O2 Network Coverage Checker

O2 runs on it's own network

Check O2 coverage in your postcode area

2G Network Yes
2nd generation network. Max data speed of 0.3 Mb per second.

3G Network Yes
3rd generation network. Max data speed of 42 Mbps.

4G Network Yes
4th generation network. Max data speed of 1 Gbps (1000 Mb/s).

5G Network Yes
5th generation network. Max data speed of 10 or 20 Gb/s.

WiFi Calling Yes
Use Wi-Fi for mobile phone calls and texts when no network signal.

4G Calling (VoLTE) Yes
Voice over LTE (4G Calling) makes clearer HD calls over 4G networks.

Data Rollover No
Unused mobile data allowance rolled over from one month to the next.

Tethering Allowed Yes
Tethering allows you to share your mobile internet with other devices.

This is a list of radio frequency bands available to O2 on the O2 network. You can check which radio frequencies are compatible with your mobile phone device by referring to the technical specifications of your particular handset model.

Network 5G (NR)4G (LTE)3G (UMTS)2G (GSM)
O2 3500 MHz 800 / 900 / 1800 / 2100 / 2300 MHz 900 / 2100 MHz 900 MHz

O2 is a mobile network operator and telecommunications services provider in the United Kingdom, under the company name of Telefonica UK Limited. The company was originally formed in 1985 as Cellnet by the BT Group and was one of the earliest mobile phone networks to launch in the UK, and later rebranded as O2 UK.

02 is one of the largest network operators in the UK and provides 2G, 3G, 4G and 5G services to millions of customers in the United Kingdom, as well as to other mobile virtual network operators (MVNO).