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T-Mobile outage affects hundreds of thousands, restored next day

7/28/2026

50 11 Full Breakdown

Summary

T-Mobile Outage

The outage began 4 p.m. ET on July 27, 2026, putting phones in “SOS” mode and stopping calls, texts, and data for T-Mobile and its MVNOs.
DownDetector logged over 60,000 reports by 4:39 p.m. ET and peaked above 140,000 that night.
Verizon and AT&T reported normal operation with complaints, while T-Mobile said its teams were working to restore service.
By July 28, 2026 T-Mobile announced on X that service was fully restored, without giving a cause.

Summary

T-Mobile Advises

T-Mobile instructed users in SOS mode to dial 911, which routes through another carrier or satellite network.
Apple recommended toggling Airplane Mode for about 15 seconds before re-enabling service to force a network reconnection.
DownDetector reported hotspots in New York City, New Jersey, Los Angeles, Chicago, Detroit, Minneapolis and Denver, with over 3,000 reports from New York City.

Summary

T-Mobile Stats

The outage began around 4:00 p.m. ET and affected users in Arizona, California, Georgia and Utah.
Downdetector logged a peak of 62,000 incident reports, which declined to about 21,200 by 6:05 p.m. ET.
Because Downdetector aggregates data from many online sources, its figures are estimates rather than exact counts of affected customers.

History

Historical Context

After a software-upgrade failure crippled T-Mobile’s network in August 2016, sparking 2.1 million FCC complaints and 120,000 outage reports, the carrier has endured similar glitches—including a February 2023 nationwide loss—while rivals Verizon and AT&T stayed online. The July 2026 outage has prompted the FCC to draft tougher resilience standards aimed at hardening core software across U.S. mobile infrastructure.

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T-Mobile Outage

The outage began 4 p.m. ET on July 27, 2026, putting phones in “SOS” mode and stopping calls, texts, and data for T-Mobile and its MVNOs.
DownDetector logged over 60,000 reports by 4:39 p.m. ET and peaked above 140,000 that night.
Verizon and AT&T reported normal operation with complaints, while T-Mobile said its teams were working to restore service.
By July 28, 2026 T-Mobile announced on X that service was fully restored, without giving a cause.

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