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SendGrid: SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Verizon United States

Affected components: CARRIER NETWORK - SMS Short Code, North AmericaSMS Short Code, North America

Timeline of updates

1. investigating2026-10-16 16:56 UTC

   Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes 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. identified2026-10-16 16:57 UTC

   Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes 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.

3. monitoring2026-10-16 17:59 UTC

   We have observed a recovery in SMS delivery from a subset of Twilio Short Codes 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.

4. monitoring2026-10-16 18:41 UTC

   We have observed a recovery in SMS delivery receipts from a subset of Twilio Short Codes 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.

5. resolved2026-10-16 20:07 UTC

   The incident has been resolved and SMS delivery receipts from a subset of Twilio Short Codes to Verizon network subscribers in the United States are operating normally.

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