Number porting

Number porting is the process of transferring a telephone number between service providers while retaining the number itself. It allows a business or individual to change service without asking every contact to use a new number. Eligibility and procedures depend on the country, number type and providers involved; a number should not be assumed portable solely because it is active.

Porting usually requires accurate account information and authorisation from the party entitled to move the number. A mismatch in records can delay the process. The number transfer and the new service configuration are related but separate tasks: inbound routing, outbound presentation and any associated features need their own checks. Teams should coordinate timing, identify dependencies and confirm the new route before retiring the old arrangement. Porting is also different from forwarding, which leaves the number with its current provider and redirects calls. A continuity plan should include how staff will recognise and report problems during the transition.