Troubleshoot wireless call issues

Find out what to do if you can't make or receive calls on your AT&T mobile phone.

Try these tips to get your phone working again

Turn your phone off and back on.
Try calling the number again.
Make sure your device software is up to date.
Confirm you have wireless service. Make sure you have a signal. Check our network coverage map.
Turn off call forwarding. Press #21# on your phone and then the Call, Send, Talk, or Receiver key.
Check that you aren’t blocking calls.

More troubleshooting tips

Turn off airplane mode. Most phones show an airplane icon when airplane mode is on.
Check your SIM card. You may have to take it out and put it back in if your phone displays Insert SIM or Emergency Call Only.
Get device support.
Service suspended? Find out how to reactivate your wireless service.
See a list of blocked calls and why they were blocked with AT&T ActiveArmor^SM. Learn more about AT&T ActiveArmor

Last updated: August 26, 2025

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