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Data

Incident record · Tanzania

Internet connectivity disruption in Tanzania

Type
mixed
Status
active
Severity
critical
Inspect evidence Cite this incident

Source summary

IODA detected significant connectivity drop in Tanzania. 9 critical alerts recorded. CenAlert confirms censorship activity.

Open incident JSON
Reported anomaly rate
7.1%

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

Source measurement count
9

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

Incident confidence
70%

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

11 linked records.

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

Qualifying linked evidence sources: IODA (9) · Censored Planet (2). Historical incident source labels may include quarantined observations and are not detection evidence by themselves.

Linked observation dates

11 dated · 0 without a verified timezone
IODA9 linked records
Censored Planet2 linked records
Sep 10, 2026 · 00:00 UTCSep 10, 2026 · 22:30 UTC

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.

IODA9 records · open evidence

outage · critical

ioda:alert:bgp:region:4219:1789079400

IODA detected critical level outage for Dar-Es-Salaam

Upstream claim · IODA
Signal value
0.01416
Signal baseline
2,048
Evidence confidence
65%
Link confidence
80%

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

Retrieved
2026-09-11 00:00:05.041206 · timezone unspecified
Open IODA entity dashboard (day parameters)
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "citationScope": "signal_window",
  "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
  "confidence": 0.65,
  "continent": "Africa",
  "countryCode": "TZ",
  "domain": null,
  "domainCategory": null,
  "exactMeasurementLink": false,
  "id": 418413990,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-09-10T22:30:00Z",
  "probeNodeId": null,
  "regionCode": "4219",
  "retrievedAt": "2026-09-11T00:00:05.041206",
  "riskTier": 3,
  "signalBaseline": 2048,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.01416015625,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:4219:1789079400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
  "unSubregion": "Eastern Africa",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Dar-Es-Salaam",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:4211:1789079400

IODA detected critical level outage for Mbeya

Upstream claim · IODA
Signal value
0.119048
Signal baseline
42
Evidence confidence
65%
Link confidence
80%

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

Retrieved
2026-09-11 00:00:05.041206 · timezone unspecified
Open IODA entity dashboard (day parameters)
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "citationScope": "signal_window",
  "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
  "confidence": 0.65,
  "continent": "Africa",
  "countryCode": "TZ",
  "domain": null,
  "domainCategory": null,
  "exactMeasurementLink": false,
  "id": 418413991,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-09-10T22:30:00Z",
  "probeNodeId": null,
  "regionCode": "4211",
  "retrievedAt": "2026-09-11T00:00:05.041206",
  "riskTier": 3,
  "signalBaseline": 42,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.11904761904761904,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:4211:1789079400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
  "unSubregion": "Eastern Africa",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Mbeya",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:4214:1789079400

IODA detected critical level outage for Mwanza

Upstream claim · IODA
Signal value
0.047619
Signal baseline
42
Evidence confidence
65%
Link confidence
80%

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

Retrieved
2026-09-11 00:00:05.041206 · timezone unspecified
Open IODA entity dashboard (day parameters)
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "citationScope": "signal_window",
  "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
  "confidence": 0.65,
  "continent": "Africa",
  "countryCode": "TZ",
  "domain": null,
  "domainCategory": null,
  "exactMeasurementLink": false,
  "id": 418413992,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-09-10T22:30:00Z",
  "probeNodeId": null,
  "regionCode": "4214",
  "retrievedAt": "2026-09-11T00:00:05.041206",
  "riskTier": 3,
  "signalBaseline": 42,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.047619047619047616,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:4214:1789079400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
  "unSubregion": "Eastern Africa",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Mwanza",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:4215:1789079400

IODA detected critical level outage for Shinyanga

Upstream claim · IODA
Signal value
0.115385
Signal baseline
26
Evidence confidence
65%
Link confidence
80%

