iD Mobile PAC Code: keep your number and switch networks

Last Updated: 29th July 2025

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Are you thinking about leaving your current network and switching to iD Mobile? Or perhaps you are already with iD Mobile and looking to switch to a new network.

If either of the above is true then you're in the right place! Switching networks and keeping your number in 2025 is simple and easy thanks to Ofcom's policy changes.

We've put together a quick and easy to use switching guide. Our guides allow you to select the network you wish to switch to and from, and you will be given a step by step guide on how to keep your number and move to a new SIM Only Deal.

It is worth noting that if you wish to join iD Mobile and get a new number then you can use a STAC code from your current network in order to get a new number and will cancel your existing contract.

- Joining iD Mobile from another network and keeping your number

- Leaving iD Mobile: transfer and switch your iD Mobile number to a different network

Joining iD Mobile from another network and keeping your number

Joining iD Mobile and transferring your number from your current network is a simple process and usually takes no longer than 1-2 working days.

The process which will go through in more detail below, involves requesting a PAC code from your current network and handing it to iD Mobile.

You can either hand the PAC code over to iD Mobile during the ordering process or after you have received your new SIM card or eSIM has been activated.

1. Request a PAC Code from your current network

Switching from your current working and joining iD Mobile is easy. There is no need to commit a new number to memory or update all your contacts!

Requesting a PAC (Porting Authorisation Code) from your current network is easy here is how:

• Text: From your current phone, text "PAC" to 65075. You will receive a text back with your code within 60 seconds. This is a free service from Ofcom (the UK's communications regulator).
• Online: Some networks will allow you to log in to your current online account and request your PAC code.
• Phone: Call your current provider's customer service phone number from your current phone.

Your PAC code is valid for 30 days, so you can request it before you get your new SIM card.

If you would like a new mobile number and don't need to keep your current number, then request a STAC code by texting "STAC" to 75075 from your current phone. This is a universal number set up by Ofcom.

2. Order a SIM only deal from iD Mobile

If you haven't yet ordered your new iD Mobile SIM Only deal, you can use our free comparison engine, which will show you the cheapest iD Mobile deals available on the market.

Compare iD Mobile SIM Only Deals

If you already have your new SIM Card, feel free to skip to step 3 of this article

During the ordering process you may be given the opportunity to share your PAC code from your current network to iD Mobile, if you choose this option then the number transfer process will start once your new sim card arrives and you activate it in by putting it in your phone and turning it on, this also means you can skip to step 4 of this article if you wish!

If you are not given the opportunity to hand over your PAC code when ordering then there's no need to panic. Once your new sim card from iD Mobile has arrived then continue to step 3 of this article.

It is also worth calling out that it doesn't matter if you are able to hand over your PAC code from your current network whilst buying your new sim from iD Mobile or not it's just slightly more convenient but the outcome is the same!

3. Give the PAC code to iD Mobile

Once you have your PAC code, here is how to give it to iD Mobile:

• Online: Get your PAC code and the Transaction Number included in your Welcome to iD email. Once you have both, simply click the 'Submit PAC' button on their website to get started.
• Phone: Call 7777 from your iD Mobile phone or 0333 003 7777 from another phone.

iD Mobile will then handle the transfer process. Your number will usually be transferred to iD Mobile within 1-2 working days.

Important Notes:

• Remember to give your PAC code to iD Mobile within 30 days.

4. Wait for your number transfer to iD Mobile to complete

That's it you've done the hard work, now sit back and relax. iD Mobile will notify your current network of your intention to leave and take your mobile number to your iD Mobile.

The number transfer process will usually take 1 to 2 working days. After this time your current mobile number will be working on your new iD Mobile SIM card.

Leaving iD Mobile: transfer and switch your iD Mobile number to a different network

Joining a new network and transferring your number from iD Mobile is a simple process and usually takes no longer than 1-2 working days.

The process which will go through in more detail below involves requesting a PAC code from iD Mobile and handing it to your new network.

You can either hand the PAC code over to your new network during the ordering process or after you have received your new SIM card or eSIM has been activated.

1. Request a PAC Code from iD Mobile

Switching from iD Mobile and keeping your current phone number is easy. There is no need to memorise a new number or update all your contacts!

Here is how to get your PAC (Porting Authorization Code) from iD Mobile:

• Text: Text "PAC" to 65075 from your iD Mobile phone. You should receive your PAC code via text within 60 seconds. This is a free service from Ofcom (the UK's communications regulator).
• Online: You can request your PAC code online through the iD Mobile website. Login to your iD Mobile account, click 'End my plan' and select 'Yes' when asked if you want to keep your number.
• Phone: Call 7777 from your iD Mobile phone or 0333 003 7777 from another phone.

Your PAC code is valid for 30 days, so you can request it before you get your new SIM card.

If you want a new number and do not wish to keep your current number, you will need to request an STAC code instead of a PAC code. Text "STAC" to 75075 to get your STAC code.

2. Order a SIM only deal

If you haven't yet ordered your new SIM Only deal, you can use our free comparison engine, which will show you the cheapest deals available on the market.

Compare SIM Only Deals

If you already have your new SIM Card, feel free to skip to step 3 of this article

During the ordering process you may be given the opportunity to share your PAC code from your iD Mobile to your network, if you choose this option then the number transfer process will start once your new sim card arrives and you activate it in by putting it in your phone and turning it on, this also means you can skip to step 4 of this article if you wish!

If you are not given the opportunity to hand over your PAC code when ordering then there's no need to panic. Once your new SIM card from your new network has arrived, just continue to step 3 of this article.

It is also worth calling out that it doesn't matter if you are able to hand over your pac code from iD Mobile whilst buying your new sim from your new network or not it's just slightly more convenient but the outcome is the same!

3. Give the PAC code to your new network

Once you have your PAC code, here is how to give it to your network:

• Online: When you order your new SIM card online, you can enter your PAC code.
• Phone: Call your new network's customer service number and provide them with your PAC code.
• In-store: If your new network has a store you can visit a store, and a staff member will help you transfer your number using your PAC code.

Your new network will then handle the transfer. Your number will usually be transferred to them within 1-2 working days. Important Notes:

Remember to give your PAC code to Vodafone within 30 days.

If you would like a new Vodafone number and don't need to keep your current number, remember to get a STAC code rather than a PAC code from your current network.

4. Wait for your number transfer to your network to complete

That's it you've done the hard work, now sit back and relax. Your new network will notify iD Mobile your intention to leave and take your mobile number to your new network.

The number transfer process will usually take 1 to 2 working days. After this time your iD Mobile mobile number will be working on your new SIM card.