1. Launch a web browser and visit www.att.com/MicroCell, then click Manage Settings.
   
2. Click on your account type.
   
3. Enter your myAT&T login information, then click Log in.
   
4. Click the desired MicroCell account, then click Continue.
   
5. Scroll to "Your MicroCell Device Location & E911 Information", then click Add a New 3G MicroCell Device Location.
   Note: The new location address must be in an area where AT&T is licensed to provide service.
   
6. Enter the physical address where the MicroCell will be located and click Save.
   
7. The screen will refresh, Scroll back down to the section titled "Your MicroCell Device Location and E911 Information".
   
8. Locate the new address that was added and click activate location. Do NOT click activate location for the address until the MicroCell is physically located at that address.
   
9. To remove a location, click delete next to the desired location.