EM-20261029-18LX
OutageHigh severity
AT&T: Service Problems
Oct 29, 2026 · Carrier · reported by Provider status pages (Statuspage), Vonage
Status
Resolved
Since : 24 hours with no new signal.
- First Signal
- Oct 29 17:54 UTCC123 Provider status pages (Statuspage)
- Page Born
- Oct 29 20:17 UTCsecond source joined
- Last Signal
- Oct 29 21:57 UTC6 days before snapshot
- Sources
- 22 official · 0 research, news or crowd
- Lasted
- 28 hoursfirst signal to resolved
Life Of This Page
- 1BornA second, independent provider or measurement sees it.
- 2DevelopingReports and measurements join.
- 3ConfirmedA provider status page acknowledges it.
- 4Resolved · NowEvery provider marks it resolved and 6 hours pass quietly, or 24 hours pass with no new signal.
- 5ArchivedNot yet30 days after resolved. Read only; the link keeps working. Reopens if it comes back.
The address and ID never change. A correction is logged, never overwritten. If two pages turn out to be one incident, the later one points to the earlier.
Outage Lifecycle
- First Report: reachedOct 29 17:54 UTCC123 Provider status pages (Statuspage)
- Corroborated: reachedOct 29 20:17 UTC2 independent sources
- Acknowledged: reachedOct 29 17:54 UTCC123 status page
- Network Check: reachedOct 29 17:54 UTCC111 IODA: network normal (lowest 99.7%)
- Restored: reachedOct 30 21:57 UTCAll status incidents resolved
Timeline
Point at a mark to read it. Squares are signals, colored by severity; every one is also listed under Signals.
AT&T Network During The Incident
Solid blue line: routes announced. Dashed amber line: networks answering pings. Both as a share of AT&T's normal, from C111 IODA, lowest reading in each 2 hours; the shaded band is the incident. The network itself stayed at normal (lowest 99.7%): the problem was in the service, not the network.
Signals
- Vonage: USA SMS/MMS - Delivery degradation affecting SMS and MMS traffic toward AT&T operator (opens source in a new tab) resolved. This incident has been resolved. Med severityProvider StatusT21 Vonage status
- Vonage: USA SMS/MMS - Delivery degradation affecting SMS and MMS traffic toward AT&T operator (opens source in a new tab) monitoring. A fix has been implemented and we are monitoring the results. Med severityProvider StatusT21 Vonage status
- Vonage: USA SMS/MMS - Delivery degradation affecting SMS and MMS traffic toward AT&T operator (opens source in a new tab) investigating. Please be advised that we are observing partial latency in SMS and MMS message delivery on AT&T operator in USA.. We are working towards resolution of the issue and will issue an update as soon as more inf… Med severityProvider StatusT21 Vonage status
- Clerk: SMS Delivery I ue (opens source in a new tab) investigating. We’ve identified an issue with an upstream SMS provider’s delivery route to AT&T numbers. The provider is switching traffic to an alternate route. We’re monitoring delivery rates and will share updates as … High severityProvider StatusC123 Provider status pages (Statuspage)
- Clerk: SMS Delivery I ue (opens source in a new tab) investigating. We're continuing to investigate SMS delivery issues with an upstream vendor impacting users on AT&T. High severityProvider StatusC123 Provider status pages (Statuspage)