When you sit down and think about all the things tied to your mobile number, the idea of losing it is scary…

You’d have to contact your bank, utilities, doctors, and go through the hassle of setting up any two-factor authentication you have on services again.

That doesn’t include all the family and friends you have who will take months to remember your number changed…

Fortunately, whether you’re switching networks, consolidating accounts, or getting the kids set up on their own accounts as they grow up, transferring numbers between providers is simple.

Keeping your number is simple.

In this guide, we’ll cover everything you need to know. With these steps, you can enjoy your old number on a service in a matter of hours!

Editor’s Note: This post has been updated for 2022

A Quick Primer on Rules Before You Get Started

While the number porting process is simple, you’ll want to keep a few things in mind before getting started:


Only the account holder can initiate a number port


You can’t transfer numbers outside their originating region


You can’t transfer 800 numbers or pager numbers

However, there are a couple of rules working in your favour as well:


As long as you meet the rules above, your service provider cannot stop you from transferring out your number.


You can transfer your number, even if you owe your current network.

There is an important caveat to that last one though...

The account must be active to transfer the number!

If your account is closed due to non-payment, or you close the account yourself before porting the number, you will likely lose it.

6 Steps to Number Porting Success

Porting your number is a hands-off process. Mostly, everything will happen behind the scenes once you get the process started.

Find a New Service Provider

The first thing you must do is find a new network.

If you’re not sure what you need or where to start, our guide on switching networks covers all the important topics and breaks things down into easy, actionable steps.

Gather Important Account Information

Once you have a plan in mind, you’ll want to gather some information to start the number porting process.

While the exact information needed might vary between networks, common items include:


Identifying information -- such as a government-issued ID card or driver’s license


Proof of address -- such as a bill from one of your utility providers or credit cards


A copy of your bill from your current provider

Request a PAC Code from Your Existing Network

Also known as Porting Authorisation Codes, PAC codes allow you to move your number from one network to another. Simply call up your existing service provider and request one. 

You can also simply text "PAC" to 65075 to start the process. 

They are legally entitled to give you a code so long as you can prove your identity. So if they send you the retention or disconnection department first, you're not required to make a deal with them.

PAC Codes are only valid for 30 days. So make sure to start the number porting process quickly to avoid any potential issues.

Sign Up for Service with Your New Network

 Sign up for your new plan and be sure to tell them you want to bring your number with you from your existing plan. Once you provide the PAC code from your previous network, they can start the process of bringing your number over.


Your new network will contact your old network and negotiate bringing your number over. You’ll want to leave your existing SIM in your mobile to place and receive calls while the process completes.

However, keep a close eye on your service. Should you notice you can’t place calls anymore, or you don’t have coverage in a place where coverage is usually strong, these things might indicate the switch is complete.

In most cases, the number porting process only takes one or two days to complete. However, weekends and English bank holidays might add a slight delay.

Swap SIMs and Enjoy!

Once the number is transferred, pop your new SIM in the mobile and reboot it. Then follow any activation instructions provided by the network.

In most cases, activation is as simple as calling customer service. You can find customer services numbers for every network in our network summaries.

Place a few calls to verify everything is working properly. If you can, have a friend or family member call and text you as well to cover all the bases.

If you had any advanced calling features—such as call forwarding or voicemail—set up with your old provider. You’ll likely need to configure these again to work how you’d like.


TIP: If your network uses CDMA, you might not have a SIM. In this case, you’ll need to call to activate your mobile on the new network using the IMEI/MEID number on your mobile. In most cases, you’ll find this on the back of the mobile or in the battery bay. If you cannot find it, calling your network is an easy way to get answers.

Wrap Up Any Loose Ends

That’s it! You’ve switched your old number to a new provider.

At this point, you’ll want to call your old provider and make sure everything is handled there regarding any remaining fees or other concerns.

Also, be sure to put your mobile service through its paces in the coming days.

Many networks have a small window at the start of any new service during which you can receive a refund or get out of your contract is service isn’t to your liking.

Other Considerations

While the steps are straightforward, there are other things to consider outside the actual porting process. We’ll cover the most important concerns below.