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

Retrieved
2026-09-11 00:00:05.041206 · timezone unspecified
Open IODA entity dashboard (day parameters)
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "citationScope": "signal_window",
  "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
  "confidence": 0.65,
  "continent": "Africa",
  "countryCode": "TZ",
  "domain": null,
  "domainCategory": null,
  "exactMeasurementLink": false,
  "id": 418413993,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-09-10T22:30:00Z",
  "probeNodeId": null,
  "regionCode": "4215",
  "retrievedAt": "2026-09-11T00:00:05.041206",
  "riskTier": 3,
  "signalBaseline": 26,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.11538461538461539,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:4215:1789079400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
  "unSubregion": "Eastern Africa",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Shinyanga",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:4220:1789079400

IODA detected critical level outage for Morogoro

Upstream claim · IODA
Signal value
0.096154
Signal baseline
52
Evidence confidence
65%
Link confidence
80%

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

Retrieved
2026-09-11 00:00:05.041206 · timezone unspecified
Open IODA entity dashboard (day parameters)
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "citationScope": "signal_window",
  "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
  "confidence": 0.65,
  "continent": "Africa",
  "countryCode": "TZ",
  "domain": null,
  "domainCategory": null,
  "exactMeasurementLink": false,
  "id": 418413994,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-09-10T22:30:00Z",
  "probeNodeId": null,
  "regionCode": "4220",
  "retrievedAt": "2026-09-11T00:00:05.041206",
  "riskTier": 3,
  "signalBaseline": 52,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.09615384615384616,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:4220:1789079400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
  "unSubregion": "Eastern Africa",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Morogoro",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:4223:1789079400

IODA detected critical level outage for Pwani

Upstream claim · IODA
Signal value
0.055556
Signal baseline
54
Evidence confidence
65%
Link confidence
80%

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

Retrieved
2026-09-11 00:00:05.041206 · timezone unspecified
Open IODA entity dashboard (day parameters)
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "citationScope": "signal_window",
  "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
  "confidence": 0.65,
  "continent": "Africa",
  "countryCode": "TZ",
  "domain": null,
  "domainCategory": null,
  "exactMeasurementLink": false,
  "id": 418413995,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-09-10T22:30:00Z",
  "probeNodeId": null,
  "regionCode": "4223",
  "retrievedAt": "2026-09-11T00:00:05.041206",
  "riskTier": 3,
  "signalBaseline": 54,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.05555555555555555,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:4223:1789079400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
  "unSubregion": "Eastern Africa",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Pwani",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:4226:1789079400

IODA detected critical level outage for Dodoma

Upstream claim · IODA
Signal value
0.04717
Signal baseline
106
Evidence confidence
65%
Link confidence
80%

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

Retrieved
2026-09-11 00:00:05.041206 · timezone unspecified
Open IODA entity dashboard (day parameters)
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "citationScope": "signal_window",
  "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
  "confidence": 0.65,
  "continent": "Africa",
  "countryCode": "TZ",
  "domain": null,
  "domainCategory": null,
  "exactMeasurementLink": false,
  "id": 418413996,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-09-10T22:30:00Z",
  "probeNodeId": null,
  "regionCode": "4226",
  "retrievedAt": "2026-09-11T00:00:05.041206",
  "riskTier": 3,
  "signalBaseline": 106,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.04716981132075472,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:4226:1789079400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
  "unSubregion": "Eastern Africa",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Dodoma",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:4232:1789079400

IODA detected critical level outage for Arusha

Upstream claim · IODA
Signal value
0.019608
Signal baseline
204
Evidence confidence
65%
Link confidence
80%

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

Retrieved
2026-09-11 00:00:05.041206 · timezone unspecified
Open IODA entity dashboard (day parameters)
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "citationScope": "signal_window",
  "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
  "confidence": 0.65,
  "continent": "Africa",
  "countryCode": "TZ",
  "domain": null,
  "domainCategory": null,
  "exactMeasurementLink": false,
  "id": 418413997,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-09-10T22:30:00Z",
  "probeNodeId": null,
  "regionCode": "4232",
  "retrievedAt": "2026-09-11T00:00:05.041206",
  "riskTier": 3,
  "signalBaseline": 204,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.0196078431372549,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:4232:1789079400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
  "unSubregion": "Eastern Africa",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Arusha",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:bgp:region:4236:1789079400

