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Data settings for 12-Key or Quick Messaging non-AT&T device

Learn how to program your 12-Key or Quick Messaging device with the correct AT&T APN and MMS data connection settings to use 4G (HSPA+)/4G LTE data services.


Verify SIM & data plan compatibility

To use AT&T 4G (HSPA+) or 4G LTE data services, you may need to program your data settings for a compatible, non-AT&T device, like an unlocked device from another carrier or a device purchased directly from the manufacturer.

Verify the device has a compatible SIM card and data plan before changing the data settings. This may resolve data connection issues without requiring any changes to your data settings:
  1. To verify SIM card compatibility:
    • You should already have the correct type SIM card if you recently purchased it new from AT&T or an authorized retailer. 
    • If you are using a SIM card from some other source or if you moved an active SIM card to a new device, verify SIM compatibility with 4G (HSPA+)/4G LTE data
  2. To verify data plan compatibility:
    • If you moved an active SIM card to a new device and did not notify us of that change, your existing data plan might not be compatible. 
    • To update the device information on the account and make any required rate plan changes, the account holder or authorized user can contact us.
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Program data settings for 12-key or Quick Messaging non-AT&T device

Programming options are usually located in the network settings menu. Refer to your user guide or contact the device manufacturer for assistance programming your device using the settings below.

Cellular Data/Internet Access MMS  
Mobile Internethttp://device.home Gateway 
Protocol HTTP Port 80 
Proxy Address MMSC/Server address 
Proxy Port 8080 Connect via Mobile Internet 
Linger time/time out 300 Send Limit 600k 
      Service Name MMS 
User ID Leave blank 
Password Leave blank 
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Troubleshoot AT&T device data settings

If you are using an AT&T device, it should already have the correct settings. If you're having trouble accessing data services, visit Troubleshoot & Resolve to fix internet issues with your AT&T device.
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