# SMS Delivery Failures To Telefonica Network In Mexico Via A Subset Of Longcodes

- Provider: [Twilio](https://down.guide/twilio)
- Level: confirmed
- Impact: Degraded
- lasted 2d 19h
- started 2026-03-07 15:50 UTC
- SMS, Latin America
- id: DWN-6106042ae3
- Official page: https://stspg.io/5315k0nhsn4z

## Updates from Twilio
### 2026-03-07 15:50 UTC: investigating
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Phone Numbers to Telefonica network subscribers in Mexico. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

### 2026-03-07 16:48 UTC: identified
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Phone Numbers to Telefonica network subscribers in Mexico. 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.

### 2026-03-07 17:46 UTC: identified
Twilio customers may continue to experience SMS delivery failures from a subset of Twilio Phone Numbers to Telefonica network subscribers in Mexico. Our team is actively working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

### 2026-03-07 19:43 UTC: identified
Twilio customers may continue to experience SMS delivery failures from a subset of Twilio Phone Numbers to Telefonica network subscribers in Mexico. Our team is actively working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.

### 2026-03-07 23:31 UTC: identified
Twilio customers may continue to experience SMS delivery failures from a subset of Twilio Phone Numbers to Telefonica network subscribers in Mexico. Our team is actively working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.

### 2026-03-08 07:26 UTC: identified
Twilio customers may continue to experience SMS delivery failures from a subset of Twilio Phone Numbers to Telefonica network subscribers in Mexico. Our team is actively working to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.

### 2026-03-08 22:16 UTC: identified
Twilio customers may continue to experience SMS delivery failures from a subset of Twilio Phone Numbers to Telefonica network subscribers in Mexico. Our team is actively working to resolve the issue. We will provide another update in 24 hours or as soon as more information becomes available.

### 2026-03-09 22:16 UTC: identified
Twilio customers may continue to experience SMS delivery failures from a subset of Twilio Phone Numbers to Telefonica network subscribers in Mexico. Our team is actively working to resolve the issue. We will provide another update in 24 hours or as soon as more information becomes available.

### 2026-03-10 11:12 UTC: resolved
The incident has been resolved and SMS delivery from a subset of Twilio Long Codes to Telefonica network subscribers in Mexico is operating normally.

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