PAC Codes: How to transfer your mobile number when switching networks

September 10th, 2009

Christmas #1
Creative Commons License photo: kevindooley

One of the main reasons that many people I know have refused to consider switching mobile phone provider, even when cheaper deals are around, is that they are unaware they can take their phone number with them. For many people, it’s vital to be able to keep a current mobile phone number: the cost of having to inform everybody of your number change and the possibility of lost sales/missed calls can be significant.

Well – it is possible to switch network and keep your current phone number. You’ll need a PAC (Porting Authorisation Code) Code to do that.

What does a PAC code do and do not do?

It will allow you to move your phone number from one network onto another. You have 30 days to use the code from when it is issued.

It may lead to the automatic cancellation of your existing contract when used, but it may not. Check with your network provider about whether you need to do this separately.

It will not allow you to transfer Pay as You Go credit. It also does not transfer things such as the contacts/settings on your SIM card – you need to do this separately.

When should I obtain one?


Creative Commons License photo: Viernest

Only when you want to switch network and keep your number. If you are staying on the same network but want to transfer your number to a new phone/SIM card, you will not require one.

How do I obtain a PAC code?

Call the customer services department of your current network:

  • 3 (Three): 0870 7330 333 (333 from your mobile)
  • O2: 0870 2410 202 (202 from your mobile)
  • Orange: PAYG 07973 100 450 (450 from your mobile), Contract: 07973 100 150 (150 from your mobile)
  • T-Mobile: 0870 6060 139 (150 from your mobile)
  • Vodafone: 0870 0700 191 (191 from your mobile)

How do I use the PAC code?

You need to provide this PAC code to your new network when you register with them. Go to the website of your new mobile operator and provide them with your PAC code during the registration process:

Alternatively, call the customer services of your new network once everything has been sorted out.

Your new network will handle the “porting” of your phone number.

Am I legally entitled to a PAC code?

Yes, according to Ofcom’s ‘General Conditions of Entitlement’ (2003) Condition 18. They must issue you with a PAC code within 2 days of your request unless you are tied in to a fixed term contract and have not completed it.

How long does it take to transfer my number between networks?

Up to two working days.

About the Author: Hi! I'm Ken. I've been using mobiles for over 10 years and technology for a lot longer! I'd love to hear from you.

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4 Responses to “PAC Codes: How to transfer your mobile number when switching networks”

  1. Peteron 11 Jan 2010 at 6:45 pm

    I have gave my Pac code into T-Mobile from O2 and it has been 3 days now and no switch over has occurred, can it normally take this long?

  2. aji donon 13 Jan 2010 at 2:27 pm

    it shouldnt normally becuase they normally take 2 dayz but since there is snow in the uk connections are low so u may have to wayt until the weather blows over

  3. Lucyon 26 Jan 2010 at 10:18 pm

    Im in the last month of my contract. I have my pac code. when should I use it? If i use it now and order the phone will i have to pay the new phone contract from soon after ive ordered it, or will it do it from the end of my current contract? Is a bit confusing.

  4. mavison 25 Feb 2010 at 5:27 pm

    My friend is leaving her mobile phone contract & is not getting another mobile so she has offered me her PAC code (i like her number very easy to remember!!) can i use it when getting a new mobile?

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