PAC Code Transfer Guide

Switch from Chattr to EE and keep your number

Written by: SIM Only Finder Editorial Team

Last reviewed: 11th July 2026

Switch from Chattr to EE and keep your number

Written by: SIM Only Finder Editorial Team

Last reviewed: 11th July 2026

In this guide

Overview
Request a PAC code
Order a SIM only deal
Give the PAC code
Wait for the transfer

This guide explains how to switch from Chattr to EE and keep your mobile number.

Most number transfers complete within 1 to 2 working days once EE has your PAC code.

If you want a new number instead, text STAC to 75075 and give the code to EE.

This switch will take you from O2's network to EE's network. Coverage may differ in some areas. Check EE's coverage checker before switching.

Reviewed by Phil Brown · Founder, SIM Only Finder. Before launching SIM Only Finder, Phil worked in UK mobile retail at Three UK, advising customers on SIM plans, contracts, and network choices. He has spent over a decade running consumer comparison platforms and reviews networks and SIM-only deals based on that hands-on industry background. About SIM Only Finder

Last reviewed: 11th July 2026

Joining EE and leaving Chattr

Quick Network Switching Tool
Select which network you would like to switch from and to and we will give you precise instructions on how to keep your number when switching to a new SIM Only Deal.

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To keep your number, request a PAC code from Chattr and give it to EE.

You can usually give EE your PAC code when you order, or after your new SIM card or eSIM has been activated.

1. Request a PAC code from Chattr

Here is how to get your PAC (Porting Authorisation Code) from Chattr:

Text: Text "PAC" to 65075 from your Chattr phone. You will get a text back with your code within a minute. This is a free service from Ofcom (the UK's communications regulator).
Email: Email Chattr at hello@chattr.co.uk to request your PAC code.

Chattr is an online-only network with no stores or phone line.

2. Order a SIM only deal from EE

If you have not ordered yet, compare current SIM only deals below.

Spusu SIM or eSIM 1 month contract

1 GB Data

500 Minutes

500 Texts

Monthly £2.90

See Deal Sold by Spusu

Mozillion SIM or eSIM 24 month contract

1 GB Data

Unlimited Minutes

Unlimited Texts

Monthly £3.00

See Deal Sold by Mozillion

Mozillion SIM or eSIM 12 month contract

1 GB Data

Unlimited Minutes

Unlimited Texts

Monthly £3.50

See Deal Sold by Mozillion

If you already have your new SIM, continue to Step 3.

If EE asks for your PAC code during checkout, enter it there. If not, wait for your new SIM or eSIM to activate, then give EE the PAC code using the method below.

EE SIM plans are tiered, and inclusive EU roaming only starts at the Essentials Plus tier, so check what is included before you order.

3. Give the PAC code to EE

Once you have your PAC code, follow these steps to give it to EE:

Online: Give your PAC code to EE via their online transfer form.
Phone: Call EE on 150 from your EE phone or 07953 966250 from another phone.
- Open everyday from 8am - 6pm.
In-store: Pop in to your nearest EE store and give them your PAC code.

EE will then handle the transfer of your number. Give them your PAC code within 30 days of receiving it — after that it expires and you will need to request a new one from Chattr.