Heymarket incident

SMS Delivery Delays and Failures to AT&T Network in the US for a Subset of 10 Digit Long Codes

Minor Resolved View vendor source →

Heymarket experienced a minor incident on October 20, 2025 affecting Messaging, lasting 5h 33m. The incident has been resolved; the full update timeline is below.

Started
Oct 20, 2025, 06:07 PM UTC
Resolved
Oct 20, 2025, 11:40 PM UTC
Duration
5h 33m
Detected by Pingoru
Oct 20, 2025, 06:07 PM UTC

Affected components

Messaging

Update timeline

  1. investigating Oct 20, 2025, 06:07 PM UTC

    Carrier is reporting SMS delivery delays when sending messages to AT&T US Network via a subset of 10DLC long codes that is impacting a subset of users.

  2. investigating Oct 20, 2025, 11:29 PM UTC

    This incident has been resolved.

  3. investigating Oct 20, 2025, 11:40 PM UTC

    We are continuing to investigate this issue.

  4. resolved Oct 20, 2025, 11:40 PM UTC

    This incident has been resolved.