Event Monitor Cyber
EM-20261103-E1UC OutageHigh severity

AT&T: Messaging Delivery Problems

Nov 3, 2026 · Carrier · reported by Vonage, Bandwidth, Twilio, Telnyx

Share
Status
Resolved

Since : 24 hours with no new signal.

First Signal
Nov 03 09:59 UTCT21 Vonage status
Page Born
Nov 03 14:38 UTCsecond source joined
Last Signal
Nov 04 02:26 UTC28 hours before snapshot
Sources
44 official · 0 research, news or crowd
Lasted
40 hoursfirst signal to resolved

Life Of This Page

  1. 1
    Born
    A second, independent provider or measurement sees it.
  2. 2
    Developing
    Reports and measurements join.
  3. 3
    Confirmed
    A provider status page acknowledges it.
  4. 4
    Resolved · Now
    Every provider marks it resolved and 6 hours pass quietly, or 24 hours pass with no new signal.
  5. 5
    Archived
    Not yet
    30 days after resolved. Read only; the link keeps working. Reopens if it comes back.

The ID never changes, and earlier addresses keep working. A correction is logged, never overwritten. If two pages turn out to be one incident, the later one points to the earlier.

Outage Lifecycle

  1. First Report: reached
    Nov 03 09:59 UTC
    T21 Vonage status
  2. Corroborated: reached
    Nov 03 14:38 UTC
    4 independent sources
  3. Acknowledged: reached
    Nov 03 09:59 UTC
    T21 status page
  4. Network Check: reached
    Nov 03 09:59 UTC
    C111 IODA: network normal (lowest 99.3%)
  5. Restored: reached
    Nov 05 02:26 UTC
    All status incidents resolved

Timeline

06:0012:0018:00Nov 406:0012:00BornResolvedT21 Vonage statusT18 Bandwidth statusT17 Twilio statusT19 Telnyx statusCrowd posts

Point at a mark to read it. Squares are signals, colored by severity; every one is also listed under Signals.

AT&T Network During The Incident

0%50%100%Nov 2 08hNov 2 20hNov 3 08hNov 3 20hNov 4 08h

Solid blue line: routes announced. Dashed amber line: networks answering pings. Both as a share of AT&T's normal, from C111 IODA, lowest reading in each 2 hours; the shaded band is the incident. The network itself stayed at normal (lowest 99.3%): the problem was in message delivery, not the network.

Signals

  1. Vonage: USA MMS - Delivery Degradation affecting MMS traffic for AT&T network (opens source in a new tab) resolved. This incident has been resolved. Med severityProvider StatusT21 Vonage status
  2. Bandwidth: Outbound 10DLC MMS Delivery Incident - T-Mobile, Verizon, AT&T (opens source in a new tab) resolved. This incident has been resolved. High severityProvider StatusT18 Bandwidth status
  3. Twilio: MMS Delivery Receipt Delays and Delivery Delays from a Subset of Twilio Long Codes and Short Codes to AT&T United States (opens source in a new tab) 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. Med severityProvider StatusT17 Twilio status
  4. Bandwidth: Outbound 10DLC MMS Delivery Incident - T-Mobile, Verizon, AT&T (opens source in a new tab) monitoring. Teams are observing expected messaging process behavior. We will continue to monitor for stability. High severityProvider StatusT18 Bandwidth status
  5. Vonage: USA MMS - Delivery Degradation affecting MMS traffic for AT&T network (opens source in a new tab) monitoring. A fix has been implemented and we are monitoring the results. Med severityProvider StatusT21 Vonage status
  6. Twilio: MMS Delivery Receipt Delays and Delivery Delays from a Subset of Twilio Long Codes and Short Codes to AT&T United States (opens source in a new tab) 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. … Med severityProvider StatusT17 Twilio status
  7. Twilio: MMS Delivery Receipt Delays and Delivery Delays from a Subset of Twilio Long Codes and Short Codes to AT&T United States (opens source in a new tab) 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 … Med severityProvider StatusT17 Twilio status
  8. Twilio: MMS Delivery Receipt Delays and Delivery Delays from a Subset of Twilio Long Codes and Short Codes to AT&T United States (opens source in a new tab) 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 … Med severityProvider StatusT17 Twilio status
  9. Twilio: MMS Delivery Receipt Delays and Delivery Delays from a Subset of Twilio Long Codes and Short Codes to AT&T United States (opens source in a new tab) 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 … Med severityProvider StatusT17 Twilio status
  10. Twilio: MMS Delivery Receipt Delays and Delivery Delays from a Subset of Twilio Long Codes and Short Codes to AT&T United States (opens source in a new tab) 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 … Med severityProvider StatusT17 Twilio status
  11. Telnyx: 10DLC Traffic Towards Tier 1 Carriers Delayed (opens source in a new tab) 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 traf… Med severityProvider StatusT19 Telnyx status
  12. Vonage: USA MMS - Delivery Degradation affecting MMS traffic for AT&T network (opens source in a new tab) 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 … Med severityProvider StatusT21 Vonage status
  13. Twilio: MMS Delivery Receipt Delays and Delivery Delays from a Subset of Twilio Long Codes and Short Codes to AT&T United States (opens source in a new tab) 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… Med severityProvider StatusT17 Twilio status
  14. Bandwidth: Outbound 10DLC MMS Delivery Incident - T-Mobile, Verizon, AT&T (opens source in a new tab) 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. High severityProvider StatusT18 Bandwidth status
  15. Bandwidth: Outbound 10DLC MMS Delivery Incident - T-Mobile, Verizon, AT&T (opens source in a new tab) 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 expec… High severityProvider StatusT18 Bandwidth status
  16. Vonage: USA SMS - Delivery degradation affecting 10DLC traffic towards AT&T operator (opens source in a new tab) resolved. This incident has been resolved. Med severityProvider StatusT21 Vonage status
  17. Vonage: USA SMS - Delivery degradation affecting 10DLC traffic towards AT&T operator (opens source in a new tab) 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… Med severityProvider StatusT21 Vonage status

Crowd Posts At The Time

  1. AT&T customers: check the outage information available for your state. 📍 Explore AT&TOutage.us to review local activity and find relevant (opens source in a new tab) location information. If your service is affected, submit an accurate community report. 🔗 attoutage.us #ATTOutage #InternetStatus Info severityCrowdT57 Bluesky search ("outage" + carrier)
  2. ✅ The earlier minor outage affecting Twilio MMS delivery and delivery receipts to AT&T subscribers in the United States has been resolved, a (opens source in a new tab) nd messaging is operating normally. View full incident report at https://watchrr.app/service/twilio Info severityCrowdT57 Bluesky search ("outage" + carrier)
  3. ISP outage continues. Their CS has been replaced by an 'ai' chatbot which informs us that our service has been sold to AT&T? When did that h (opens source in a new tab) appen, y'all, and how do I get tech support now? Info severityCrowdT57 Bluesky search ("outage" + carrier)

Public posts naming AT&T within 6 hours of the incident. Shown for context; they do not change the status.