AT&T announced on Tuesday that it has started to phase out its 3G network, as the move will impact older cell phones and even some roadside assistance programs.
The company is shifting its focus to the expansion of more modern 4G and 5G networks like many other cellular carriers. Verizon and T-Mobile have already announced future dates for shutdowns of their 3G networks.
"For nearly two years, we've proactively sent numerous communications via direct mail, bill messaging, emails and text messages to help customers transition to next generation networks before 3G services end on February 22," AT&T said in a statement to CNN Business.
AT&T put out a list of phones that will still work after they end 3G service. For example, an Apple phone older than iPhone 6 and a Samsung phone older than the Galaxy S5 will no longer be able to get service.
Users that are unsure if their device will still be able to connect to the internet can check the cellular data or mobile network settings on their phones. The Federal Communications Commission put out a guide for people on what to do if they are affected by the 3G network shutdown.
"Some devices may only require a software update to enable VoLTE (HD Voice) or other advanced services," the FCC said. "If you purchased your phone independent of a mobile provider, you should be able to check whether your device is 4G LTE (with VoLTE or HD Voice) enabled by checking your phone's settings or user manual, or by searching your phone's model number on the internet, to determine whether you need to purchase a new device or install a software update."
Carriers may offer discounted or even free upgrades for people who's devices will no longer be able to get service.
Certain home alarm systems and in-car crash notification and roadside assistance programs like OnStar will need to be either replaced or updated. Even devices like a medical emergency fall detector may need to be updated or replaced.
Despite the shutdown, it appears that not many users will be affected. AT&T told the FCC in September that only 2.7% of subscribers still rely on "3G-idependent devices," according to NBC New York.
The FCC added that phasing out 3G networks for the advance of 4G and 5G networks should come as no surprise, as many carriers ended their 2G networks for the advancement of 4G. AT&T ended their 2G network coverage in 2017 after almost all of their users were covered by 3G and 4G networks.
"For example, some mobile carriers shut down their 2G networks when they upgraded their networks to support 4G services," the FCC said. "Mobile carriers have the flexibility to choose the types of technologies and services they deploy, including when they decommission older services in favor of newer services to meet consumer demands."
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