Three APN Settings

Three APN Settings

If your mobile data or MMS has stopped working on Three (3), you may need to manually enter the correct APN settings. Below are the current Three UK APN settings for data and picture messaging.

Three APN Configuration

How to Enter Three APN Settings on Android

1. Open Settings on your Android phone.
2. Tap Connections (Samsung) or Network & Internet (Pixel/stock Android).
3. Tap Mobile Networks.
4. Tap Access Point Names.
5. Tap the + icon to add a new APN.
6. Enter the Three settings from the table above. Leave Username and Password blank.
7. Tap the three-dot menu and select Save.
8. Select the new 3 APN from the list.
9. Restart your phone to apply the changes.

How to Enter Three APN Settings on iPhone

1. Open Settings.
2. Tap Mobile Data (or Cellular).
3. Tap Mobile Data Network.
4. Under Mobile Data, enter:
   APN: three.co.uk
   Username: (leave blank)
   Password: (leave blank)
5. Scroll down to MMS and enter:
   MMSC: http://mms.um.three.co.uk:10021/mmsc
   MMS Proxy: mms.three.co.uk:8799
6. Go back — settings save automatically on iPhone.
7. Toggle Airplane Mode on and off, or restart your phone.

Note: Three iPhones often receive APN settings automatically via a carrier profile. If you cannot see the Mobile Data Network option, go to Settings > General > About and wait for a carrier update prompt.

Three Business Plans

Three business customers use the same APN settings as consumer plans. If you're managing a fleet of business mobiles on Three, these settings can be pushed to all devices using Mobile Device Management (MDM) software.

For more help, see our mobile data troubleshooting guide.

Managing multiple business devices? Connection Technologies can configure APN settings across your entire fleet. Get a free quote or call 0333 015 2615.