Outage in Telnyx

AT&T 10DLC MMS Delivery Receipt Delays

Resolved Minor
December 01, 2025 - Started 6 days ago - Lasted 2 days
Official incident page

Incident Report

We are currently investigating this issue.

Need to monitor Telnyx outages?

One place to monitor all your cloud vendors. Get instant alerts when an outage is detected.

Start Free Trial
Latest Updates ( sorted recent to last )
RESOLVED 3 days ago - at 12/04/2025 05:27AM

This incident has been resolved.

MONITORING 4 days ago - at 12/03/2025 04:18PM

A fix has been implemented and we are monitoring the results.

INVESTIGATING 4 days ago - at 12/03/2025 01:07AM

We're noticing a delay in receiving delivery receipts over MMS with AT&T which appears to be related to periods of high traffic.

We continue to escalate this issue with our downstream partners and will provide updates when the issue has been identified in a timely manner.

Our downstream partner continues to investigate the issue on their side. We will provide updates as we receive them.

INVESTIGATING 5 days ago - at 12/01/2025 11:38PM

We're noticing a delay in receiving delivery receipts over MMS with AT&T which appears to be related to periods of high traffic.

We continue to escalate this issue with our downstream partners and will provide updates when the issue has been identified in a timely manner.

INVESTIGATING 6 days ago - at 12/01/2025 07:23PM

10DLC MMS messages towards AT&T issues with receiving delivery receipts.
We're investigating MMS messages towards AT&T not receiving delivery receipts in a timely manner.

INVESTIGATING 6 days ago - at 12/01/2025 06:42PM

We are currently investigating this issue.

Latest Telnyx outages

Outage of Wireless HTTP API service - 2 days ago
AT&T 10DLC MMS Duplicate Messages - 5 days ago
Data Connectivity Issues on IMSI1 and IMSI2 - 10 days ago
SMS failures to Netherlands destination - 11 days ago
SIM Actions delayed - 12 days ago

Status Aggregator for All Your Third-Party Services

With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.

Start free trial

No credit card required · Cancel anytime · 4600 services available

Integrations with Slack Microsoft Teams Google Chat Datadog PagerDuty Zapier Discord Webhook