PAC codes, STAC codes, and the UK mobile switching process explained step by step. General educational content — always verify with providers.
General educational content only. NOT affiliated with any UK telecom provider. NOT licensed professionals. Verify all details directly with providers. Full Disclaimer →
Text "PAC" to 65075. Ofcom rules require your provider to send your PAC by text within 60 seconds — free of charge. PAC codes are valid for 30 days.
Compare options using our network guides. Check coverage at your postcode using the new provider's official checker before committing to any plan.
Sign up with your chosen new provider. Give them your PAC code at sign-up. They initiate the number transfer — you do NOT need to cancel your old contract separately.
Number transfers typically complete within one working day. You may experience a brief period without service during the actual switch window.
Providing your PAC automatically initiates cancellation of your old contract. Check for any early termination charges if you are currently mid-contract.
| Scenario | Code Needed | How to Get It | Transfer Time |
|---|---|---|---|
| Keep number, change provider | PAC | Text PAC to 65075 | Within 1 working day typically |
| Leave without taking number | STAC | Text STAC to 75075 | Service ends within 30 days |
| New number, new provider | NAC or none | Text NAC to 65075 | Immediate or agreed date |
✅ Your Rights: Under Ofcom regulations, your provider must provide your PAC or STAC immediately upon request at no charge. You cannot be charged a fee for requesting these codes. If a provider refuses or delays, report them to Ofcom at ofcom.org.uk.
⚠ Mid-Contract Warning: Getting a PAC code does not waive early termination charges. If you are mid-contract, you may still owe the remaining monthly payments to your old provider even after switching. Always check your contract terms first.