Minor incident

Twilio: SMS Delivery Delays from a Subset of Twilio Short Codes to Cellularone NE Arizona United States

Oct 21, 2026, 17:10 UTC

started

10:57 UTC

resolved October 22, 2026

17 h 46 min

duration

Affected: SMS Short Code, North America

Current status of Twilio: Minor issues — live Twilio status

Timeline

Oct 21, 2026, 17:10 UTC
investigating
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Cellularone 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.
Oct 21, 2026, 18:11 UTC
investigating
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Cellularone network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
Oct 21, 2026, 20:19 UTC
monitoring
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Cellularone 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.
Oct 21, 2026, 22:20 UTC
monitoring
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Cellularone network subscribers in the United States and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
Oct 22, 2026, 02:25 UTC
monitoring
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Cellularone network subscribers in the United States and are monitoring service stability. We will provide another update in 8 hours or as soon as more information becomes available.
Oct 22, 2026, 10:57 UTC
resolved
The incident has been resolved and SMS delivery from a subset of Twilio Short Codes to Cellularone NE Arizona network subscribers in the United States is operating normally.

Updates as published by Twilio (original).

Other services with incidents at the same time

This was part of a wider event: 109 services reported incidents within the hour.

Scaleway 18:05 UTC · [GAPI] - [global] - Dedicated deployment deletion failing
Dartmouth College 18:04 UTC · Claude Code System Down
Mixpanel 18:00 UTC · Degraded Service for Requests to decide.mixpanel.com
Lovable 17:57 UTC · Lovable is slow at answering
Ledger 17:57 UTC · Service Loyalty Backend is down.
Ledger 17:57 UTC · Service Loyalty Program is down.
AfterShip 17:54 UTC · AfterShip Warranty: All claims are blocked. [Start Time: 2026/10/21 8:00 AM UTC - End Time: 2026/10/21 6:00 PM UTC]
Sentry 17:53 UTC · Increased latency processing integration webhooks
Granola 17:49 UTC · Desktop app transcription and other functions failing for some users
Genetec Cloud Products 17:42 UTC · ClearID facing issues with plugin version 3.0.1153 - Command processing
Strava 17:41 UTC · iOS Purchase Issues
Cursor 17:40 UTC · Elevated errors for Bitbucket Cloud integrations
Clever 17:35 UTC · Clever is updating our home page. Product login and usage is not impacted.
ElevenLabs 17:30 UTC · Marketing website
ElevenLabs 17:30 UTC · Inbound Twilio calls experiencing intermittent connection failures

More Twilio incidents

October 26, 2026 WhatsApp Sandbox Sending Configuration Issues
October 26, 2026 SMS Delivery Delays and Failures from Twilio to Mauritel Mauritania
October 26, 2026 Voice Call Failures from Twilio Phone Numbers to Digi.Mobil Romania
October 26, 2026 SMS Delivery Delays from Twilio to Cellcom Israel
October 25, 2026 SMS Delivery Delays from Twilio to Telcel Mexico
October 25, 2026 SMS Delivery Delays and Failures from Twilio to Claro Brazil and Puerto Rico