{"id":"EM-20261105-EI9B","url":"https://cyber.eventmonitor.net/incident/EM-20261105-EI9B/att-network-connectivity-drop/","type":"outage","title":"AT&T: Network Connectivity Drop","subtitle":"Nov 4, 2026 · Carrier · reported by IODA (Georgia Tech), Bandwidth","subject":"AT&T","status":"Confirmed","severity":"high","affected":[],"headline":"Providers' own notes put the impact at 13:40–01:00 UTC on Nov 4.","born":"2026-11-05T12:28:23.117Z","firstSignal":"2026-11-04T17:40:00.000Z","lastSignal":"2026-11-05T12:28:23.117Z","updated":"2026-11-05T12:50:28.142Z","revision":3,"life":[{"status":"Born","at":"2026-11-05T12:28:23.117Z","why":"second independent source: T18 Bandwidth status"},{"status":"Developing","at":"2026-11-05T12:28:23.117Z","why":"signals keep joining"},{"status":"Confirmed","at":"2026-11-05T12:28:23.117Z","why":"1 provider status page acknowledged it"}],"changeLog":[{"at":"2026-11-04T17:40:00.000Z","what":"First signal: C111 IODA (Georgia Tech)"},{"at":"2026-11-05T12:28:23.117Z","what":"Born: second source, T18 Bandwidth status. Page EM-20261105-EI9B created."},{"at":"2026-11-05T12:28:23.117Z","what":"Severity raised to High by T18"},{"at":"2026-11-05T12:28:23.117Z","what":"Status: Confirmed (1 provider status page acknowledged it)"}],"stages":[{"name":"First Report","at":"2026-11-04T17:40:00.000Z","detail":"C111 IODA (Georgia Tech)"},{"name":"Corroborated","at":"2026-11-05T12:28:23.117Z","detail":"2 independent sources"},{"name":"Acknowledged","at":"2026-11-05T12:28:23.117Z","detail":"T18 status page"},{"name":"Network Check","at":"2026-11-04T17:40:00.000Z","detail":"C111 IODA: network normal (lowest 99%)"},{"name":"Restored","at":null,"detail":"Still open"}],"signals":[{"at":"2026-11-04T17:40:00.000Z","source":"C111","sourceName":"IODA (Georgia Tech)","role":"Measurement","severity":2,"title":"Connectivity drop: PBI-NET-BLK2 -- California (AT&T Corp.)","text":"1 IODA alerts in 6 hours (0 critical), signals: bgp. Entity type: geoasn.","url":"https://ioda.inetintel.cc.gatech.edu/geoasn/7287-4416"},{"at":"2026-11-04T23:30:00.000Z","source":"C111","sourceName":"IODA (Georgia Tech)","role":"Measurement","severity":2,"title":"Connectivity drop: AS19957 (TENNESSEE-NET) (AT&T Enterprises, LLC)","text":"1 IODA alerts in 6 hours (1 critical), signals: bgp. Entity type: asn.","url":"https://ioda.inetintel.cc.gatech.edu/asn/19957"},{"at":"2026-11-04T23:30:00.000Z","source":"C111","sourceName":"IODA (Georgia Tech)","role":"Measurement","severity":2,"title":"Connectivity drop: TENNESSEE-NET -- United States (AT&T Corp.)","text":"1 IODA alerts in 6 hours (1 critical), signals: bgp. Entity type: geoasn.","url":"https://ioda.inetintel.cc.gatech.edu/geoasn/19957-US"},{"at":"2026-11-05T06:25:00.000Z","source":"C111","sourceName":"IODA (Georgia Tech)","role":"Measurement","severity":2,"title":"Connectivity drop: TENNESSEE-NET -- United States (AT&T Corp.)","text":"1 IODA alerts in 6 hours (0 critical), signals: bgp. Entity type: geoasn.","url":"https://ioda.inetintel.cc.gatech.edu/geoasn/19957-US"},{"at":"2026-11-05T06:25:00.000Z","source":"C111","sourceName":"IODA (Georgia Tech)","role":"Measurement","severity":2,"title":"Connectivity drop: AS19957 (TENNESSEE-NET) (AT&T Enterprises, LLC)","text":"1 IODA alerts in 6 hours (0 critical), signals: bgp. Entity type: asn.","url":"https://ioda.inetintel.cc.gatech.edu/asn/19957"},{"at":"2026-11-05T12:28:23.117Z","source":"T18","sourceName":"Bandwidth status","role":"Provider Status","severity":3,"title":"Bandwidth: Outbound 10DLC MMS Delivery Incident - T-Mobile, Verizon, AT&T","text":"postmortem. Between 13:40 UTC on November 3 and 01:00 UTC November 4, customers encountered intermittent disruption in the form of delays and expired messages for the following message types: * Outbound 10DLC MMS to Verizon and T-Mobile Subscribers * Outbound Shortcode MM","url":"https://stspg.io/phslwynrb8mj"}],"crowd":[{"at":"2026-11-05T12:37:05.863Z","source":"T57","title":"AT&T: Network Connectivity Drop https://cyber.eventmonitor.net/incident/EM-20261105-EI9B/att-network-connectivity-drop/ #news #outage","url":"https://bsky.app/profile/did:plc:tsh4whzylfb72h34r4cjvo6i/post/3mznrvqodw5bj"}],"reference":{},"mergedInto":null,"publisher":"Event Monitor Cyber"}