Twilio incident

SMS and MMS Delivery Delays from Twilio to Verizon United States

Minor Resolved View vendor source →

Twilio experienced a minor incident on May 27, 2026 affecting SMS Long Code, North America and SMS Long Code, North America and 1 more component, lasting 1d 12h. The incident has been resolved; the full update timeline is below.

Started
May 27, 2026, 05:13 PM UTC
Resolved
May 29, 2026, 05:54 AM UTC
Duration
1d 12h
Detected by Pingoru
May 27, 2026, 05:13 PM UTC

Affected components

SMS Long Code, North AmericaSMS Long Code, North AmericaMMS Long Code, North AmericaMMS Long Code, North AmericaSMS Short Code, North AmericaSMS Toll-Free, North AmericaMMS Short Code, North AmericaMMS Toll-Free, North AmericaSMS Toll-Free, North AmericaMMS Toll-Free, North America

Update timeline

  1. investigating May 27, 2026, 05:13 PM UTC

    Twilio customers may be experiencing SMS and MMS delivery delays from Twilio Phone Numbers to Verizon network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

  2. investigating May 27, 2026, 06:14 PM UTC

    Twilio customers may be experiencing SMS and MMS delivery delays from Twilio to Verizon network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.

  3. identified May 27, 2026, 06:18 PM UTC

    Twilio customers may be experiencing SMS and MMS delivery delays from Twilio to Verizon network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

  4. identified May 27, 2026, 07:19 PM UTC

    Twilio customers may be experiencing SMS and MMS delivery delays from Twilio to Verizon network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

  5. identified May 27, 2026, 09:30 PM UTC

    Twilio customers may be experiencing SMS and MMS delivery delays from Twilio to Verizon network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.

  6. identified May 28, 2026, 01:45 AM UTC

    We have observed a recovery in SMS delivery however, customers may still experience MMS delivery delays when sending from Twilio phone numbers to Verizon subscribers in the United States. Our engineering team has identified the root cause and is actively working on a resolution. We will provide another update in 8 hours, or sooner if new information becomes available.

  7. identified May 28, 2026, 08:37 AM UTC

    We have observed a recovery in SMS delivery however, customers may still experience MMS delivery delays when sending from Twilio phone numbers to Verizon subscribers in the United States. Our engineering team has identified the root cause and is actively working on a resolution. We will provide another update in 8 hours, or sooner if new information becomes available.

  8. identified May 28, 2026, 09:47 AM UTC

    We have observed a recovery in SMS delivery however, customers may still experience MMS delivery delays when sending from Twilio phone numbers to Verizon subscribers in the United States. Our engineering team has identified the root cause and is actively working on a resolution. We will provide another update in 8 hours, or sooner if new information becomes available.

  9. identified May 28, 2026, 08:56 PM UTC

    We are continuing to work on a fix for this issue.

  10. monitoring May 28, 2026, 11:34 PM UTC

    We have observed a recovery in SMS and MMS delivery from Twilio to Verizon network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

  11. monitoring May 29, 2026, 01:49 AM UTC

    We have observed a recovery in SMS and MMS delivery from Twilio Phone Numbers to Verizon network subscribers in the United States and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.

  12. resolved May 29, 2026, 05:54 AM UTC

    The incident has been resolved and SMS and MMS delivery from Twilio to Verizon network subscribers in the United States are operating normally.