IODA detected critical level outage for Tanga

Upstream claim · IODA
Signal value
0.121951
Signal baseline
41
Evidence confidence
65%
Link confidence
80%

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

Retrieved
2026-09-11 00:00:05.041206 · timezone unspecified
Open IODA entity dashboard (day parameters)
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "citationScope": "signal_window",
  "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
  "confidence": 0.65,
  "continent": "Africa",
  "countryCode": "TZ",
  "domain": null,
  "domainCategory": null,
  "exactMeasurementLink": false,
  "id": 418413998,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-09-10T22:30:00Z",
  "probeNodeId": null,
  "regionCode": "4236",
  "retrievedAt": "2026-09-11T00:00:05.041206",
  "riskTier": 3,
  "signalBaseline": 41,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.12195121951219512,
  "source": "ioda",
  "sourceRef": "ioda:alert:bgp:region:4236:1789079400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
  "unSubregion": "Eastern Africa",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Tanga",
  "upstreamSeverity": "critical"
}
Censored Planet2 records · open evidence

http-blocking-timeout · elevated

censoredplanet:hyperquack:HTTP:TZ:protonvpn.com:2026-09-10

HTTP blocking (timeout): 2/4 probes blocked (50.0%) for protonvpn.com

Upstream claim · Censored Planet
Signal value
0.5
Signal baseline
Unavailable
Evidence confidence
80%
Link confidence
80%

Why it is linked: CenAlert event for same country and date range

Domain
protonvpn.com
Retrieved
Sep 11, 2026 · 16:27 UTC
Open publisher data portal
Complete evidence record
{
  "asn": 37349,
  "blockingMethod": null,
  "citationScope": "publisher_portal",
  "citationUrl": "https://data.censoredplanet.org",
  "confidence": 0.8,
  "continent": "Africa",
  "countryCode": "TZ",
  "domain": "protonvpn.com",
  "domainCategory": "ANON",
  "exactMeasurementLink": false,
  "id": 420416698,
  "kind": "http-probe",
  "linkConfidence": 0.8,
  "linkReason": "CenAlert event for same country and date range",
  "observedAt": "2026-09-10T00:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-09-11T16:27:03.510754Z",
  "riskTier": 3,
  "signalBaseline": null,
  "signalLevel": "elevated",
  "signalType": "http-blocking-timeout",
  "signalValue": 0.5,
  "source": "censoredplanet",
  "sourceRef": "censoredplanet:hyperquack:HTTP:TZ:protonvpn.com:2026-09-10",
  "sourceUrl": "https://data.censoredplanet.org",
  "unSubregion": "Eastern Africa",
  "upstreamCause": null,
  "upstreamClaim": "HTTP blocking (timeout): 2/4 probes blocked (50.0%) for protonvpn.com",
  "upstreamSeverity": null
}

http-blocking-timeout · elevated

censoredplanet:hyperquack:HTTP:TZ:telegram.org:2026-09-10

HTTP blocking (timeout): 2/4 probes blocked (50.0%) for telegram.org

Upstream claim · Censored Planet
Signal value
0.5
Signal baseline
Unavailable
Evidence confidence
80%
Link confidence
80%

