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AT&T, T-Mobile, and Verizon's International Roaming Disruptions: A Comprehensive Analysis

In a recent global telecommunications disruption, AT&T, T-Mobile, and Verizon, three leading U.S. wireless carriers, experienced significant outages affecting international roaming services for their subscribers. This widespread disruption has left travelers stranded without reliable communication options abroad.

Affected Countries and Services

The outage impacted multiple countries and territories, including Canada, Mexico, Europe, Asia, and the Caribbean. Subscribers in these regions were unable to make phone calls, send text messages, or access data services while roaming on foreign networks.

Cause of the Outage

An exact cause for the outage has not been officially confirmed by the carriers. However, preliminary investigations indicate that the disruption was related to a technical issue affecting a key infrastructure component used to facilitate international roaming.

Timeline of Events

The outage began on the evening of November 21, 2022, and persisted for several hours. By the following morning, most services were gradually restored, although some users continued to experience intermittent disruptions.

Impact on Travelers

The outage caused significant inconvenience and distress for travelers who rely on their mobile devices for communication and navigation while abroad. Many were unable to contact family and friends back home or access essential services such as ride-hailing and local information.

Carrier Responses

The three affected carriers have issued statements acknowledging the outage and apologizing for the disruption. They have also provided updates on their efforts to resolve the issue and restore normal service.

Advice for Travelers

In light of the recent outage, travelers are advised to take the following precautions:

  • Check with your carrier before traveling to confirm international roaming availability and potential restrictions.
  • Consider purchasing a local SIM card at your destination as a backup communication option.
  • Use Wi-Fi whenever possible to avoid relying solely on cellular networks for communication.
  • Notify your contacts of any potential communication disruptions and provide alternative contact methods.

Lessons Learned

The recent international roaming outage highlights the importance of redundant infrastructure and robust backup systems in the telecommunications industry. As travelers become increasingly reliant on mobile devices, carriers must prioritize the reliability and resilience of their roaming services.

Ongoing Investigations and Resolution

The affected carriers are continuing to investigate the cause of the outage and implement measures to prevent similar disruptions in the future. They are working closely with their international partners to ensure the smooth operation of roaming services.


The international roaming outage experienced by AT&T, T-Mobile, and Verizon is a reminder of the challenges faced by global telecommunications providers in delivering seamless and reliable services. While carriers strive to mitigate such disruptions, travelers should take precautions to ensure alternative communication options while abroad.

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