voidly
Data

Incident record · China

Internet connectivity disruption in China

Type
disruption
Status
active
Severity
critical
Inspect evidence Cite this incident

Source summary

IODA detected significant connectivity drop in China. 22 critical alerts recorded.

Open incident JSON
Reported anomaly rate
93%

Source-defined signal; not a universal test-failure percentage.

Source measurement count
22

The record’s count can represent aggregate inputs or alerts.

Incident confidence
75%

A source score, not certainty of intentional censorship.

Linked evidence has its own count and confidence fields. These quantities are not interchangeable.

Follow the evidence

22 linked records.

Inspect the observation, the upstream claim and why it was linked.

Linked observation dates

22 dated · 0 without a verified timezone
IODA22 linked records
Mar 22, 2026 · 00:26 UTCSingle observed timestamp

Each point is a linked record. Horizontal position shows observation time; stacking separates nearby points. The full records below provide the values. This is not a measured outage-duration chart.

Upstream claims are attributed to their source. Multiple records or source names do not by themselves establish independent corroboration.

IODA22 records · open evidence

outage · critical

ioda:alert:merit-nt:region:632:1774139160

IODA detected critical level outage for Beijing

Upstream claim · IODA
Signal value
0.922078
Signal baseline
231
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25887998,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "632",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 231,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.922077922077922,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:632:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Beijing",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:635:1774139160

IODA detected critical level outage for Guangdong

Upstream claim · IODA
Signal value
0.947883
Signal baseline
307
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25887999,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "635",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 307,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9478827361563518,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:635:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Guangdong",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:644:1774139160

IODA detected critical level outage for Sichuan

Upstream claim · IODA
Signal value
0.907692
Signal baseline
65
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888000,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "644",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 65,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9076923076923077,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:644:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Sichuan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:648:1774139160

IODA detected critical level outage for Liaoning

Upstream claim · IODA
Signal value
0.890411
Signal baseline
73
Evidence confidence
80%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888001,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "648",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 73,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.8904109589041096,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:648:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Liaoning",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:647:1774139160

IODA detected critical level outage for Henan

Upstream claim · IODA
Signal value
0.967136
Signal baseline
213
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888008,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "647",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 213,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9671361502347418,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:647:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Henan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:649:1774139160

IODA detected critical level outage for Shandong

Upstream claim · IODA
Signal value
0.993103
Signal baseline
145
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888009,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "649",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 145,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.993103448275862,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:649:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Shandong",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:654:1774139160

IODA detected critical level outage for Zhejiang

Upstream claim · IODA
Signal value
0.900943
Signal baseline
212
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888010,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "654",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 212,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9009433962264151,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:654:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Zhejiang",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:652:1774139160

IODA detected critical level outage for Jiangsu

Upstream claim · IODA
Signal value
0.937063
Signal baseline
143
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888023,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "652",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 143,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9370629370629371,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:652:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Jiangsu",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:627:1774139160

IODA detected critical level outage for Gansu

Upstream claim · IODA
Signal value
0.9
Signal baseline
30
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888026,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "627",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 30,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:627:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Gansu",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:629:1774139160

IODA detected critical level outage for Guangxi

Upstream claim · IODA
Signal value
0.916667
Signal baseline
24
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888027,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "629",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 24,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9166666666666666,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:629:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Guangxi",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:633:1774139160

IODA detected critical level outage for Fujian

Upstream claim · IODA
Signal value
0.911765
Signal baseline
34
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888028,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "633",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 34,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9117647058823529,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:633:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Fujian",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:634:1774139160

IODA detected critical level outage for Anhui

Upstream claim · IODA
Signal value
0.842105
Signal baseline
38
Evidence confidence
80%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888029,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "634",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 38,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.8421052631578947,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:634:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Anhui",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:631:1774139160

IODA detected critical level outage for Chongqing

Upstream claim · IODA
Signal value
0.90625
Signal baseline
32
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888034,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "631",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 32,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.90625,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:631:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Chongqing",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:643:1774139160

IODA detected critical level outage for Hunan

Upstream claim · IODA
Signal value
0.970588
Signal baseline
34
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888035,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "643",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 34,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9705882352941176,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:643:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Hunan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:650:1774139160

IODA detected critical level outage for Tianjin

Upstream claim · IODA
Signal value
0.954545
Signal baseline
22
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888036,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "650",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 22,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9545454545454546,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:650:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Tianjin",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:651:1774139160

IODA detected critical level outage for Jiangxi

Upstream claim · IODA
Signal value
0.875
Signal baseline
24
Evidence confidence
80%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888037,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "651",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 24,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.875,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:651:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Jiangxi",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:653:1774139160

