PAC code UK 2026 — complete guide
A PAC code is the free code that lets you transfer your mobile number to a new network. Text PAC to 65075 and receive it within 60 seconds.
How to get your PAC code
Text PAC to 65075 from the phone whose number you want to keep. Reply arrives within 60 seconds containing:
- Your PAC code (format: ABC123456 — three letters, six digits)
- Expiry date (30 days from issue)
- Your current network's contact details
Completely free. Ofcom requires all UK networks to provide it on request.
What the PAC code does
Providing your PAC code to a new network authorises them to transfer your number from your old network. The technical transfer happens within one working day. Your old contract cancels automatically — no need to contact your old provider separately. You receive a final bill for any remaining charges.
Step-by-step: using your PAC code
- Text PAC to 65075 → receive code within 60 seconds
- Sign up with your chosen new network and provide the PAC code and your existing number
- New SIM arrives (1-3 days by post) or activates instantly (eSIM)
- New network processes the PAC code — transfer completes within one working day
- You receive a confirmation text when the number has moved
- Old SIM stops working — old contract automatically cancelled
PAC code vs STAC code
PAC code — keep your existing number, move it to a new network. Text PAC to 65075.
STAC code — leave your current network without taking your number (you get a new number with the new provider). Text STAC to 75075.
Use PAC if keeping your number matters. Use STAC if a new number is fine.
How long is it valid?
30 days from issue. If it expires, text PAC to 65075 for a new one instantly. The old code is automatically invalidated.
Can I get a PAC code mid-contract?
Yes — at any time. However, using it triggers automatic cancellation of your old contract. If you are mid-contract, you may owe an Early Termination Charge — remaining months at your monthly rate. Check your contract terms before requesting. On 30-day rolling plans, no termination charges apply.
What if my PAC code is rejected?
Most common reason: you are providing the wrong phone number. Confirm you are texting from the correct device. If the code expired, request a new one. If a valid code is still rejected, escalate to Ofcom — providers are legally required to honour valid PAC requests.
Compare SIM plans to switch to on GadgetRank →
PAC codes and number porting — your rights
Ofcom's regulations protect you throughout the PAC code process. Your network must provide a PAC code free of charge within 60 seconds of a text request. They must complete the port within one working day of the new network submitting a valid PAC code. They cannot delay or obstruct the process.
If your old network fails to release your number within the stated timeframe after a valid PAC code is submitted, contact Ofcom directly. Providers that obstruct number porting face regulatory action. In practice, the process works smoothly for the vast majority of switches — but knowing your rights is useful if complications arise.
Compare SIM plans to switch to on GadgetRank →
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