How to switch mobile service providers
Switching mobile service providers in the UK is easy with Ofcom's text-to-switch process. Simply check your contract status by texting "INFO" and request a PAC or STAC code via text to keep your number or get a new one.

Staying connected is more important than ever, and choosing the right mobile service provider plays a key role in ensuring seamless communication. Whether you’re looking for better coverage, improved customer service, or a more cost-effective plan, switching mobile providers in the United Kingdom can be a straightforward process if done correctly.
What to do before switching mobile providers
Before making the switch, it is essential to review your current mobile phone services you pay. This ensures a smooth transition without unexpected charges or disruptions to your service.
How to check your contract status?
Your first step should be to check your contract status with your current provider. Most mobile carriers offer this information through their online portals or customer service helplines. Look for details about early termination fees, outstanding payments, and the contract end date.
Do I need a new SIM if I change providers?
Yes, switching to a new provider usually means getting a new SIM card. However, some mobile service providers offer eSIM options, allowing for a digital transfer without the need for a physical card.
Do I need to cancel my phone plan before switching?
No, cancelling your plan before switching can result in losing your mobile number. The best approach is to initiate the switch first, ensuring your new provider takes care of the transfer process.
What company will pay off my phone if I switch?
Some providers offer deals to pay off any remaining balance on your current contract if you switch to their service. However, to take advantage of these deals, your phone must be unlocked. You can request an unlock from your current carrier if needed.
How to switch mobile phone providers without paying?
If your contract has expired and your phone is unlocked, you can switch without incurring additional charges. Checking for SIM-only deals with no upfront costs is another way to switch without paying extra.
Select a new provider
Once you’ve reviewed your contract and unlocked your device, it’s time to choose a new provider. Mobile service providers in the UK offer a variety of plans, including SIM-only deals that provide flexibility without long-term commitments. When selecting a provider, consider the mobile phone network they use, if EU roaming is included, if you need good coverage in Central London, if you just want to lower your mobile phone bill or if you just want the best mobile phone network in the UK overall to ensure you stay connected without issues or interruptions.
The text-to-switch process: the easy steps to follow
The text-to-switch process, regulated by Ofcom, allows you to change providers quickly and without hassle. Once you have chosen your new provider, you can initiate the process by sending a simple text message.
If you want to keep your existing number (PAC)
If you wish to retain your phone number, follow these steps:
- Text “PAC” to 65075 from your current mobile number.
- Your provider will send you a PAC (Porting Authorisation Code) within one minute.
- Provide the PAC code to your new provider during the sign-up process, either online or over the phone.
- Your number should transfer within one working day.

How to switch mobile service providers using a PAC code to keep your existing number
How do I give my PAC code to my new provider?
During the online sign-up process, your new provider will request your PAC code. Enter the code when prompted to ensure your number is transferred smoothly.
If you want a new number (STAC)
If you’d prefer a new phone number, follow these steps:
- Text “STAC” to 75075 from your current mobile number.
- Your provider will send you a STAC (Service Termination Authorisation Code) within one minute.
- Give the STAC code to your new provider during sign-up.
- Your service will switch within one working day, and you will receive a new number.
How do I give my STAC code to my new provider?
Similar to the PAC code process, enter your STAC code during the online sign-up process with your new provider.
How long does it take to change a mobile provider?
The text-to-switch process ensures that changing mobile providers is quick. Any service disruption should last no longer than one working day. If delays occur, providers must compensate you according to Ofcom regulations.
How to avoid double charges when switching?
To prevent being charged twice, ensure your new service starts before your old one ends. Ofcom has banned mobile providers from charging notice periods beyond the switch date, reducing the risk of double billing.
FAQ
Can I switch providers if I’m still under contract?
Yes, but you may have to pay an early termination fee unless your new provider offers to cover the cost.
What if I want to switch but keep my existing phone?
You can opt for a SIM-only deal, which allows you to keep your current device while changing providers.
Will I lose service during the switch?
Service disruption is minimal and should not exceed one working day.
Final thoughts
Switching mobile service providers in the UK is now simpler than ever, thanks to the text-to-switch process. Whether you’re looking for better mobile phone services or more affordable plans, ensuring you have an unlocked device and checking your contract status are key steps.