Switching Mobile Network

Switching mobile network is usually simple. You can keep your phone, keep your number and move your mobile service to another provider.

Before you switch, check your contract and coverage. Then choose your new provider.

Check Your Contract

First, find out if you are still in contract.

You can check your provider’s app or website. You can also text:

INFO to 85075

Your provider will tell you if you may have to pay to leave.

If you are still in contract, check any exit cost before you switch. However, if your contract has ended, you are normally free to move without an early exit charge.

Check the New Network

Next, make sure the new network works where you need it.

Check coverage at:

  • home
  • work
  • places you often visit
  • regular journeys

A cheaper deal is little use if the signal is poor.

Read: Mobile Coverage and 5G →

Want to Keep Your Number?

Most people want to keep their mobile number when they switch.

To do this, you need a PAC.

PAC stands for Porting Authorisation Code, but you do not need to remember the full name.

Simply text:

PAC to 65075

Your current provider will send you the code along with key information about your contract.

Then give the PAC to your new provider.

Read: Keep Your Mobile Number →

Want a New Number?

If you do not want to keep your old number, ask for a STAC instead.

Simply text:

STAC to 75075

Then give the code to your new provider.

This lets the providers handle the switch without you keeping your old number.

How Long Is the Code Valid?

Your PAC or STAC lasts for 30 days.

So, once you have chosen your new provider, give them the code before it runs out.

If it does run out, you can ask for another one.

How Long Does Switching Take?

Once you give your PAC or STAC to your new provider, the switch should normally be completed within one working day.

There may be a short break in service while the change takes place. However, any loss of service should not last longer than one working day.

If the switch takes too long, you may be able to get compensation.

Will You Pay Twice?

Using a PAC or STAC helps your old and new providers manage the switch.

Your old provider cannot charge you for a notice period that runs beyond the switch date.

However, you may still need to pay:

  • your final bill
  • an early exit charge
  • money still owed for your phone

So, check what you owe before you move.

Can You Keep Your Phone?

Usually, yes.

If your phone works well, you may be able to keep it and put in the SIM from your new provider.

Phones sold by UK mobile providers can no longer be sold locked to one network. So, a newer phone should normally work with another provider.

Still, check that your phone is right for the new service before you switch.

Already Cancelled?

You may still be able to keep your old number.

In most cases, you can ask to move it for up to one month after your old service ends.

So, if you cancelled before asking for a PAC, contact your old provider as soon as possible.

Switch in This Order

First, check your current contract and any exit cost.

Next:

  1. Check coverage on the new network.
  2. Choose your new plan.
  3. Decide whether to keep your number.
  4. Ask for a PAC or STAC.
  5. Give the code to your new provider.
  6. Follow the instructions for your new SIM or eSIM.
  7. Check calls, texts and mobile data once the switch is complete.

Then check your final bill from your old provider.

Key Points

  • Check your contract before you switch.
  • Check coverage before choosing a new network.
  • Text PAC to 65075 to keep your number.
  • Text STAC to 75075 if you want a new number.
  • Your switch should normally take no more than one working day.

Check first. Then switch.

Important Information

Energility provides general information to help you understand energy, household and business costs, services and ways to save money. It is not financial, legal, tax, technical or professional advice.

Prices, tariffs, grants, government schemes, regulations and other information can change. Costs, savings and calculator results are estimates and your actual results may be different.

Before making an important financial decision, signing a contract or carrying out significant work, check the latest information and consider getting advice from a suitably qualified professional where needed.

Energility may receive a commission or other benefit from some links or services. Where this applies, we aim to make it clear. This does not increase the price you pay unless stated otherwise.

Next: Keep Your Mobile Number →

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