Having worked at the BBC and in commercial radio before joining Which?, James produces our always-on podcasts, and oversaw the launch of our member-exclusive podcasts in 2025. Save article Set as ...

Getting a PAC (Porting Authorisation Code) is the key to keeping your number when you change mobile networks, and in this guide we’ll look at the whole number porting process with regards to O2. First ...

We spoke to four people who’ve been impacted by O2’s new price hikes to find out what they’re planning to do next Adam covers home improvements and mobile networks, splitting his time investigating ...

If you've just got your hands on a shiny new Sim card, congratulations. Switching your Sim (the chip that dictates your allowance) can unlock huge savings. Now comes the crucial step of activating it ...

Mobile network provider O2 has issued a new, urgent warning to help customers stay vigilant against thieves amidst a recent “increase” in fraudulent activity. Article continues below ADVERTISEMENT We ...

It's the time of year when new smartphone launches are in full swing, with the iPhone 16, Galaxy Z Flip 6 and Pixel 9 all competing for space in our pockets. If you're considering an upgrade, there's ...

O2, the UK mobile network giant, has just dropped some crucial advice for smartphone users across the UK, and it's a warning that should not be taken lightly. The telecoms firm, which connects ...

You need a PUK code to unlock your phone, but how does it work and where do you find it? Here’s what you need to know. A PUK (personal unlocking key) code is a code that helps you unlock your mobile ...

Changing mobile network can be a great idea if you want to take advantage of new customer offers, or simply find a network that’s more appealing than the one you’re on. These days it’s also a simple ...

The telecoms regulator, Ofcom, has today braced the industry for the introduction of their new “Text-to-Switch” (Auto-Switching) system for UK mobile operators like Vodafone, O2, Three UK and EE, ...

Mobile phone customers will be able to 'text-to-switch' providers from today – meaning they won't have to speak to their current provider to cancel their contracts. Currently you have to phone your ...