Frequently Asked Questions
Does O2 support 5G?
Yes, O2 offers 5G coverage. At the time of writing O2’s 5G is live in 155 cities & towns.
Does O2 have Wi-Fi Calling?
Yes, O2 has Wi-Fi Calling. To benefit from this feature you have to be on a SIM Only contract and your device must be compatible.
Does O2 have 4G Calling?
Yes, O2 has 4G Calling. The network provides a VoLTE service, but you’ll have to be on a SIM Only plan and your handset must support this feature.
Is O2 Priority free?
Yes, O2 Priority is a free loyalty programme exclusively for O2 customers. However, while you’re on the app you’ll be using data.
Why can’t I access O2 Priority?
If you recently joined the O2 Network, it might be that Priority’s database hasn’t caught up yet, so your number might not be recognised. If it doesn’t work in a couple of days contact O2’s customer support.
How long does it take for a number to transfer on O2?
It shouldn’t take any longer than 24 hours. Usually you’ll be able to make phone calls with a couple hours, however texting might take longer. If you still can’t use your new SIM after 24 hours please contact O2’s customer support.
How long does it take for Amazon referral vouchers to arrive on O2?
The Amazon voucher reward will be sent to both parties within 3 months from your referred friend’s connection.
How fast is O2’s 4G internet?
According to Open Signal’s April 2020 reports O2’s average 4G download speed is around 16.6Mbps and average upload speed is measured at 5.8Mbps.
Can I keep my number when switching to O2?
Yes, you can. It’s quite easy to keep your number. All you need is a unique PAC (Porting Authorisation Code) code, which you can get from your old network. You’ll deliver this code to O2 and they will do the rest.
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