Zingle incident

SMS and MMS Delivery Delays from Twilio Phone Numbers to Verizon United States

Resolved after 5 days 5 hours, on May 27, 2026.

monitoring 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.

Started
May 27, 2026, 05:13 PM UTC
Resolved
Jun 01, 2026, 11:08 PM UTC
Duration
5d 5h
Detected by Pingoru
May 27, 2026, 05:13 PM UTC

Update timeline

  1. monitoring 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. monitoring 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. monitoring 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. monitoring 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. monitoring 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. monitoring 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. monitoring 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. monitoring 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. monitoring 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. monitoring 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.

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