Connectivity issues from AT&T networks to IPv4

Update timeline

1. resolved Jun 26, 2025, 12:30 PM UTC

   Type: Incident Duration: 6 days, 2 hours and 29 minutes Affected Components: Edge Network Jun 26, 12:30:00 GMT+0 - Identified - We are getting customer reports regarding connectivity issues to Deno Deploy from AT&T networks when connecting via IPv4. We are in contact with AT&T to resolve the issue as quickly as possible. IPv6 traffic is unaffected. If you are a Deno Deploy customer with a custom domain and are affected by this issue, please contact [email protected]. Jun 28, 12:52:03 GMT+0 - Identified - The issue is still ongoing. We continue chasing AT&T to resolve the issue. AT&T users are not able to reach custom domains hosted on Deno Deploy over IPv4. Jul 2, 14:58:35 GMT+0 - Resolved - This incident has been resolved. All AT&T customers should now be able to access all Deno Deploy services over IPv4 once again. If you are still seeing issues, please reach out to us directly at [[email protected]](mailto:[email protected]). IPv6 traffic was unaffected during the course of the incident. If you were affected by this outage and would like to talk, please email us at [[email protected]](mailto:[email protected]).