Avoiding Extra Fees and Surprises

In many areas, you can still port your number away from your existing network even if you’re on contract or your account is behind on payments.

However, this doesn’t stop them from charging you early termination fees, late fees, or attempting to collect on any debt you might owe.

In fact, many networks include stipulations in their terms of service that all charges due when the account is closed will draft automatically from the billing method on file with your account.

Be sure to check any contract requirements and obligations before porting your number out to avoid any nasty surprises next time you check your bank or credit card balances.

Backing Up Contacts and Data

In the early days of mobiles, all of your contacts were stored on your SIM card. This made it easy to bring contacts from one mobile to the next since many had limited memory.

Today, most smartphones use apps and services to keep up with contacts and other important information. However, if you’re switching devices while moving your number over, you’ll want to make a backup to be sure you don’t miss any important files after the switch.

If you use Gmail and the other Google Apps in Android for communications, there’s a good chance most of your contact information is already tucked away safe in the cloud.

There are also numerous Android backup apps out there geared toward making more comprehensive backups.

If you’re an Apple fan, just make a backup using iTunes before you swap devices and restore it when you’re done.

Bringing Your Mobile with You

While you can transfer almost any local number to another service provider, mobiles don’t always support every network. Moreso, if you bought it from your network, there’s a good chance it is locked.

If you’re planning on bringing your number AND your mobile to a new provider, be sure to check our mobile unlocking guide before making the switch to ensure you can still use your favourite mobile.

Setting up VoIP as a Backup

While the number porting process usually only takes a day or two at the most, there’s always the risk you won’t be able to place or receive calls during the process.

If you’re expecting critical calls, setting up a VoIP service, such as Google Voice or Skype, can help to route calls as needed until the process is complete.

Just be sure to remove any call forwarding or other settings once your number is with your new provider to avoid any confusion.

You might also notify contacts that you’re switching numbers and that downtime might occur.

Getting Around Region Limitations

If you’re moving between regions, your options for keeping your number are limited.

Unless you encounter coverage issues in your new location, the easiest option is to keep your existing account.

However, if you need better coverage -- or you’re trying to take advantage of a better plan or savings elsewhere -- you might be able to transfer your number if you can provide identifying information that links you to an address in your original location.

You have two main options:

If you haven't moved yet, just start service with a new network, port your number using the steps in this guide, and move without worry and update your billing address when you arrive in your new location.

Of course, you’ll want to check coverage using the official network maps and third-party sites, such as RootMetrics and OpenSignal, to be sure you’ll have a strong signal in your new location.

If you’ve come to this guide after moving, there’s still an option -- but it’s a bit complicated…

Essentially, you’d need to be able to provide information that claims you live in the original region to port your number. Common examples might include an old (but not too old) utility bill or an active PO Box.

The best way to find out what information might work is to call the network you intend to switch to and talk with a representative as accepted forms of identification might vary.


TIP: If you cannot keep your number, but want a number in the same area code as your previous number, you might be able to use Skype or Google Voice to forward calls and texts from a virtual number to your new number, but this is outside the scope of this guide.

WARNING: Many networks use GPS triangulation and other advanced features to route calls to the appropriate response centre or determine your location.  However, if they base your response centre on your billing location and you're using an address in another region, you could find help hard to reach in an emergency.

A Quick Recap


DO NOT cancel your existing service if you want to keep your number


Gather any information needed in advance to ensure a smooth transition


Check contracts and account requirements before transferring numbers to avoid surprise fees


Backup contacts if you don’t have an app-based solution in place


Be sure to tell your new provider you want to keep your number and use your PAC code within 30 days of issuance


Account for any important calls during downtime with VoIP or a backup number

Exact regulations differ depending on the country you live in. If you’re looking for the official number porting regulations for the UK, consult Ofcom's Number Portability page.

With the competitive nature of today’s mobile markets, switching networks is a popular way to save money and find the ideal plan for your needs.

We hope this guide helps you get the most out of your mobile service while keeping the number you’ve had all these years.

P.S. If you’re still locked into a contract and don’t want to pay the fees to port your number to a new provider, our guide to avoiding early termination fees can help. It offers multiple tips and tricks you can use to legally avoid these common fees and break free from your existing service provider.

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