{"id":"EM-20261103-E1UC","url":"https://cyber.eventmonitor.net/incident/EM-20261103-E1UC/","type":"outage","title":"AT&T: Messaging Delivery Problems","subtitle":"Nov 3, 2026 · Carrier · reported by Vonage, Bandwidth, Twilio, Telnyx","subject":"AT&T","status":"Confirmed","severity":"high","affected":[],"headline":null,"born":"2026-11-03T14:38:08.483Z","firstSignal":"2026-11-03T09:59:04.871Z","lastSignal":"2026-11-04T02:26:26.184Z","updated":"2026-11-04T10:51:29.662Z","revision":5,"life":[{"status":"Born","at":"2026-11-03T14:38:08.483Z","why":"second independent source: T18 Bandwidth status"},{"status":"Developing","at":"2026-11-03T14:38:08.483Z","why":"signals keep joining"},{"status":"Confirmed","at":"2026-11-03T14:38:08.483Z","why":"4 provider status pages acknowledged it"}],"changeLog":[{"at":"2026-11-03T09:59:04.871Z","what":"First signal: T21 Vonage status"},{"at":"2026-11-03T14:38:08.483Z","what":"Born: second source, T18 Bandwidth status. Page EM-20261103-E1UC created."},{"at":"2026-11-03T14:38:08.483Z","what":"Severity raised to High by T18"},{"at":"2026-11-03T14:38:08.483Z","what":"Status: Confirmed (4 provider status pages acknowledged it)"},{"at":"2026-11-03T15:43:23.652Z","what":"Source joined: T17 Twilio status"},{"at":"2026-11-03T16:10:24.000Z","what":"Source joined: T19 Telnyx status"}],"stages":[{"name":"First Report","at":"2026-11-03T09:59:04.871Z","detail":"T21 Vonage status"},{"name":"Corroborated","at":"2026-11-03T14:38:08.483Z","detail":"4 independent sources"},{"name":"Acknowledged","at":"2026-11-03T09:59:04.871Z","detail":"T21 status page"},{"name":"Network Check","at":"2026-11-03T09:59:04.871Z","detail":"C111 IODA: network normal (lowest 99.3%)"},{"name":"Restored","at":null,"detail":"Still open"}],"signals":[{"at":"2026-11-03T09:59:04.871Z","source":"T21","sourceName":"Vonage status","role":"Provider Status","severity":2,"title":"Vonage: USA SMS - Delivery degradation affecting 10DLC  traffic toward  AT&T operator","text":"investigating. Please be advised that we are observing SMS delivery degradation for 10dlc towards AT&T operator in USA.. We are working towards resolution of the issue and will issue an update as soon as more information becomes available. If you have any questions, please c","url":"https://stspg.io/04x7mqjdmrlv"},{"at":"2026-11-03T12:16:46.322Z","source":"T21","sourceName":"Vonage status","role":"Provider Status","severity":2,"title":"Vonage: USA SMS - Delivery degradation affecting 10DLC  traffic toward  AT&T operator","text":"resolved. This incident has been resolved.","url":"https://stspg.io/04x7mqjdmrlv"},{"at":"2026-11-03T14:38:08.483Z","source":"T18","sourceName":"Bandwidth status","role":"Provider Status","severity":3,"title":"Bandwidth: Outbound 10DLC MMS Delivery Incident - T-Mobile, Verizon, AT&T","text":"investigating. Bandwidth teams have identified an off-network incident impacting the timely delivery of MMS messages to T-Mobile and Verizon destinations. Bandwidth is working with this industry provider to restore expected MMS delivery.","url":"https://stspg.io/phslwynrb8mj"},{"at":"2026-11-03T15:25:15.000Z","source":"T18","sourceName":"Bandwidth status","role":"Provider Status","severity":3,"title":"Bandwidth: Outbound 10DLC MMS Delivery Incident - T-Mobile, Verizon, AT&T","text":"investigating. Teams continue to work with the off net provided to resolve MMS delivery delays. This delay includes 10DLC Outbound MMS and Short Code MMS messages for T-Mobile, Verizon, and AT&T destinations.","url":"https://stspg.io/phslwynrb8mj"},{"at":"2026-11-03T15:43:23.652Z","source":"T17","sourceName":"Twilio status","role":"Provider Status","severity":2,"title":"Twilio: MMS Delivery Receipt Delay  and Delivery Delay  from a Sub et of Twilio Long Code  and Short Code  to AT&T United State","text":"investigating. Twilio customers may be experiencing MMS delivery receipt delays from a subset of Twilio Long Codes and Short Codes to AT&T network subscribers in the United States. Our team is actively investigating this issue. Message delivery may succeed, but delivery rece","url":"https://stspg.io/2d1jnfkj7bd9"},{"at":"2026-11-03T16:09:11.093Z","source":"T21","sourceName":"Vonage status","role":"Provider Status","severity":2,"title":"Vonage: USA MMS - Delivery Degradation affecting MMS traffic for AT&T network","text":"investigating. We have observed MMS delivery degradation affecting Long Codes and Short codes to AT&T network subscribers in the United States The carrier is aware of this issue and investigating the root cause. We will issue an update as soon as more information becomes ava","url":"https://stspg.io/fdfybmp0tb0q"},{"at":"2026-11-03T16:10:24.000Z","source":"T19","sourceName":"Telnyx status","role":"Provider Status","severity":2,"title":"Telnyx: 10DLC Traffic Toward  Tier 1 Carrier  Delayed","text":"identified. We are experiencing delays across Tier 1 carriers AT&T, T-Mobile, and Verizon due to heightened traffic volume. Carriers report network constraints. Messages are processing but may face further delays as traffic increases. We are monitoring closely.","url":"https://status.telnyx.com"},{"at":"2026-11-03T16:39:08.142Z","source":"T17","sourceName":"Twilio