Call won't go through to certain number

Hello @Ttiadavis, we hope everything is going well with you!

Thank you for reaching out to us with your concern, we are here to help. 

We recommend you to follow the below troubleshooting steps to get your phone working again:

• Turn your phone off and back on.
• Try calling the number again.
• Make sure your software’s up to date: Go to att.com/softwareupdates. 
    (https://www.att.com/device-support/selector)
• Confirm you have wireless service. Make sure you have a signal. Check our network coverage map. 
    (https://www.att.com/maps/wireless-coverage.html?source=IC2Y0H0000000000L&wtExtndSource=wireless-map)
• Turn off call forwarding. 
    (https://www.att.com/support/article/wireless/KM1011513). 
    Press #21# on your phone and then the Call, Send, Talk, or Receiver key.
• Check that you aren't blocking calls.
    (https://www.att.com/device-support/selector/?invalidModel=undefined)

Visit our wireless support article and select "Fix an Issue" (https://www.att.com/support/topic/wireless/). Then choose your device and navigate to Connection>phone calls and allow the troubleshooting to began. This tool will provide you with our top solutions.

Learn how to troubleshoot wireless call issues by visiting the below link.

(https://www.att.com/support/article/wireless/KM1062174#:~:text=Try%20these%20tips%20to%20get%20your%20phone%20working,key.%206%20Check%20that%20you%20aren%E2%80%99t%20blocking%20calls.)

We hope the above-mentioned troubleshooting steps alleviate your concern! Please do let us know if you require any further assistance.

Thank you for contacting AT&T Community Forums.

Rachel, AT&T Community Specialist.

It might mean you’re blocked 🥶 have you asked them if they have you blocked?