Mobile Number Porting


If you are looking to get a new business mobile phone but want to keep your current number, saving endless hassle copying contacts and informing your colleagues and clients of the change, you can transfer your existing number to your new phone and contract. This is called ‘porting’ your mobile number.

How to port your phone number

Porting your mobile phone number should be a relatively easy process; your network provider should have a clear and easy procedure to follow in place for porting mobile phone numbers. Lister’s account managers are fully versed with the porting procedure of all the UK mobile phone networks and can fully assist you with your mobile number ports.
If you currently have a monthly mobile phone contract you can request a Porting Authorisation Code (PAC) from your mobile phone network. PACs are normally made up of three letters and six numbers (in the format ABC 123 123). Beware you may be charged an administration fee for your Porting Authorisation Code, though many UK mobile phone networks will provide this for free.

You can port your mobile number using the following steps

  • Request your PAC number (This can only be requested by the account holder or someone with third party access on the account) from your existing network and make a note of it.
  • Select a mobile handset and network tariff combination that suits you. Talk to us to discuss the best options for your business.
  • Contact your new network or Lister Communications quoting the number you wish to port and the PAC your old mobile phone network provided.
  • Your existing number will then be transferred between 2 and 6 working days, this is dependent on the mobile networks involved and the amount of numbers you have requested to transfer.

Things you should know about porting

Mobile money transfer

Once connected to your new network you may have a temporary mobile number for a few days while the port takes place.
You cannot transfer disconnected numbers so DO NOT cancel your existing contract if you wish to port your mobile number. When you provide your PAC number to a new network the cancellation process will begin automatically with your old network.
In some cases, your old network may transfer you to a pay as you go plan first, allowing you to cancel your contract and transfer your number at your own convenience.

To port your mobile number you may have to pay a small administration fee to your current network. If you are considering transferring your mobile number you should check this beforehand.


Is there any reason I can’t port my number?

Provided you’ve fulfilled your contractual obligations (reached the minimum term of your contract) to your existing network or service provider then you can port your existing number to a different network.

How do I obtain a PAC Code?

You need to call the customer services department of your current network.

For those on the major mobile networks, call the following numbers:

  • 3 – (Three): 333 from your mobile (or 0843 373 3333 from a landline)
  • EE4G – 150 from your mobile (or 07973 966 250 from a landline)
  • O2 – Pay Monthly: 202 from your mobile (or 0844 809 0202 from a landline)
  • O2 – Pay As You Go: 4445 from your mobile (or 0844 809 0222 from a landline)
  • Orange – Pay Monthly: 150 from your mobile (or 07973 100 150 from a landline)
  • Orange – Pay As You Go: 450 from your mobile (or 07973 100 450 from a landline)
  • T-Mobile 150 from your mobile (or 0845 412 5000 from a landline)
  • Vodafone 191 from your mobile (or 0870 0700 191 from a landline)

If your service provider differs from any of the networks above call us on 0800 652 4133 or contact the customer services number at the top of your monthly bill.

Am I legally entitled to a PAC code?

Yes, according to Ofcom’s ‘General Conditions of Entitlement’ (May 2011) Condition 18. All mobile phone companies must provide a PAC Code to consumers who request it within 2 days of the request. If they do not, they must explain why they cannot release a PAC Code to you. Reasons include:

  • Failed security check. You must prove your identity when you call customer services. If you cannot do so, your network reserves the right not to release your PAC Code. This security check ensures that nobody can “steal” your phone number and intercept your phone calls.
  • A PAC Code has already been issued. Once you’ve been issued with a PAC Code, it is valid for 30 days. Your network won’t issue a new PAC Code if one has already been issued and is still valid.
  • You’re tied in to a contract. If you’re currently tied into the minimum term of your contract (i.e. the initial 24 months you signed up for), you’ll have to pay off the remainder of the contract to terminate it and to request a PAC Code. These charges will appear on your final bill.

Your network must issue you with a PAC code within 2 days of your request. Typically you’ll be given the PAC code straight away over the phone but some networks will instead send PAC codes by text message.

To make things easy, your account manager at Lister Communications can manage this for you, freeing you up to simply get on with your day. Call us today on 0800 652 4133 or complete our handy new online assessment here.