IODA detected critical level outage for Shanghai

Upstream claim · IODA
Signal value
0.924528
Signal baseline
212
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888038,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "653",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 212,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9245283018867925,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:653:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Shanghai",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:645:1774139160

IODA detected critical level outage for Yunnan

Upstream claim · IODA
Signal value
0.964286
Signal baseline
28
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888046,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "645",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 28,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9642857142857143,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:645:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Yunnan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:646:1774139160

IODA detected critical level outage for Hebei

Upstream claim · IODA
Signal value
0.890625
Signal baseline
64
Evidence confidence
80%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888047,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "646",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 64,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.890625,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:646:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Hebei",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:656:1774139160

IODA detected critical level outage for Inner Mongol

Upstream claim · IODA
Signal value
0.966667
Signal baseline
30
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888064,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "656",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 30,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9666666666666667,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:656:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Inner Mongol",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:640:1774139160

IODA detected critical level outage for Shaanxi

Upstream claim · IODA
Signal value
0.972222
Signal baseline
72
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888067,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "640",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 72,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.9722222222222222,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:640:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Shaanxi",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:merit-nt:region:642:1774139160

IODA detected critical level outage for Hubei

Upstream claim · IODA
Signal value
1
Signal baseline
37
Evidence confidence
85%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-04-12 16:58:23.962327 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.85,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888068,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-22T00:26:00Z",
  "probeNodeId": null,
  "regionCode": "642",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 37,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 1,
  "source": "ioda",
  "sourceRef": "ioda:alert:merit-nt:region:642:1774139160",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Hubei",
  "upstreamSeverity": "critical"
}
Source-reported corroboration

The source’s corroboration assessment is separate from incident confidence and evidence-link confidence. Inspect its source list, count and description.

{
  "description": "Single source: ioda",
  "evidenceCount": 22,
  "level": "low",
  "score": 0.65,
  "sourceCount": 1,
  "sources": [
    "ioda"
  ]
}

Declared incident sources: IODA.

This record does not list two distinct sources. Treat it as a single-source or uncorroborated record.

Scope and attribution

What the record names.

Methodology

Affected services

No services named.

Incident mechanism

Infrastructure outage

Individual evidence may carry more specific methods. Those do not automatically describe the entire incident.

Affected domains · 0

Domains named by the source record. Each link opens country-specific OONI measurements; a named domain is not a blanket national-block verdict.

No domains named.

Networks and evidence attribution

ASNs named by this source record: None listed.

This aggregate describes fields literally present in linked evidence. It does not identify who caused an event or prove intent.

{
  "asns_attributed": 0,
  "domains_attributed": 0,
  "methods": [
    {
      "evidence_count": 22,
      "method": "outage"
    }
  ],
  "note": "Aggregated from this incident's linked evidence rows — only domains, ASNs, and blocking methods the evidence literally records are shown, with the per-item evidence count. No per-domain/per-ASN attribution is present in the linked evidence for this incident (e.g. country/ASN-level outage signals).",
  "sources": [
    "ioda"
  ],
  "top_asns": [],
  "top_domains": []
}
What this record cannot establish

Measurements alone do not attribute an event to a government, ISP or another actor, and do not establish intent. An outage or anomalous result can have several explanations.

The country label is an aggregation scope. It is not a census of every network, city or service. Regional or ASN fields belong to their individual source evidence and should not be expanded into a national claim.

A confirmed duration is not supplied. The source observation window and evidence timestamps do not prove an exact start and stop of blocking.

Signal definitions, baseline rates and model versions depend on the source. This record does not establish a common baseline or calibrated certainty. Use the source’s specific signal definition and evaluation before interpreting a score.

Inspect measurement coverage

Cite this incident

Take the record
with you.

Use the permanent published URL.
The original source title is preserved.

BibTeX ↓RIS ↓Markdown ↓JSON ↓Full citation page →

The record over time.

Created
2026-04-12 16:58:24.853742 · timezone unspecified
Last updated
2026-04-12 16:58:24.853742 · timezone unspecified
Revision
1
Revision history and original fields

Revision-history array unavailable.

Canonical ID: CN-2026-0170. Source ID: CN-2026-0170. Hash ID: c6f79a935ecc.

Additional source duration field: 0 hours. It is retained separately from the minutes field and does not establish a verified event duration.

