Network and international
Help and support
Network and international
Check your coverage, learn more about our network, and find out about calling abroad or using your phone overseas
Using your phone abroad
Use your data (up to 25GB), minutes and texts at no extra cost in our Europe Zone. If you’re going further afield, we’ve made it easier than ever to stay in touch with our O2 Travel Bolt On.
International calling
Find out about calling international numbers from the UK
Network and coverage
Learn about our network tech, check your coverage and find out about any issues in your area
WiFi
Find out more about O2 WiFi, personal hotspots, staying connected on the London Underground and more
Other numbers and charges
A guide to some numbers that are outside your monthly inclusive call allowance
