NEW YORK (AP) — AT&T says the shutdown of its “2G” wireless network will be complete by the end of 2016, a process that will force customers with older phones to upgrade to “3G” or “4G” handsets.

AT&T said in regulatory filing Thursday that’s shutting down the older network, which doesn’t support high data speeds, city by city. It said earlier this year that the process has started in New York City, and it’s trying to move 2G subscribers to new phones.

Recommended Stories

What ‘never again’ actually requires

Voters prefer Democrat-controlled Congress days before elections, poll shows

Sen. Dan Sullivan vows to accept Alaska election results if defeated