Event Monitor Cyber
EM-20261103-AID1 OutageHigh severity

T-Mobile: Messaging Delivery Problems

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

Status
Confirmed

Since : 3 provider status pages acknowledged it.

First Signal
Nov 03 14:38 UTCT18 Bandwidth status
Page Born
Nov 03 14:51 UTCsecond source joined
Last Signal
Nov 04 02:17 UTC9 hours before snapshot
Sources
33 official · 0 research, news or crowd
Lasted
18 hoursso far

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 · Now
    A provider status page acknowledges it.
  4. 4
    Resolved
    Not yet
    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 address and ID never change. 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 14:38 UTC
    T18 Bandwidth status
  2. Corroborated: reached
    Nov 03 14:51 UTC
    3 independent sources
  3. Acknowledged: reached
    Nov 03 14:38 UTC
    T18 status page
  4. Network Check: reached
    Nov 03 14:38 UTC
    C111 IODA: network normal (lowest 99.6%)
  5. Restored: not yet
    Not yet
    Still open

Timeline

12:0018:00Nov 406:00BornT18 Bandwidth statusT17 Twilio statusT19 Telnyx status

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

T-Mobile Network During The Incident

0%50%100%Nov 2 13hNov 3 01hNov 3 13hNov 4 01h

Solid blue line: routes announced. Dashed amber line: networks answering pings. Both as a share of T-Mobile's normal, from C111 IODA, lowest reading in each 2 hours; the shaded band is the incident. The network itself stayed at normal (lowest 99.6%): the problem was in message delivery, not the network.

Signals

  1. 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
  2. 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
  3. Twilio: MMS Delivery Delay and Failure from a Sub et of Twilio Short Code to T-Mobile and Verizon United State (opens source in a new tab) resolved. The incident has been resolved and MMS delivery from a subset of Twilio Short Codes to T-Mobile and Verizon network subscribers in the United States is operating normally. Med severityProvider StatusT17 Twilio status
  4. Twilio: MMS Delivery Delay and Failure from a Sub et of Twilio Short Code to T-Mobile and Verizon United State (opens source in a new tab) monitoring. We have observed a recovery in MMS delivery from a subset of Twilio Short Codes to T-Mobile and Verizon network subscribers in the United States and are monitoring service stability. We will provide another u… Med severityProvider StatusT17 Twilio status
  5. Twilio: MMS Delivery Delay and Failure from a Sub et of Twilio Short Code to T-Mobile and Verizon United State (opens source in a new tab) identified. Twilio customers may be experiencing MMS delivery delays and MMS delivery failures from a subset of Twilio Short Codes to T-Mobile and Verizon network subscribers in the United States. Our team has identified… Med severityProvider StatusT17 Twilio status
  6. Twilio: MMS Delivery Delay and Failure from a Sub et of Twilio Short Code to T-Mobile and Verizon United State (opens source in a new tab) identified. Twilio customers may be experiencing MMS delivery delays and failures from a subset of Twilio Short Codes to T-Mobile and Verizon network subscribers in the United States. Our team has identified the cause, a… Med severityProvider StatusT17 Twilio status
  7. Telnyx: 10DLC Traffic Toward Tier 1 Carrier 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
  8. Twilio: MMS Delivery Delay and Failure from a Sub et of Twilio Short Code to T-Mobile and Verizon United State (opens source in a new tab) investigating. Twilio customers may be experiencing MMS delivery delays and delivery failures from a subset of Twilio Long Codes and Short Codes to network subscribers on multiple networks in the United States. Our team … Med severityProvider StatusT17 Twilio status
  9. 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
  10. Twilio: MMS Delivery Delay and Failure from a Sub et of Twilio Short Code to T-Mobile and Verizon United State (opens source in a new tab) investigating. Twilio customers may be experiencing MMS delivery delays and delivery failures from a subset of Twilio Long Codes and Short Codes to network subscribers on multiple networks in the United States. Our team … Med severityProvider StatusT17 Twilio status
  11. 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