AT&T has apologised for issuing an email warning customers their 3G phones will stop working.

According to Statista, around 80 percent of connections in North America are now 4G. With the number of 3G connections being ebbed away by 4G and even 5G, it makes sense that AT&T is thinking about when to switch off its legacy network.

Here’s the email sent by AT&T to its 3G customers:

Naturally, the email had customers concerned their phones were...