SMS Delivery Delays and Failures to Cingular Wireless AT&T in US Over a Subset of Longcodes.

Resolved

Twilio SMS was degraded for 5 minutes between 12:30 and 12:35 Pacific Time on 04/10/2025. During this period of time customers may have experienced SMS delivery delays and failures to Cingular Wireless AT&T in the US Over a subset of longcodes. The issue has now been resolved.