AT&T shut down its 2G network in January 2017 and it is preparing to do the same with its 3G network in February 2022. However, some of its subscribers still have 3G-only phones, so the company is offering free replacements. Infographics about AT&T's transition away from 2G and 3G Subscribers are supposed to ask for one if they want it, but the carrier seems to have taken a proactive approach and sending out replacement phones whether people asked for them or not. And they are not bad phones either. Some have received a Samsung Galaxy Note9, others a Note10 or S9, others still...
Source: https://www.gsmarena.com/at_t_is_sending_out_replacement_phones_to_people_still_using_3gonly_models-news-50835.php
