O2 is the leading provider of mobile and broadband services

Switching To O2

You will need to contact your current mobile phone provider and request a PAC code/Port Authorisation Code. This will usually take approximately 2-3 days to arrive. When you have received your PAC code,  click here to view the very latest online deals and special offers from O2.  Once you have found the deal you want from O2, when completing your order, submit your PAC code when requested into the approprite box on the ordering form.  O2 will then provide you with a temporary number to use whilst your existing number is transferred over, which may take a few days.

Please note - that you should not cancel your contract with your existing provider until they have provided you with your PAC code, free of charge, and you have given this to your new mobile phone provider, O2. If you cancel before then your new service provider, O2 may not be able to transfer your number across and you may also incur a connection fee.

Switching From O2

The first thing to do is contact your current network provider, O2 on 0870 241 0202 (or 202 from your mobile phone) and request your O2 PAC/Port Authorisation code.  O2 will then issue you it over the phone or send it in the post within 2 working days.  You will need to give this code to your new service provider in order to use your existing number with them.

Once you have received your Port Authorization Code from O2 simply choose the deal that best suits your usage requirements and order online - during the order process you will be asked to enter your O2 PAC code.  Please note - that many of the best mobile phone deals are only available exclusively online.  View the latest best online deals from Vodafone, Orange, 3 Mobile, T-Mobile, Virgin Mobile , Carphone Warehouse, Phones4u and Dialaphone.  Plus, check out the latest mobile phone voucher codes too.  Visit our voucher code website www.voucherseeker.co.uk.

The process takes approximately 7 working days.  Once this process is complete your existing SIM will no longer work and you will be given a new SIM card by your new service provider.

You cannot 'port' your number if you have chosen a new phone on your same network.  Your current service provider will provide you with an upgrade.

You cannot 'port' your number if you have not completed your minimum contract term with your existing supplier.  Check your existing terms and conditions with your current service provider to establish when you can change networks.

Please note - that you should not cancel your contract with your existing provider, O2 until they have provided you with your PAC code, free of charge, and you have given this to your new mobile phone provider. If you cancel before then your new service provider may not be able to transfer your number across and you may also incur a connection fee.