Why it is linked: CenAlert event for same country and date range

Domain
telegram.org
Retrieved
Sep 11, 2026 · 16:27 UTC
Open publisher data portal
Complete evidence record
{
  "asn": 37349,
  "blockingMethod": null,
  "citationScope": "publisher_portal",
  "citationUrl": "https://data.censoredplanet.org",
  "confidence": 0.8,
  "continent": "Africa",
  "countryCode": "TZ",
  "domain": "telegram.org",
  "domainCategory": "COMT",
  "exactMeasurementLink": false,
  "id": 420416714,
  "kind": "http-probe",
  "linkConfidence": 0.8,
  "linkReason": "CenAlert event for same country and date range",
  "observedAt": "2026-09-10T00:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-09-11T16:27:03.510754Z",
  "riskTier": 3,
  "signalBaseline": null,
  "signalLevel": "elevated",
  "signalType": "http-blocking-timeout",
  "signalValue": 0.5,
  "source": "censoredplanet",
  "sourceRef": "censoredplanet:hyperquack:HTTP:TZ:telegram.org:2026-09-10",
  "sourceUrl": "https://data.censoredplanet.org",
  "unSubregion": "Eastern Africa",
  "upstreamCause": null,
  "upstreamClaim": "HTTP blocking (timeout): 2/4 probes blocked (50.0%) for telegram.org",
  "upstreamSeverity": null
}
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": "2 source labels present (ioda, censoredplanet); target/time agreement not verified",
  "evidenceCount": 11,
  "level": "medium",
  "score": 0.8,
  "sourceCount": 2,
  "sources": [
    "ioda",
    "censoredplanet"
  ]
}

Declared incident sources (historical metadata): IODA · Censored Planet.

Qualifying linked evidence sources: IODA (9) · Censored Planet (2).

Multiple qualifying linked source labels do not establish target and time agreement or source independence.

Scope and attribution

What the record names.

Methodology

Affected services

Proton VPNProtonVPNTelegram

Incident mechanism

Infrastructure outage

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

Affected domains · 2

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

protonvpn.comtelegram.org
Networks and evidence attribution

ASNs named by this source record: AS37349.

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

{
  "asns_attributed": 2,
  "domains_attributed": 2,
  "methods": [
    {
      "evidence_count": 9,
      "method": "outage"
    },
    {
      "evidence_count": 2,
      "method": "http-blocking-timeout"
    }
  ],
  "note": "Aggregated from this incident's qualifying linked evidence rows — only domains, ASNs, and blocking methods the evidence literally records are shown, with the per-item evidence count.",
  "sources": [
    "censoredplanet",
    "ioda"
  ],
  "top_asns": [
    {
      "asn": "AS37349",
      "evidence_count": 2
    }
  ],
  "top_domains": [
    {
      "domain": "protonvpn.com",
      "evidence_count": 1
    },
    {
      "domain": "telegram.org",
      "evidence_count": 1
    }
  ]
}
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
2026-09-11 00:00:09.228989 · timezone unspecified
Last updated
2026-09-12 06:00:09.796334 · timezone unspecified
Revision
3
Revision history and original fields

Revision-history array unavailable.

Canonical ID: TZ-2026-0150. Source ID: TZ-2026-0150. Hash ID: a69183e89bac.