status","role":"Provider Status","severity":2,"title":"Twilio: MMS Delivery Receipt Delay  and Delivery Delay  from a Sub et of Twilio Long Code  and Short Code  to AT&T United State","text":"identified. Twilio customers may be experiencing MMS delivery receipt delays from a subset of Twilio Long Codes and Short Codes to AT&T network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may s","url":"https://stspg.io/2d1jnfkj7bd9"},{"at":"2026-11-03T17:37:08.358Z","source":"T17","sourceName":"Twilio status","role":"Provider Status","severity":2,"title":"Twilio: MMS Delivery Receipt Delay  and Delivery Delay  from a Sub et of Twilio Long Code  and Short Code  to AT&T United State","text":"identified. Twilio customers may be experiencing MMS delivery delays from a subset of Twilio Long Codes and Short Codes to AT&T network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, ","url":"https://stspg.io/2d1jnfkj7bd9"},{"at":"2026-11-03T18:38:07.966Z","source":"T17","sourceName":"Twilio status","role":"Provider Status","severity":2,"title":"Twilio: MMS Delivery Receipt Delay  and Delivery Delay  from a Sub et of Twilio Long Code  and Short Code  to AT&T United State","text":"identified. Twilio customers may be experiencing MMS delivery delays from a subset of Twilio Long Codes and Short Codes to AT&T network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, ","url":"https://stspg.io/2d1jnfkj7bd9"},{"at":"2026-11-03T20:38:59.880Z","source":"T17","sourceName":"Twilio status","role":"Provider Status","severity":2,"title":"Twilio: MMS Delivery Receipt Delay  and Delivery Delay  from a Sub et of Twilio Long Code  and Short Code  to AT&T United State","text":"identified. Twilio customers may be experiencing MMS delivery delays from a subset of Twilio Long Codes and Short Codes to AT&T network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, ","url":"https://stspg.io/2d1jnfkj7bd9"},{"at":"2026-11-04T00:08:54.314Z","source":"T17","sourceName":"Twilio status","role":"Provider Status","severity":2,"title":"Twilio: MMS Delivery Receipt Delay  and Delivery Delay  from a Sub et of Twilio Long Code  and Short Code  to AT&T United State","text":"monitoring. We have observed a recovery in MMS delivery and MMS delivery receipts from a subset of Twilio Long Codes and Short Codes to AT&T network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon","url":"https://stspg.io/2d1jnfkj7bd9"},{"at":"2026-11-04T00:15:00.414Z","source":"T21","sourceName":"Vonage status","role":"Provider Status","severity":2,"title":"Vonage: USA MMS - Delivery Degradation affecting MMS traffic for AT&T network","text":"monitoring. A fix has been implemented and we are monitoring the results.","url":"https://stspg.io/fdfybmp0tb0q"},{"at":"2026-11-04T01:24:26.477Z","source":"T18","sourceName":"Bandwidth status","role":"Provider Status","severity":3,"title":"Bandwidth: Outbound 10DLC MMS Delivery Incident - T-Mobile, Verizon, AT&T","text":"monitoring. Teams are observing expected messaging process behavior. We will continue to monitor for stability.","url":"https://stspg.io/phslwynrb8mj"},{"at":"2026-11-04T02:08:25.764Z","source":"T17","sourceName":"Twilio status","role":"Provider Status","severity":2,"title":"Twilio: MMS Delivery Receipt Delay  and Delivery Delay  from a Sub et of Twilio Long Code  and Short Code  to AT&T United State","text":"resolved. The incident has been resolved and MMS delivery receipts and MMS delivery from a subset of Twilio Long Codes and Short Codes to AT&T network subscribers in the United States are operating normally.","url":"https://stspg.io/2d1jnfkj7bd9"},{"at":"2026-11-04T02:17:45.772Z","source":"T18","sourceName":"Bandwidth status","role":"Provider Status","severity":3,"title":"Bandwidth: Outbound 10DLC MMS Delivery Incident - T-Mobile, Verizon, AT&T","text":"resolved. This incident has been resolved.","url":"https://stspg.io/phslwynrb8mj"},{"at":"2026-11-04T02:26:26.184Z","source":"T21","sourceName":"Vonage status","role":"Provider Status","severity":2,"title":"Vonage: USA MMS - Delivery Degradation affecting MMS traffic for AT&T network","text":"resolved. This incident has been resolved.","url":"https://stspg.io/fdfybmp0tb0q"}],"crowd":[{"at":"2026-11-03T14:32:09.848Z","source":"T57","title":"ISP outage continue . Their CS ha  been replaced by an 'ai' chatbot which inform  u  that our  ervice ha  been  old to AT&T? When did that h","url":"https://bsky.app/profile/did:plc:buowlazbbw5y26ccwdtvf2bk/post/3mzg2keqd6k27"},{"at":"2026-11-04T02:09:08.405Z","source":"T57","title":"✅ The earlier minor outage affecting Twilio MMS delivery and delivery receipt  to AT&T  ub criber  in the United State  ha  been re olved, a","url":"https://bsky.app/profile/did:plc:3wil263a67244xdtjzg6jhhu/post/3mzhbio336p2p"},{"at":"2026-11-04T07:08:15.579Z","source":"T57","title":"AT&T cu tomer : check the outage information available for your  tate. 📍\n\nExplore AT&TOutage.u  to review local activity and find relevant","url":"https://bsky.app/profile/did:plc:rlchxohadh5v3zocwefia3zt/post/3mzhs7jrnv22f"}],"reference":{},"mergedInto":null,"publisher":"Event Monitor Cyber"}