SendGrid incident: Voice Call Failures from T-Mobile United States to a Subset of Twilio United States Phone Numbers

1. resolvedAug 18, 2026, 16:35 UTC

   We have completed our investigation and determined that this event did not result in any customer impact. All systems are operating normally.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in SendGrid's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

• Elasticsearch: Elasticsearch 9.5.1: false-positive matches in certain boolean queriesMajor · Aug 14, 2026, 09:22 UTC
• OVHcloud: [GRA5/7/9/11][Compute - Instance] - Some instances incident notificationMajor · Aug 18, 2026, 14:34 UTC
• Akamai: Connection drops and increased latency in MiamiMinor · Aug 13, 2026, 19:31 UTC
• Supabase: 401 errors due to JWT rejectionsMinor · Aug 14, 2026, 02:23 UTC
• Telnyx: Programmable Wireless data loss in AustraliaMinor · Aug 17, 2026, 19:27 UTC
• Twilio: SMS Delivery Delays from Twilio to Free Caraibe FranceMinor · Aug 18, 2026, 00:33 UTC
• Twilio: SMS Delivery Failures from Twilio to Lycamobile United KingdomMinor · Aug 18, 2026, 10:14 UTC
• MongoDB Atlas: Atlas UI and API Periodic UnavailabilityMinor · Aug 18, 2026, 14:10 UTC
• Twilio: SMS Delivery Delays and Failures from Twilio Phone Numbers to Claro BrazilMinor · Aug 18, 2026, 14:30 UTC
• Anthropic: Degraded performance for multiple modelsMinor · Aug 18, 2026, 16:20 UTC

How often does SendGrid have incidents?

SendGrid reported 356 incidents in the last 90 days, 2 of them major or critical. A typical incident lasted 6h 17m. See SendGrid's uptime and incident history