T-Mobile APN Settings Guide (2025) — Data, MMS & 5G Working Again

“I just switched to T-Mobile, but my phone’s data isn’t working. I think I need the right APN settings. Can someone help?”

This is common when you join T-Mobile or move your SIM card to a new phone.

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T-Mobile is known for simple plans, but you need correct APN settings for mobile internet and MMS. If they don’t auto-populate, here’s how to set them up.

What’s New / Changes (2025)

• APN Protocol and APN Roaming Protocol fields are more important now: many users report issues if these are set to IPv4 only. T-Mobile now supports IPv4/IPv6 in most cases. (T-Mobile Support – APN & Data Settings)
• Carrier settings and configuration profiles on iPhones are more automatic, especially with newer iOS versions. But after major iOS updates, APN/default network settings may reset. (Apple Support – View and edit your APN settings)
• “5G Standalone” and “Voice over 5G Standalone” options: enabling these can sometimes resolve data or call issues on recent iPhones. (user reports on iPhone 15 Pro Max)

The Configuration

If your data still doesn’t work after you’ve entered these settings, make sure they’re spelled correctly. Also, confirm your phone supports T-Mobile’s network bands (especially 5G bands if using 5G). If that doesn’t help, reset your network settings, ensure your phone is unlocked, or contact T-Mobile support.

For Android

1. 1.Settings
2. 2.Connections (or “Network & internet” depending on Android version)
3. 3.Mobile Networks
4. 4.Access Point Names
5. 5.Tap the menu (usually 3 dots)
6. 6.Reset to Default (if needed)
7. 7.Enter the new APN settings below or edit existing one
8. 8.Save, then select the APN you just made or edited
9. 9.Restart the device or toggle Airplane Mode to help the new settings take effect

For iPhone / iPad

1. 1.Settings
2. 2.Cellular or Mobile Data
3. 3.Cellular Data Network or “Mobile Data Network” depending on iOS version
4. 4.Enter the new APN settings below
5. 5.If missing, try also Reset Network Settings: Settings → General → Transfer or Reset → Reset → Reset Network Settings
6. 6.After iOS updates, double-check that settings have not been reverted

Click to expand

T-Mobile APN Settings for Android Devices (2025)

Use these if you have an Android phone, tablet, or smartwatch:

• Name: T-Mobile
• APN:
  • fast.t-mobile.com (for LTE / 5G capable devices)
  • epc.tmobile.com (for some older / non-LTE fallback devices)
• Proxy: <Not set>
• Port: <Not set>
• Username: <Not set>
• Password: <Not set>
• Server: <Not set>
• MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
• MMS proxy: <Not set>
• MMS port: <Not set>
• MMS protocol: WAP 2.0
• MCC: 310
• MNC: 260
• Authentication Type: <Not set> (or “None”)
• APN Type: default,supl,mms (some phones call this “Internet+MMS” or allow multiple tags like ia,hipri if needed)
• APN Protocol: IPv4/IPv6
• APN Roaming Protocol: IPv4/IPv6 (or IPv4 only if using an international roaming network without IPv6 support)
• Turn APN on/off: Grayed out unless multiple APNs configured
• Bearer: Unspecified

T-Mobile APN Settings for iPhone / iPad (2025)

These generally auto-populate. If not, or if you need to manually enter them:

• Cellular Data / Mobile Data (APN): fast.t-mobile.com
• Username: <Not set>
• Password: <Not set>
• LTE / 5G Setup (if your iOS displays optional fields): <Not set>
• MMS:
  • APN: fast.t-mobile.com
  • MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
  • MMS Proxy: <Not set>
  • MMS Max Message Size: 1048576
  • MMS UA Prof URL: http://www.apple.com/mms/uaprof.rdf
• Personal Hotspot (if visible): APN = pcweb.tmobile.com, Username / Password = <Not set>

Default / Fallback T-Mobile APN Settings

If the above don’t seem to work, try these for basic phones, Windows phones, or older handsets:

• Internet + Picture Messaging + MMS
  • APN: fast.t-mobile.com
  • MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc

Extra Troubleshooting & Tips

• After saving APN settings, restart your phone, or toggle Airplane Mode for ~10-20 seconds. This helps force the phone to re-register with the network.
• Check for carrier settings updates on iPhone: Settings → General → About. Sometimes a carrier profile is pushed automatically that updates or corrects APN or network-related parameters. (Apple’s APN article)
• Make sure your phone supports the necessary frequency / band for LTE / 5G in your area. Even with correct APN, if hardware doesn’t support a band, you may get poor or no connectivity.
• Ensure your SIM is properly seated, undamaged, and that your device is unlocked (if you switched carriers). Locked devices may restrict APN / network behaviours.
• Enable “5G Standalone” and “Voice over 5G Standalone” (if available on your device) when on T-Mobile, to ensure best use of 5G infrastructure. Some users report that data / call / SMS fallback issues resolve when these are turned on. (Reddit discussion)
• If roaming internationally, consider that some roaming partners may require you to toggle APN roaming protocol to IPv4 only, or use a specific roaming APN. T-Mobile’s base APN usually works though.
• After updates (especially major OS updates like iOS or major Android), check APN settings again in case defaults have been reset.

FAQs

What if my phone still won’t connect after entering these APN settings?

Try resetting your network settings (on Android or iPhone), ensure mobile data is turned on, check that you are on a valid T-Mobile network (signal strength), check your plan is active, and verify your phone is unlocked. If nothing works, contact T-Mobile support.

Do I need a special APN for 5G on T-Mobile?

Generally, no. The same APN (fast.t-mobile.com) works for LTE, 5G (non-standalone or standalone), for data and MMS. What matters more are settings like APN Protocol = IPv4/IPv6 and having the correct network mode enabled. If you have a 5G-only device or advanced features, check your carrier options on your phone.

How do I update APN settings on a Windows Phone or other older OS?

The settings UI may differ: look for something like Settings → Network & Wireless → Cellular & SIM → SIM settings or Access Point Names. Use the Android/APN values above. If parts of UI are missing (e.g. MMS proxy/port), leave them blank/not set.

Will these settings let me send MMS?

Yes. The MMSC address, APN Type = default,supl,mms (or Internet+MMS), and correct MMS protocol ensure both data and MMS work properly. Make sure to enable mobile data even when roaming if MMS doesn’t work while roaming.

Why do iPhone users see slightly different APN fields?

iPhones group settings under Cellular Data, MMS, and Personal Hotspot. Also recent versions of iOS may hide or auto-fill some carrier fields. Make sure each required field (especially APN / MMSC / MMS fields) is properly filled. If fields are missing, try getting a carrier profile or contacting carrier support.