Most phones set AT&T's APN automatically. Unlocked and imported phones sometimes don't, which leaves calls working while data or picture messages fail. These are the values AT&T publishes on its support site.
Check these first
- Restart the phone with the SIM or eSIM installed. Most phones request carrier settings again on boot.
- Confirm mobile data is on, airplane mode is off, and the right line is set for data on a dual-SIM phone.
- Make sure activation finished in the carrier's app. A pending activation looks like an APN problem.
AT&T APN settings
| Setting | Value |
|---|---|
| Name | NXTGENPHONE (LTE phones) · ENHANCEDPHONE (5G phones) |
| APN | NXTGENPHONE or ENHANCEDPHONE |
| MMSC | http://mmsc.mobile.att.net |
| MMS proxy | proxy.mobile.att.net |
| MMS port | 80 |
| MCC | 310 |
| MNC | 410 |
| APN type | default,mms,supl,hipri |
| APN protocol | IPv4 |
- 5G standalone phones: AT&T lists NRPHONE as the APN, with MMSC and MMS proxy left blank and APN type default,mms,supl,hipri,fota.
- Tablets and hotspots: APN Broadband, no MMS fields.
Where to enter them
- Android: Settings > Network & internet > SIMs > Access Point Names, then add a new APN. On Samsung: Settings > Connections > Mobile networks > Access Point Names.
- iPhone: Settings > Cellular > Cellular Data Network. This menu only appears when the carrier allows it; most iPhones set the APN automatically.
- Leave any field not listed blank, save, select the new APN, and restart.
If it still won't connect
Reset network settings, restart, and try again. If data still fails, the phone may be locked to another carrier or missing AT&T's bands. Check the lock status before spending more time on APN fields.
Cricket and AT&T Prepaid use the same network from $20–$25/mo.
Best AT&T MVNO plans →Frequently asked questions
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Jean Gilles has researched personal finance, consumer technology, and wireless pricing for over a decade. He founded ShopCellPlans in 2019 and writes every review on the site.