16/09/2021 · Once the SIM is active, you’ll be able to place phone calls and use the internet. If you’re unable to activate the card online, you can give AT&T a call from a working phone or visit an authorized AT&T store during regular business hours. AT&T support is available 24/7. If you’re in the US, dial 1-800-331-0500.
30/05/2019 · • If you’re transferring your number to AT&T, call 866.895.1099 to accept the Terms & Conditions and activate your new SIM card. • If you’re not transferring your phone number to AT&T, to activate your new SIM card, call 800.331.0500. It will connect you to AT&T customer care. 7. You can make the call from another phone if you want. 8. Press the button according to the recorded voice …
If you want to use a new SIM in your AT&T mobile phone, you’ll have to activate it first. After that you can use it with your phone. To do this you have to make a call to AT&T Customer Service.
What do I do if I can’t activate my AT&T card?
If you’re unable to activate the card online, you can give AT&T a call from a working phone or visit an authorized AT&T store during regular business hours. AT&T support is available 24/7. If you’re in the US, dial 1-800-331-0500. If you’re outside of the US, dial 1-314-925-6925.
How do I Activate my AT&T eSIM card?
Have an AT&T PREPAID plan? Contact us to activate your eSIM. For AT&T Wireless, make sure the eSIM is on an active plan, then download it over Wi-Fi ®. Go to your device settings. Have a QR code printed on an AT&T eSIM card?
With the device off, open the SIM card tray and insert the SIM card. Use the order confirmation email to see which SIM card goes in which device. Here’s a short video to guide you through the process. Activate the SIM card. For the best 5G experience, we don’t recommend using your previous SIM card.