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": [
    "AS37349"
  ],
  "affectedDomains": [
    "protonvpn.com",
    "telegram.org"
  ],
  "affectedServices": [
    "Proton VPN",
    "ProtonVPN",
    "Telegram"
  ],
  "anomalyRate": 0.07073885710898761,
  "attribution": {
    "asns_attributed": 2,
    "domains_attributed": 2,
    "methods": [
      {
        "evidence_count": 9,
        "method": "outage"
      },
      {
        "evidence_count": 2,
        "method": "http-blocking-timeout"
      }
    ],
    "note": "Aggregated from this incident's qualifying linked evidence rows — only domains, ASNs, and blocking methods the evidence literally records are shown, with the per-item evidence count.",
    "sources": [
      "censoredplanet",
      "ioda"
    ],
    "top_asns": [
      {
        "asn": "AS37349",
        "evidence_count": 2
      }
    ],
    "top_domains": [
      {
        "domain": "protonvpn.com",
        "evidence_count": 1
      },
      {
        "domain": "telegram.org",
        "evidence_count": 1
      }
    ]
  },
  "confidence": 0.7,
  "corroboration": {
    "description": "2 source labels present (ioda, censoredplanet); target/time agreement not verified",
    "evidenceCount": 11,
    "level": "medium",
    "score": 0.8,
    "sourceCount": 2,
    "sources": [
      "ioda",
      "censoredplanet"
    ]
  },
  "country": "TZ",
  "countryName": "Tanzania",
  "createdAt": "2026-09-11T00:00:09.228989",
  "description": "IODA detected significant connectivity drop in Tanzania. 9 critical alerts recorded. CenAlert confirms censorship activity.",
  "duration": null,
  "durationHours": 0,
  "endTime": null,
  "evidence": [
    {
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      "citationScope": "signal_window",
      "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
      "confidence": 0.65,
      "continent": "Africa",
      "countryCode": "TZ",
      "domain": null,
      "domainCategory": null,
      "exactMeasurementLink": false,
      "id": 418413990,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-09-10T22:30:00Z",
      "probeNodeId": null,
      "regionCode": "4219",
      "retrievedAt": "2026-09-11T00:00:05.041206",
      "riskTier": 3,
      "signalBaseline": 2048,
      "signalLevel": "critical",
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      "signalValue": 0.01416015625,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:4219:1789079400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
      "unSubregion": "Eastern Africa",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Dar-Es-Salaam",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "citationScope": "signal_window",
      "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
      "confidence": 0.65,
      "continent": "Africa",
      "countryCode": "TZ",
      "domain": null,
      "domainCategory": null,
      "exactMeasurementLink": false,
      "id": 418413991,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-09-10T22:30:00Z",
      "probeNodeId": null,
      "regionCode": "4211",
      "retrievedAt": "2026-09-11T00:00:05.041206",
      "riskTier": 3,
      "signalBaseline": 42,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.11904761904761904,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:4211:1789079400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
      "unSubregion": "Eastern Africa",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Mbeya",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "citationScope": "signal_window",
      "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
      "confidence": 0.65,
      "continent": "Africa",
      "countryCode": "TZ",
      "domain": null,
      "domainCategory": null,
      "exactMeasurementLink": false,
      "id": 418413992,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-09-10T22:30:00Z",
      "probeNodeId": null,
      "regionCode": "4214",
      "retrievedAt": "2026-09-11T00:00:05.041206",
      "riskTier": 3,
      "signalBaseline": 42,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.047619047619047616,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:4214:1789079400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
      "unSubregion": "Eastern Africa",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Mwanza",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "citationScope": "signal_window",
      "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
      "confidence": 0.65,
      "continent": "Africa",
      "countryCode": "TZ",
      "domain": null,
      "domainCategory": null,
      "exactMeasurementLink": false,
      "id": 418413993,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-09-10T22:30:00Z",
      "probeNodeId": null,
      "regionCode": "4215",
      "retrievedAt": "2026-09-11T00:00:05.041206",
      "riskTier": 3,
      "signalBaseline": 26,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.11538461538461539,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:4215:1789079400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
