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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

International calling

Find out about calling international numbers from the UK

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Network and coverage

Learn about our network tech, check your coverage and find out about any issues in your area

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Other numbers and charges

A guide to some numbers that are outside your monthly inclusive call allowance

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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.

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WiFi

Find out more about O2 WiFi, personal hotspots, staying connected on the London Underground and more

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