Ready to activate ATT in Minutes?
Activating your AT&T service online is quick and easy. Whether you have a new phone, SIM card, or prepaid plan, follow the steps below to complete Att activate successfully.
Steps to Activate AT&T Online
Turn on your AT&T device
Make sure your phone or tablet is fully charged.
Insert the AT&T SIM card
If you’re using a physical SIM, insert it properly into your device.
For eSIM, ensure your device supports eSIM activation.
Connect to the internet
Use a stable Wi-Fi connection or mobile data to avoid interruptions.
Visit the AT&T activation page
Open a web browser and go to the official Att activate activation page.
Enter your activation details
You may be asked to provide:
AT&T phone number or SIM number
Order or account number
ZIP code or billing details
Follow the on screen instructions
Confirm your information and submit the activation request.
Restart your device
Restarting helps apply Att activate network settings correctly.
Choose your prepaid plan
Complete the first payment
Confirm your number and device
Restart your phone after activation
Prepaid AT&T online activation usually completes within minutes.
Most devices: 5–10 minutes
Number transfer or prepaid: Up to 24 hours
You’ll receive a confirmation once activation is complete.
Keep your SIM number, order ID, and billing ZIP code ready before starting Att activate online activation for a smooth and fast setup.