      "unSubregion": "Eastern Africa",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Shinyanga",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "citationScope": "signal_window",
      "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
      "confidence": 0.65,
      "continent": "Africa",
      "countryCode": "TZ",
      "domain": null,
      "domainCategory": null,
      "exactMeasurementLink": false,
      "id": 418413994,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-09-10T22:30:00Z",
      "probeNodeId": null,
      "regionCode": "4220",
      "retrievedAt": "2026-09-11T00:00:05.041206",
      "riskTier": 3,
      "signalBaseline": 52,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.09615384615384616,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:4220:1789079400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
      "unSubregion": "Eastern Africa",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Morogoro",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "citationScope": "signal_window",
      "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
      "confidence": 0.65,
      "continent": "Africa",
      "countryCode": "TZ",
      "domain": null,
      "domainCategory": null,
      "exactMeasurementLink": false,
      "id": 418413995,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-09-10T22:30:00Z",
      "probeNodeId": null,
      "regionCode": "4223",
      "retrievedAt": "2026-09-11T00:00:05.041206",
      "riskTier": 3,
      "signalBaseline": 54,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.05555555555555555,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:4223:1789079400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
      "unSubregion": "Eastern Africa",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Pwani",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "citationScope": "signal_window",
      "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
      "confidence": 0.65,
      "continent": "Africa",
      "countryCode": "TZ",
      "domain": null,
      "domainCategory": null,
      "exactMeasurementLink": false,
      "id": 418413996,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-09-10T22:30:00Z",
      "probeNodeId": null,
      "regionCode": "4226",
      "retrievedAt": "2026-09-11T00:00:05.041206",
      "riskTier": 3,
      "signalBaseline": 106,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.04716981132075472,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:4226:1789079400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
      "unSubregion": "Eastern Africa",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Dodoma",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "citationScope": "signal_window",
      "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
      "confidence": 0.65,
      "continent": "Africa",
      "countryCode": "TZ",
      "domain": null,
      "domainCategory": null,
      "exactMeasurementLink": false,
      "id": 418413997,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-09-10T22:30:00Z",
      "probeNodeId": null,
      "regionCode": "4232",
      "retrievedAt": "2026-09-11T00:00:05.041206",
      "riskTier": 3,
      "signalBaseline": 204,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.0196078431372549,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:4232:1789079400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
      "unSubregion": "Eastern Africa",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Arusha",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "citationScope": "signal_window",
      "citationUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ?from=1788998400&until=1789084800",
      "confidence": 0.65,
      "continent": "Africa",
      "countryCode": "TZ",
      "domain": null,
      "domainCategory": null,
      "exactMeasurementLink": false,
      "id": 418413998,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-09-10T22:30:00Z",
      "probeNodeId": null,
      "regionCode": "4236",
      "retrievedAt": "2026-09-11T00:00:05.041206",
      "riskTier": 3,
      "signalBaseline": 41,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.12195121951219512,
      "source": "ioda",
      "sourceRef": "ioda:alert:bgp:region:4236:1789079400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/TZ",
      "unSubregion": "Eastern Africa",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Tanga",
      "upstreamSeverity": "critical"
    },
    {
      "asn": 37349,
      "blockingMethod": null,
      "citationScope": "publisher_portal",
      "citationUrl": "https://data.censoredplanet.org",
      "confidence": 0.8,
      "continent": "Africa",
      "countryCode": "TZ",
      "domain": "protonvpn.com",
      "domainCategory": "ANON",
      "exactMeasurementLink": false,
      "id": 420416698,
      "kind": "http-probe",
      "linkConfidence": 0.8,
      "linkReason": "CenAlert event for same country and date range",
