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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. 21 critical alerts recorded.

Open incident JSON
Reported anomaly rate
9%

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

Source measurement count
21

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

21 linked records.

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

Linked observation dates

21 dated · 0 without a verified timezone
IODA21 linked records
Mar 23, 2026 · 07:55 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.

IODA21 records · open evidence

outage · critical

ioda:alert:bgp:region:634:1774252500

IODA detected critical level outage for Anhui

Upstream claim · IODA
Signal value
0.090592
Signal baseline
861
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888243,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "634",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 861,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.09059233449477352,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:634:1774252500",
  "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:bgp:region:633:1774252500

IODA detected critical level outage for Fujian

Upstream claim · IODA
Signal value
0.026552
Signal baseline
2,335
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888244,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "633",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 2335,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.026552462526766595,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:633:1774252500",
  "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:bgp:region:627:1774252500

IODA detected critical level outage for Gansu

Upstream claim · IODA
Signal value
0.050663
Signal baseline
829
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888245,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "627",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 829,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.05066344993968637,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:627:1774252500",
  "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:bgp:region:629:1774252500

IODA detected critical level outage for Guangxi

Upstream claim · IODA
Signal value
0.012778
Signal baseline
1,800
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888246,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "629",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 1800,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.012777777777777779,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:629:1774252500",
  "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:bgp:region:648:1774252500

IODA detected critical level outage for Liaoning

Upstream claim · IODA
Signal value
0.0344
Signal baseline
2,093
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888247,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "648",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 2093,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.034400382226469184,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:648:1774252500",
  "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:bgp:region:628:1774252500

IODA detected critical level outage for Qinghai

Upstream claim · IODA
Signal value
0.08
Signal baseline
100
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888248,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "628",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 100,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.08,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:628:1774252500",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Qinghai",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:652:1774252500

IODA detected critical level outage for Jiangsu

Upstream claim · IODA
Signal value
0.014647
Signal baseline
7,237
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888249,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "652",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 7237,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.014646953157385657,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:652:1774252500",
  "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:bgp:region:637:1774252500

IODA detected critical level outage for Xinjiang

Upstream claim · IODA
Signal value
0.710145
Signal baseline
69
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": 25888250,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "637",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 69,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.7101449275362319,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:637:1774252500",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Xinjiang",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:630:1774252500

IODA detected critical level outage for Guizhou

Upstream claim · IODA
Signal value
0.015857
Signal baseline
3,027
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888251,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "630",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 3027,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.015857284440039643,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:630:1774252500",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Guizhou",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:657:1774252500

IODA detected critical level outage for Heilongjiang

Upstream claim · IODA
Signal value
0.079957
Signal baseline
938
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888255,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "657",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 938,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.07995735607675906,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:657:1774252500",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Heilongjiang",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:647:1774252500

IODA detected critical level outage for Henan

Upstream claim · IODA
Signal value
0.0193
Signal baseline
4,145
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888256,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "647",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 4145,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.019300361881785282,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:647:1774252500",
  "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:bgp:region:646:1774252500

IODA detected critical level outage for Hebei

Upstream claim · IODA
Signal value
0.014679
Signal baseline
8,107
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888257,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "646",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 8107,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.014678672751942765,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:646:1774252500",
  "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:bgp:region:636:1774252500

IODA detected critical level outage for Xizang

Upstream claim · IODA
Signal value
0.4
Signal baseline
45
Evidence confidence
75%
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": 0.75,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888258,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "636",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 45,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.4,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:636:1774252500",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Xizang",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:642:1774252500

IODA detected critical level outage for Hubei

Upstream claim · IODA
Signal value
0.021396
Signal baseline
4,113
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888260,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "642",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 4113,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.021395575006078287,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:642:1774252500",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Hubei",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:641:1774252500

IODA detected critical level outage for Shanxi

Upstream claim · IODA
Signal value
0.076548
Signal baseline
1,437
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888261,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "641",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 1437,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.07654836464857341,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:641:1774252500",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Shanxi",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:638:1774252500

IODA detected critical level outage for Hainan

Upstream claim · IODA
Signal value
0.018626
Signal baseline
859
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888262,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "638",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 859,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.018626309662398137,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:638:1774252500",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Hainan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:656:1774252500

IODA detected critical level outage for Inner Mongol

Upstream claim · IODA
Signal value
0.080645
Signal baseline
496
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888265,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "656",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 496,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.08064516129032258,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:656:1774252500",
  "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:bgp:region:655:1774252500

IODA detected critical level outage for Jilin

Upstream claim · IODA
Signal value
0.027473
Signal baseline
1,092
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888266,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "655",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 1092,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.027472527472527472,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:655:1774252500",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Jilin",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:650:1774252500

