Steps

  1. Settings → Phone Number → Change Number;
  2. Enter the new number and the code you receive;
  3. Choose whether to notify contacts (All Contacts is recommended).

What moves with you

  • Chat history, Saved Messages, cloud files and groups;
  • Your username, channels and bots;
  • Other signed-in devices pick up the new number automatically.

Caution

The old number no longer belongs to the account afterwards. If you own groups, consider transferring some to other admins to avoid a single point of failure.