Short answer
If you want to keep your existing number, you normally need a PAC from your current network. The number transfer is a separate task from the initial sign-up, so think of it as a second stage rather than something that replaces the checkout journey itself.
Ready to check the live offer?
If Lebara still looks like the right fit, open the referral link, choose your plan, and check the discount before paying.
Independent guide to the Lebara UK referral offer. We may earn a referral reward if you sign up through our link. We are not affiliated with or endorsed by Lebara or Vodafone. Offers and terms can change, so always check the final details during checkout.
Best order of steps
Use the referral route and complete sign-up
Get the plan sorted and make sure the discount is visible before payment.
Request your PAC from the old network
That gives you the transfer code you need to keep your number.
Submit the PAC through the right channel
Follow the provider’s transfer instructions rather than guessing the timing.
Keep the old SIM active until the switch finishes
The old line will usually stop working once the transfer is complete.
What to expect on timing
Number transfers are usually quick once the PAC has been submitted properly, but it is still sensible to plan around a transition period. Do not assume everything happens instantly, especially if you are switching on a day when you rely heavily on calls or texts.
The key point for referral shoppers is that a PAC transfer should not distract you from the earlier checkpoint: confirm the discounted price during checkout before you think about the port.
Mistakes to avoid
- Cancelling the old service before the number has transferred.
- Trying to solve PAC questions before finishing a clean referral checkout.
- Assuming the new SIM and the old number will work together instantly.
- Forgetting to keep a screenshot of the discounted sign-up price.
Common questions
Keeping your number on Lebara FAQs
These are the questions people usually ask before they switch. If anything affects your decision, verify it during checkout or on the provider’s support pages before you pay.
Can I keep my number and still use the referral offer?
Usually yes. The clean way to think about it is sign-up first, number transfer second. Confirm the discounted price, then complete the PAC process.
Should I cancel my old provider before the transfer finishes?
No. Keep the old SIM active until the transfer is complete and the old line stops working.
What matters most for referral shoppers?
Do not let number-transfer admin distract you from the crucial step of checking the price before payment. That is the referral checkpoint that matters most.