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Outage in Zipwhip

SMS Delivery Delays from Twilio to Airtel India

Resolved Minor
September 16, 2026 - Started about 14 hours ago - Lasted about 5 hours
Official incident page

Incident Report

Summary AI Generated

Zipwhip experienced a 5-hour incident where SMS messages from Twilio to Airtel network subscribers in India faced delivery delays. The team identified the root cause during the investigation and worked to restore normal delivery. The incident was fully resolved with SMS delivery returning to normal operation.

Twilio customers may be experiencing SMS delivery delays from Twilio to Airtel network subscribers in India. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

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Latest Updates ( sorted recent to last )
RESOLVED about 9 hours ago - at 09/16/2026 02:38PM

The incident has been resolved and SMS delivery from Twilio to Airtel network subscribers in India is operating normally.

MONITORING about 10 hours ago - at 09/16/2026 12:55PM

We have observed a recovery in SMS delivery from Twilio to Airtel network subscribers in India and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

IDENTIFIED about 11 hours ago - at 09/16/2026 12:53PM

Twilio customers may be experiencing SMS delivery delays from Twilio to Airtel network subscribers in India. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.

IDENTIFIED about 13 hours ago - at 09/16/2026 10:52AM

Twilio customers may be experiencing SMS delivery delays from Twilio to Airtel network subscribers in India. 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.

IDENTIFIED about 14 hours ago - at 09/16/2026 09:52AM

Twilio customers may be experiencing SMS delivery delays from Twilio to Airtel network subscribers in India. 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.

INVESTIGATING about 14 hours ago - at 09/16/2026 09:40AM

Twilio customers may be experiencing SMS delivery delays from Twilio to Airtel network subscribers in India. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

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