Incident History

WhatsApp sender functionality was degraded for 24 hours & 28 minutes between 3:58 PM PT on 10/14/2025 and 4:26PM PT on 10/15/2025. During this period, customers may have experienced issues updating their WhatsApp senders. The issue has now been resolved.

We are no longer experiencing SMS Delivery Delays from Bitel Network Subscribers to a Subset of Short Codes in Peru. This incident has been resolved.

Following an amendment to Decree 4/2012 (I.24), calls made to Hungary using fixed or geographic numbers (like +36 1-9...) as a CLI are now likely to be blocked by local carriers, as of October 15, 2025. This will expand to mobile numbers (like +36 20, 30, 70...) starting June 1, 2026.

This means calls made with Transit Caller ID and Verified Caller ID will be delivered by Twilio on a best-effort basis when you're using a Hungarian CLI.

Recommended steps:

• For calls made into Hungary using Verified Caller ID or Transit Caller ID avoid using Hungarian numbers (+36 1-9… and +36 20, 30, 70...) as your CLI as the calls are likely to be blocked.
• If a Hungary CLI isn’t a priority for your use case, use a non-Hungarian CLI like your main business or international service number. If you need one, you can quickly get a United States (+1) number right in the Twilio Console to use for these calls.

If you observe abnormal failure patterns, please reach out to Twilio Support for further assistance.

The issues affecting Account Security - US Verizon API have been resolved and the service is operating normally at this time.

We are no longer experiencing SMS delivery delays when sending messages to Etisalat network in multiple countries. This incident has been resolved.

We are no longer experiencing SMS delivery delays and failures when sending messages to Safaricom in Ethiopia. This incident has been resolved.

We have fully investigated the Opt Out Failing for RCS Messaging Services Messages issue triggered by our automated alert, and it was determined that there is no noticeable customer impact. All systems are operational.

We are no longer experiencing SMS delivery delays when sending messages to Shelcomm Network in US for a subset of Long Codes, Short Codes, and Toll Free. This incident has been resolved.

We are no longer experiencing SMS delivery delays when sending messages to Altan Redes network in Mexico. This incident has been resolved.

We are no longer experiencing SMS delivery when sending messages to Italy Networks. This incident has been resolved.