5GeSIMMNO
O2 APN Settings
Copy-ready access point name values for O2 — verified on real devices, updated regularly.
Auto-provisioning
Many phones on O2 receive APN settings automatically when a SIM is inserted. Only enter these manually if your device shows no data connection or was purchased unlocked.
O2 APN Settings
Tap any value to copy it straight to your clipboard.
APNkey
mobile.o2.co.uk
Username
o2web
Password
password
Authentication
PAP
APN type
default,supl,mms
APN protocol
IPv4v6
APN roaming protocol
IPv4
Bearer
(leave blank)
MCC
234
MNC
10
Setup guide
How to enter APN settings
Tip
After saving, toggle Airplane Mode on and off for 10 seconds. This forces the phone to re-register with the network and pick up the new APN.
Troubleshooting
Common issues
Data works but MMS won't send. Check the MMSC and MMS proxy values exactly, and make sure mobile data is on. O2 routes picture messages through a proxy, so a missing proxy host is a common cause of MMS failing while browsing still works.
No data on an unlocked or imported phone. Enter the APN by hand and restart. Unlocked phones often skip O2's automatic setup, so the APN field starts empty.
Pay as you go line. If you're on PAYG, use the APN payandgo.o2.co.uk with username payandgo instead of the pay monthly value, then restart.
FAQ
Frequently asked questions
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