Thanks for reaching out and for showing interest in keeping your service with us.
Usually when you move house, yes - it's totally possible to keep your old phone number. But not always. You can take your phone number to your new home as long as you're moving with the same telephone exchange area.
You can call our team on this number 0345 454 1111, just press 4 and then press 3. Our team will help you arrange your move request and they'll let you know if you can keep the same phone number.
Hope this helps. Just let us know if have any questions.