Carriers are closing down 3G networks in a final transition to 4G LTE and 5G. Some devices and services won't make the jump. Here's what to know.

AT &T is shutting down its 3G networks as part of a greater effort to re-use the spectrum for 4G and 5G - newer standards that are more efficient than 3G.

Some industries are better set up to handle the change. Many home security companies, for example, have been migrating their subscriber bases from 3G to 4G over the past two years.

ISPs that think they can support 3G and 4G standards using their current backhaul capabilities need to think again, said several experts at this week’s CTIA Wireless event. During a day-long ...

Then a year ago, AT&T began sending him emails that the company would be shutting down its 3G network and moving its subscribers to its higher-speed 4G and 5G networks.

Some industries are better set up to handle the change. Many home security companies, for example, have been migrating their subscriber bases from 3G to 4G over the past two years.

Although 3G (short for third generation) started giving way to 4G a decade later, the networks still provide the backbone for older mobile phones and a host of other devices.

Canadian providers are gradually disabling the 3G network to free up frequencies and invest in 4G/5G networks. These faster and more energy-efficient networks improve call quality (via VoLTE ...