1) Check you’re eligible to switch from Tesco Mobile
Certain that you’re out of contract? Good news: that means you’ll be able to switch network for no extra charge.
If you’re not sure if you’re still under contract or want to check your end date, you can get in touch with Tesco Mobile's customer support by calling 4455 from your Tesco Mobile phone.
Or you can ring 0345 301 4455 from any other phone (standard network rates apply).
Opening hours are 8am-9pm Monday-Friday. 8am-8pm Saturdays and 10am-6pm Sundays.
Alternatively, you can find out your contract end date by logging into your Tesco Mobile account or within the Tesco Mobile app on your phone.
Decided to keep your existing phone and get a new SIM only deal on a new network? Okay, that means you may need to get your phone unlocked, so it’ll accept the new SIM.
So while you’re on the phone, make sure you ask Tesco Mobile whether your phone is unlocked. If it is and you want to unlock it, ask them for your pin unlock key (PUK). Tesco Mobile will send you this and you can use it to unlock your handset.
2) Contact Tesco Mobile to tell them you’re leaving and get your PAC Code
Parting is such sweet sorrow. But perhaps not in this case.
Your next job is to get in touch with Tesco Mobile to tell you’d like to leave. You can do this using the phone numbers in step 1.
While you’re on the phone, make sure you ask for a PAC Code. This is a short sequence of letters and numbers that you’ll need to transfer your existing telephone number to the network you’re joining.
The law states that networks must provide you with your PAC Code within two hours of your request.
The critical thing to note is that PAC Codes expire after 30 days. If for any reason, you elect not to use your PAC Code during this timeframe, you’ll need to get in touch with Tesco Mobile to request a new one.
3) Find and buy a SIM-only deal from BT Mobile
Next up, you’ll need to select a deal from BT Mobile and sign up for it through uSwitch.
BT Mobile will run some credit checks. After which point, your phone will be sent to you in the post.
4) Contact BT Mobile to give them your PAC Code
OK, it’s time to get in touch with BT and give them your PAC Code. Once you’ve done that the process of transferring your number to BT Mobile is in motion.
Get in touch with BT by calling 0800 800 150 (standard network rates apply). Opening hours are 8am-8pm Monday-Friday and 9am-6pm Saturday and Sunday.
5) Insert your BT Mobile SIM
Got a new phone from BT Mobile? Use the pin in the box to open the SIM tray and insert your new BT Mobile SIM.
If you opted for a SIM only deal, you'll just need to put the BT Mobile SIM in your existing phone.
The number transfer doesn’t happen instantly. But while it’s taking place, you’ll have a temporary number that you can use.
6) Wait for your number to be transferred to BT Mobile
BT Mobile typically completes number transfers the next day. However, it may take a bit longer, depending on how early in the day you made your request.
If there’s a weekend or Bank Holiday in the way, this may also hold up your transfer a little bit.