      "observedAt": "2026-09-10T00:00:00Z",
      "probeNodeId": null,
      "regionCode": null,
      "retrievedAt": "2026-09-11T16:27:03.510754Z",
      "riskTier": 3,
      "signalBaseline": null,
      "signalLevel": "elevated",
      "signalType": "http-blocking-timeout",
      "signalValue": 0.5,
      "source": "censoredplanet",
      "sourceRef": "censoredplanet:hyperquack:HTTP:TZ:protonvpn.com:2026-09-10",
      "sourceUrl": "https://data.censoredplanet.org",
      "unSubregion": "Eastern Africa",
      "upstreamCause": null,
      "upstreamClaim": "HTTP blocking (timeout): 2/4 probes blocked (50.0%) for protonvpn.com",
      "upstreamSeverity": null
    },
    {
      "asn": 37349,
      "blockingMethod": null,
      "citationScope": "publisher_portal",
      "citationUrl": "https://data.censoredplanet.org",
      "confidence": 0.8,
      "continent": "Africa",
      "countryCode": "TZ",
      "domain": "telegram.org",
      "domainCategory": "COMT",
      "exactMeasurementLink": false,
      "id": 420416714,
      "kind": "http-probe",
      "linkConfidence": 0.8,
      "linkReason": "CenAlert event for same country and date range",
      "observedAt": "2026-09-10T00:00:00Z",
      "probeNodeId": null,
      "regionCode": null,
      "retrievedAt": "2026-09-11T16:27:03.510754Z",
      "riskTier": 3,
      "signalBaseline": null,
      "signalLevel": "elevated",
      "signalType": "http-blocking-timeout",
      "signalValue": 0.5,
      "source": "censoredplanet",
      "sourceRef": "censoredplanet:hyperquack:HTTP:TZ:telegram.org:2026-09-10",
      "sourceUrl": "https://data.censoredplanet.org",
      "unSubregion": "Eastern Africa",
      "upstreamCause": null,
      "upstreamClaim": "HTTP blocking (timeout): 2/4 probes blocked (50.0%) for telegram.org",
      "upstreamSeverity": null
    }
  ],
  "evidenceCount": 11,
  "evidenceSourceBreakdown": {
    "censoredplanet": 2,
    "ioda": 9
  },
  "evidenceSpan": {
    "earliest": "2026-09-10T00:00:00Z",
    "latest": "2026-09-10T22:30:00Z"
  },
  "flag": "🇹🇿",
  "generated_at_utc": "2026-11-07T01:11:27.015564Z",
  "hashId": "a69183e89bac",
  "id": "TZ-2026-0150",
  "incidentType": "mixed",
  "measurementCount": 9,
  "mechanism": "Infrastructure outage",
  "normalOoniObservationCount": 0,
  "normalOoniObservationNote": "These linked OONI rows carry the historical signal_level='normal' stored label and are quarantined from qualifying evidence pending regrade. The label is not proof that every row was accessible or anomaly-free: low-anomaly rows and rows with an omitted confirmed result may be present.",
  "normalOoniObservations": [],
  "readableId": "TZ-2026-0150",
  "reportUrl": "https://api.voidly.ai/data/incidents/a69183e89bac/report?format=markdown",
  "revision": 3,
  "severity": "critical",
  "severityGrade": "A",
  "sources": [
    "ioda",
    "censoredplanet"
  ],
  "startTime": "2026-09-10T22:30:00Z",
  "status": "active",
  "title": "Internet connectivity disruption in Tanzania",
  "updatedAt": "2026-09-12T06:00:09.796334"
}
All Tanzania incidents
Nov 6, 2026 · disruptionInternet connectivity disruption in TanzaniaNov 2, 2026 · censorshipInternet censorship detected in TanzaniaNov 1, 2026 · disruptionInternet connectivity disruption in TanzaniaNov 1, 2026 · censorshipSustained censorship in TZ (2026-11)Oct 29, 2026 · censorshipInternet censorship detected in TanzaniaOct 28, 2026 · disruptionInternet connectivity disruption in Tanzania
More with the same mechanism · Infrastructure outage
Oct 27, 2026Internet connectivity disruption in TanzaniaOct 21, 2026Internet connectivity disruption in TanzaniaOct 18, 2026Internet connectivity disruption in TanzaniaOct 14, 2026Internet connectivity disruption in TanzaniaOct 13, 2026Internet connectivity disruption in Tanzania

Related records come from up to 100 recent records in the same country. They do not establish a causal connection.

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Read the published record and its observation dates. A fresh response does not mean a new measurement or confirm a current restriction.

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Agent summary

Facts: Internet connectivity disruption in Tanzania. Country: Tanzania. Source type: mixed. Source status: active. Reported observation window: 2026-09-10T22:30:00Z to unavailable.

As of linked evidence: . Record generated: 2026-11-07T01:11:27.015564Z; page checked: 2026-11-07T01:11:27.043Z. These are different times.

Stored incident source labels: 2 distinct declared names (ioda, censoredplanet). These are historical metadata; qualifying linked sources are shown above. Source names are not independent corroboration.

Cite: Voidly Research. (n.d.). Internet connectivity disruption in Tanzania [TZ-2026-0150]. Voidly Global Censorship Index. https://voidly.ai/incident/TZ-2026-0150

Publication date: Not supplied.

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Voidly-original annotations: CC BY 4.0. Upstream data retain their source licenses.