How to Retain Your Phone Number When Switching SIMs or Carriers
Switching mobile networks can sometimes feel like a hassle, right? But if you aim to avoid spending the next month informing your grandma or that one friend who never replies to messages about your new number, keeping your phone number is essential.
Fortunately, both in the UK and the US, there are incredibly straightforward methods to handle this. Here’s everything you should be aware of to maintain your number when you’re switching to a better deal.
How to Retain Your Phone Number in the UK
Requesting a PAC Code via Text
Changing networks in the UK is super easy nowadays, thanks to the Porting Authorisation Code (PAC) system. Here’s what you need to do:
- Text “PAC” to 65075. Simple as that. Your current provider is required by law to send you a PAC code via text immediately or within two hours if you prefer to call them.
- After you receive your PAC code (which is valid for 30 days), give it to your new network. Most providers allow you to do this online or through their app – pretty convenient.
The entire process typically takes about one working day. You may lose service for a few hours during the transition, so don’t plan on making any critical calls during that time.
Note: your old contract will be canceled automatically as soon as your number ports over. Ensure you’re not dodging any outstanding bills, as they’ll track you down like a heat-seeking missile.
Going the Traditional Route: By Phone
For those who prefer to speak to someone or are not too tech-savvy, you can still call your current provider to obtain the PAC code. Just ensure you call *before* your SIM is disconnected, or you’ll end up stuck with an unfamiliar new number.
Here’s a quick reference list for your provider’s customer service numbers:
- EE: 150 from your EE phone or 07953 966250
- O2: 202 from your O2 phone or 0344 8090202
- Three: 333 from your Three phone or 0333 3381001
- Vodafone: 191 from your Vodafone phone or 0333 3040191
- Tesco Mobile: 4422 from your Tesco Mobile phone or 0800 0304422
- Virgin Mobile: 789 from your Virgin Mobile phone or 0345 6000789
- GiffGaff: 0843 9020762
How to Retain Your Phone Number in the US
Texting or Talking to Your New Provider
In the US, the process is a bit more complex, but don’t worry. The FCC (which stands for Federal Communications Commission, not a curse word) states that you have the right to keep your number when you switch. Here’s how:
- Confirm that your number can be ported. Most can, but if you’re still using a pager or an old prepaid plan, you might be out of luck.
- Inform your new carrier that you wish to port your number. They will require your current account details, PIN or password, and your billing address.
- Avoid canceling your old service until the porting process is complete, or your number might be lost. Total rookie mistake.
Porting can take anywhere from a few minutes to several days, depending on your number and provider. Mobile numbers transfer faster than landlines. Also, if you’re on a prepaid plan, make sure to spend your balance first – no refunds are provided.
Contacting Your Current Provider
If you would rather talk to someone directly, you can call your current US carrier. They can provide you with the necessary information for the port process.
Here are the phone numbers in case you need them:
- AT&T: 1-800-331-0500
- Verizon: 1-800-922-0204
- T-Mobile: 1-877-746-0909
- Metro by T-Mobile: 1-888-863-8768
- Boost Mobile: 1-866-402-7366
What If You Prefer a New Number Instead?
Alright, so maybe you’re looking for a fresh beginning or avoiding calls from creditors (no judgment here). In the UK, just text “STAC” to 75075 to receive a Service Termination Authorisation Code. This will cancel your current contract and allow you to move on like a breeze. #Freedom.
In the US? There’s no unified text service, so you’ll need to directly call your provider. I know, what a hassle.

Will It Cost Me to Switch Providers?
Switching could incur costs if you’re still under contract or financing a phone. If your contract is up, you’re in the clear. No fees.
In the UK, text “INFO” to 85075, and Ofcom will reveal your contract status and any charges you might still owe. Quite handy!

Summary: From PAC to Smooth Sailing – Keep Your Number Without the Hassle
Switching providers doesn’t have to be a stressful or confusing experience. Whether it’s texting “PAC” or chatting with your carrier, retaining your number is easier than eating a Greggs sausage roll. Follow the outlined steps and avoid the hassle – or risk explaining your new number to your aunt for the next five years. Your choice.
Visit gadgetlad.co.uk for more tech talk and brutally honest reviews. You know you love it!

