SMS Delivery Delays from a Subset of Twilio Phone Numbers to Vivo Brazil

Final update

The incident has been resolved and SMS delivery from a subset of Twilio Phone Numbers to Vivo network subscribers in Brazil is operating normally.

1. Resolved · Oct 29, 15:54 UTC
   The incident has been resolved and SMS delivery from a subset of Twilio Phone Numbers to Vivo network subscribers in Brazil is operating normally.
2. Monitoring · Oct 29, 15:12 UTC
   We have observed a recovery in SMS delivery from a subset of Twilio Phone Numbers to Vivo network subscribers in Brazil and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
3. Identified · Oct 29, 15:01 UTC
   Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Phone Numbers to Vivo network subscribers in Brazil. 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.
4. Identified · Oct 29, 14:01 UTC
   Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Phone Numbers to Vivo network subscribers in Brazil. 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.
5. Monitoring · Oct 29, 13:58 UTC
   We have observed a recovery in SMS delivery from a subset of Twilio Phone Numbers to Vivo network subscribers in Brazil and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
6. Identified · Oct 29, 13:57 UTC
   Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Phone Numbers to Vivo network subscribers in Brazil. 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.
7. Investigating · Oct 29, 13:24 UTC
   Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Phone Numbers to Vivo network subscribers in Brazil. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
8. Investigating · Oct 29, 12:18 UTC
   Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Phone Numbers to Vivo network subscribers in Brazil. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.