Complete source JSON
{
  "affectedAsns": [],
  "affectedDomains": [],
  "affectedServices": [],
  "anomalyRate": 0.9300708221472059,
  "attribution": {
    "asns_attributed": 0,
    "domains_attributed": 0,
    "methods": [
      {
        "evidence_count": 22,
        "method": "outage"
      }
    ],
    "note": "Aggregated from this incident's linked evidence rows — only domains, ASNs, and blocking methods the evidence literally records are shown, with the per-item evidence count. No per-domain/per-ASN attribution is present in the linked evidence for this incident (e.g. country/ASN-level outage signals).",
    "sources": [
      "ioda"
    ],
    "top_asns": [],
    "top_domains": []
  },
  "confidence": 0.75,
  "corroboration": {
    "description": "Single source: ioda",
    "evidenceCount": 22,
    "level": "low",
    "score": 0.65,
    "sourceCount": 1,
    "sources": [
      "ioda"
    ]
  },
  "country": "CN",
  "countryName": "China",
  "createdAt": "2026-04-12T16:58:24.853742",
  "description": "IODA detected significant connectivity drop in China. 22 critical alerts recorded.",
  "duration": null,
  "durationHours": 0,
  "endTime": null,
  "evidence": [
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.85,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25887998,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-22T00:26:00Z",
      "probeNodeId": null,
      "regionCode": "632",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 231,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.922077922077922,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:632:1774139160",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Beijing",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.85,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25887999,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-22T00:26:00Z",
      "probeNodeId": null,
      "regionCode": "635",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 307,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.9478827361563518,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:635:1774139160",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Guangdong",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.85,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888000,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-22T00:26:00Z",
      "probeNodeId": null,
      "regionCode": "644",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 65,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.9076923076923077,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:644:1774139160",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Sichuan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.8,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888001,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-22T00:26:00Z",
      "probeNodeId": null,
      "regionCode": "648",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 73,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.8904109589041096,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:648:1774139160",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Liaoning",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.85,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888008,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-22T00:26:00Z",
      "probeNodeId": null,
      "regionCode": "647",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 213,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.9671361502347418,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:647:1774139160",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Henan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.85,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888009,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-22T00:26:00Z",
      "probeNodeId": null,
      "regionCode": "649",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 145,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.993103448275862,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:649:1774139160",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Shandong",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.85,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888010,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-22T00:26:00Z",
      "probeNodeId": null,
      "regionCode": "654",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 212,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.9009433962264151,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:654:1774139160",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Zhejiang",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.85,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888023,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-22T00:26:00Z",
      "probeNodeId": null,
      "regionCode": "652",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 143,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.9370629370629371,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:652:1774139160",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Jiangsu",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.85,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888026,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-22T00:26:00Z",
      "probeNodeId": null,
      "regionCode": "627",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 30,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.9,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:627:1774139160",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Gansu",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.85,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888027,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-22T00:26:00Z",
      "probeNodeId": null,
      "regionCode": "629",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 24,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.9166666666666666,
      "source": "ioda",
      "sourceRef": "ioda:alert:merit-nt:region:629:1774139160",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Guangxi",
      "upstreamSeverity": "critical"
    },
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      "upstreamClaim": "IODA detected critical level outage for Jiangxi",
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      "upstreamClaim": "IODA detected critical level outage for Shanghai",
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      "observedAt": "2026-03-22T00:26:00Z",
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      "upstreamClaim": "IODA detected critical level outage for Yunnan",
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      "upstreamClaim": "IODA detected critical level outage for Hebei",
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      "upstreamClaim": "IODA detected critical level outage for Shaanxi",
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      "upstreamClaim": "IODA detected critical level outage for Hubei",
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  "evidenceCount": 22,
  "evidenceSourceBreakdown": {
    "ioda": 22
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  "evidenceSpan": {
    "earliest": "2026-03-22T00:26:00Z",
    "latest": "2026-03-22T00:26:00Z"
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  "flag": "🇨🇳",
  "generated_at_utc": "2026-09-20T08:21:04.298239Z",
  "hashId": "c6f79a935ecc",
  "id": "CN-2026-0170",
  "incidentType": "disruption",
  "measurementCount": 22,
  "mechanism": "Infrastructure outage",
  "readableId": "CN-2026-0170",
  "reportUrl": "https://api.voidly.ai/data/incidents/c6f79a935ecc/report?format=markdown",
  "revision": 1,
  "severity": "critical",
  "severityGrade": "B",
  "sources": [
    "ioda"
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  "startTime": "2026-03-22T00:26:00Z",
  "status": "active",
  "title": "Internet connectivity disruption in China",
  "updatedAt": "2026-04-12T16:58:24.853742"
}
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Related records come from up to 100 recent records in the same country. They do not establish a causal connection.

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