IODA detected critical level outage for Tianjin

Upstream claim · IODA
Signal value
0.01308
Signal baseline
7,722
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888267,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "650",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 7722,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.01307951307951308,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:650:1774252500",
  "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:bgp:region:643:1774252500

IODA detected critical level outage for Hunan

Upstream claim · IODA
Signal value
0.030108
Signal baseline
2,956
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888268,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "643",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 2956,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.030108254397834912,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:643:1774252500",
  "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:bgp:region:651:1774252500

IODA detected critical level outage for Jiangxi

Upstream claim · IODA
Signal value
0.072802
Signal baseline
728
Evidence confidence
65%
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": 0.65,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 25888269,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-03-23T07:55:00Z",
  "probeNodeId": null,
  "regionCode": "651",
  "retrievedAt": "2026-04-12T16:58:23.962327",
  "riskTier": 1,
  "signalBaseline": 728,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.07280219780219781,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:651:1774252500",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Jiangxi",
  "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": 21,
  "level": "low",
  "score": 0.6,
  "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": 21,
      "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-2026-0171. Source ID: CN-2026-0171. Hash ID: 3db733d94c05.

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": 0.09001189838900303,
  "attribution": {
    "asns_attributed": 0,
    "domains_attributed": 0,
    "methods": [
      {
        "evidence_count": 21,
        "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": 21,
    "level": "low",
    "score": 0.6,
    "sourceCount": 1,
    "sources": [
      "ioda"
    ]
  },
  "country": "CN",
  "countryName": "China",
  "createdAt": "2026-04-12T16:58:24.853742",
  "description": "IODA detected significant connectivity drop in China. 21 critical alerts recorded.",
  "duration": null,
  "durationHours": 0,
  "endTime": null,
  "evidence": [
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.65,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888243,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-23T07:55:00Z",
      "probeNodeId": null,
      "regionCode": "634",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 861,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.09059233449477352,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:634:1774252500",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Anhui",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.65,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888244,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-23T07:55:00Z",
      "probeNodeId": null,
      "regionCode": "633",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 2335,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.026552462526766595,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:633:1774252500",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Fujian",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.65,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888245,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-23T07:55:00Z",
      "probeNodeId": null,
      "regionCode": "627",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 829,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.05066344993968637,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:627:1774252500",
      "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": 0.65,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888246,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-23T07:55:00Z",
      "probeNodeId": null,
      "regionCode": "629",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 1800,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.012777777777777779,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:629:1774252500",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Guangxi",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.65,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888247,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-23T07:55:00Z",
      "probeNodeId": null,
      "regionCode": "648",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 2093,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.034400382226469184,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:648:1774252500",
      "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": 0.65,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888248,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-23T07:55:00Z",
      "probeNodeId": null,
      "regionCode": "628",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 100,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.08,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:628:1774252500",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Qinghai",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.65,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888249,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-23T07:55:00Z",
      "probeNodeId": null,
      "regionCode": "652",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 7237,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.014646953157385657,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:652:1774252500",
      "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": 0.8,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888250,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-23T07:55:00Z",
      "probeNodeId": null,
      "regionCode": "637",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 69,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.7101449275362319,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:637:1774252500",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Xinjiang",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.65,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888251,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-23T07:55:00Z",
      "probeNodeId": null,
      "regionCode": "630",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 3027,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.015857284440039643,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:630:1774252500",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Guizhou",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.65,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888255,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-23T07:55:00Z",
      "probeNodeId": null,
      "regionCode": "657",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 938,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.07995735607675906,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:657:1774252500",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Heilongjiang",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.65,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888256,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-23T07:55:00Z",
      "probeNodeId": null,
      "regionCode": "647",
      "retrievedAt": "2026-04-12T16:58:23.962327",
      "riskTier": 1,
      "signalBaseline": 4145,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.019300361881785282,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:647:1774252500",
      "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": 0.65,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 25888257,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-03-23T07:55:00Z",
      "probeNodeId": null,
      "regionCode": "646",
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  "evidenceCount": 21,
  "evidenceSourceBreakdown": {
    "ioda": 21
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  "evidenceSpan": {
    "earliest": "2026-03-23T07:55:00Z",
    "latest": "2026-03-23T07:55:00Z"
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  "flag": "🇨🇳",
  "generated_at_utc": "2026-09-08T20:08:07.667971Z",
  "hashId": "3db733d94c05",
  "id": "CN-2026-0171",
  "incidentType": "disruption",
  "measurementCount": 21,
  "mechanism": "Infrastructure outage",
  "readableId": "CN-2026-0171",
  "reportUrl": "https://api.voidly.ai/data/incidents/3db733d94c05/report?format=markdown",
  "revision": 1,
  "severity": "critical",
  "severityGrade": "A",
  "sources": [
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  "startTime": "2026-03-23T07:55:00Z",
  "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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