It sounds like a tech history footnote, but T-Mobile has been running a 2G GSM network in 2026. That ends on August 3, when the carrier will officially pull the plug on the decades-old technology. A company spokesperson confirmed the shutdown date to Fierce Network, pointing to T-Mobile’s Network Evolution support page where the retirement date is published.
The news arrives at an awkward moment for T-Mobile. This week the carrier also began notifying customers that their older 3G and 4G-era rate plans are being moved to newer 5G plans, which in many cases cost more. That move has already sparked backlash on Reddit and social media. Shutting down 2G on top of that adds to the sense that T-Mobile is aggressively cleaning house on older technology.
By any measure, T-Mobile held onto 2G far longer than its rivals. AT&T shut down its 2G network back in 2017, and Verizon followed around 2020. Carriers typically retire older networks to free up spectrum for newer generations. So why did T-Mobile wait this long?
The company says it had two specific reasons to keep 2G running after everyone else had moved on:
- Legacy device support: When AT&T and Verizon shut down their 2G networks, some customers and IoT device operators still needed GSM coverage. T-Mobile stepped in to fill that gap while those users transitioned.
- International roaming: A portion of travelers arriving in the US from other countries had LTE data enabled but no VoLTE support, meaning they still needed circuit-switched (CS) technology for voice calls. T-Mobile spent roughly two and a half years working with carriers globally to close that gap.
T-Mobile Chief Network Officer Ankur Kapoor said the carrier did not want to leave customers stranded. Now that those roaming issues are resolved and virtually no one is left on 2G, the network is finally coming down. The remaining user base is described as “de minimis” and made up almost entirely of legacy IoT devices. The company says those users have been notified and given time to migrate.
The 2G shutdown also brings back memories of a messier network retirement from T-Mobile’s recent past. When T-Mobile acquired Sprint in 2020, it inherited Sprint’s 3G CDMA network, which was still supporting Boost Mobile customers under Dish Network. T-Mobile moved to shut that network down much faster than Dish anticipated, creating a serious dispute over customer migration timelines. The two sides eventually reached a resolution, but the conflict became an early sign of the financial and operational trouble that would follow Dish into bankruptcy.
Dish filed for Chapter 11 bankruptcy protection this week. The company pointed to an FCC investigation into its 5G network buildout and spectrum usage as a key factor in its failure. Its Boost Mobile and Gen Mobile brands are not included in the bankruptcy filing.
For T-Mobile, the 2G shutdown is a straightforward network cleanup. The spectrum freed up from GSM can be refarmed for 5G use, which is standard practice across the industry. What makes this moment notable is the timing: T-Mobile is now actively retiring technology on multiple fronts at once, and not all of its customers are happy about it.