AT&T plans to permanently shut down all 3G services as they say they are making room for their new 5G services.
Starting Tuesday, all devices using the 3G service will no longer work.
The changes could impact millions, according to AP.
Many older flip phones, medical alert devices and home alarm systems still rely on the 3G services and will no longer work come Tuesday. According to AP, 1.5 million families still have a 3G home alarm system that needs to be upgraded.
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