# Telnyx: Major incident: MMS Delivery Delays to AT&T Destinations

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2026-09-23 16:42 UTC · Detected: 2026-10-19 17:33 UTC
- [Source: https://status.telnyx.com/incidents/01M37JATD5FD76Z3NB5SA52994](https://status.telnyx.com/incidents/01M37JATD5FD76Z3NB5SA52994)
- [Company: Telnyx](https://rewindex.com/company/telnyx.md)
- Versions: before (none: first archived) → after incident\_version:705/01M37JATD5FD76Z3NB5SA52994@8f76016cd5ed
- Change 1 of 1 for this incident

Incident page (full timeline): [MMS Delivery Delays to AT&T Destinations](https://rewindex.com/company/telnyx/incidents/01M37JATD5FD76Z3NB5SA52994.md)
## What changed

**1. Added: Title**

```diff
+ MMS Delivery Delays to AT&T Destinations
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-09-23 16:42 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-09-23 19:54 UTC
```

**6. Added: Update** (investigating) · 2026-09-23 16:42 UTC

```diff
+ We are investigating delayed MMS delivery to AT&T destinations. Messages are being delivered, but with delays. SMS to AT&T and MMS to other carriers are unaffected. We are working with our downstream partner to identify the cause of the delay.
```

**7. Added: Update** (resolved) · 2026-09-23 19:54 UTC

```diff
+ MMS delivery to AT&T destinations from 10DLC long codes returned to normal latency as of 18:30 UTC. Messages delayed during the incident were ultimately delivered; no resend is required.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-09-23 16:42 UTC | Major incident: MMS Delivery Delays to AT&T Destinations (this change) | major |

All Telnyx changes: [timeline](https://rewindex.com/company/telnyx/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/ia52bd96e054b0c · Markdown: https://rewindex.com/change/ia52bd96e054b0c.md · JSON: https://rewindex.com/api/v1/changes/ia52bd96e054b0c · Generated 2026-10-19T21:43:50.667Z