T-Mobile APN Settings
The T-Mobile APN is fast.t-mobile.com. Copy the values below into your phone's APN settings.
Verified October 2026
T-Mobile internet & MMS settings
Tap any value to copy it straight to your clipboard.
How to enter APN settings
Open Access Point Names
Go to
Settings → Network & Internet → Mobile network → Access Point Names. On some phones it's underSettings → Connections → Mobile networks.Add a new APN
Tap + (or the menu → New APN) and set APN to
fast.t-mobile.com. Fill any other non-blank values from the table above and leave the rest as default.Save and select it
Save from the menu, then select the new T-Mobile APN and toggle Airplane Mode on for ten seconds so the change takes effect.
Open the APN screen
Tap
Settings → Cellular → Cellular Data Network. If you don't see this option, T-Mobile locks APN editing, so contact them or install a carrier profile.Enter the APN
Under Cellular Data, set APN to
fast.t-mobile.com. Leave Username and Password blank unless the table above lists them.Save and restart data
Go back to apply the change, then toggle Airplane Mode on for ten seconds so the iPhone re-registers with T-Mobile.
Common issues
MMS won't send or download. Check the MMSC character by character. T-Mobile's is long, http://mms.msg.eng.t-mobile.com/mms/wapenc, and one wrong character stops picture messages while browsing keeps working.
An old guide says epc.tmobile.com. That was T-Mobile's APN for phones without LTE. T-Mobile has switched off 3G and 2G, so use fast.t-mobile.com.
No data after moving the SIM to a new phone. Add fast.t-mobile.com by hand and restart. Unlocked and imported phones often don't set it up on their own. The FOTA entry can stay, and other APNs in the list can go.
5G not showing up. Check that your plan and phone support 5G. The APN is the same for LTE and 5G, so there's no separate 5G setting to enter.
Frequently asked questions
Do I need to enter T-Mobile APN settings by hand?
Usually not. T-Mobile owns its network, and most phones pull the settings automatically. You enter them manually when data or MMS stops working, often after a SIM swap, a factory reset, or moving the SIM into an unlocked phone.
Should I use fast.t-mobile.com or epc.tmobile.com?
Use fast.t-mobile.com. T-Mobile uses it for LTE devices, and epc.tmobile.com for devices without LTE. T-Mobile shut down its 3G network in July 2022 and set August 2026 to finish retiring 2G, so a phone that needs epc.tmobile.com has nothing left to connect to.
How do I know it worked?
Turn off Wi-Fi and open any website. If it loads, data is working. For MMS, send a photo to a friend and confirm it goes through. A quick restart helps if either doesn't start right away.
Does T-Mobile support eSIM?
Yes. T-Mobile supports eSIM. Activation usually sets up the data settings automatically, so you rarely touch the APN on an eSIM line.
Why won't my iPhone let me edit the APN?
Many carriers manage the iPhone APN through a hidden configuration profile, so the fields are locked or missing. That's normal. Resetting network settings re-pulls the profile and fixes most iPhone issues without manual entry.
These settings didn't fix it. What now?
Restart the phone first. If data still won't connect, reset network settings and let the carrier re-provision. If only MMS fails, re-check the MMSC and make sure mobile data is on. APN settings can't fix a deactivated line, an unpaid balance, or a locked phone.
