
Transferring an eligible existing fax number from another provider into a Fax.Plus account while retaining the same number.
Number porting is the process of transferring an existing fax number from a previous provider into a new account, so the number itself stays the same even though the provider behind it changes.
Requesting a port starts with the Porting Request Form, before purchasing a plan. Fax.Plus checks the active number’s eligibility and typically responds within one business day; see how Fax.Plus number porting works end to end for the full walkthrough. If the number is eligible, subscribe to a plan that supports it: US numbers require Premium or higher, while requirements in other countries may differ. A temporary number lets you set up the account while the transfer is pending. Provide a signed Letter of Authorization (LOA) and a recent invoice; the details must match the current provider’s records. Supply a port-out PIN or account number if the provider requires one. Keep the current service active until Fax.Plus confirms that the port is complete; the transferred number then replaces the temporary number.
Porting a number typically takes 2 to 4 weeks, depending mainly on how quickly the current carrier responds to the transfer request.
Once the port finishes, the number handles transmission like any other Fax.Plus number, appears in the account's job queue and storage, and shows up correctly in the outgoing fax header.
When a carrier changes a school’s underlying line service, plan the school fax-line cutover and office handover as well as the number transfer. Porting a number does not migrate other equipment using the old line.
A Common Case: Keeping a Number Clients Already Know
Consider a small law firm in Colorado changing fax providers. It checks the existing number’s eligibility before purchasing a Fax.Plus plan, supplies the required documents and keeps its current service active until transfer is confirmed complete. If the port completes, clients and courts can continue using the same fax number; the firm tests sending and receiving and follows any separate contact-update requirements.
Porting a fax number to Fax.Plus typically takes 2 to 4 weeks, depending mainly on how quickly your current provider responds to the transfer request. A temporary number covers your account until the port completes.
Porting typically requires a completed Letter of Authorization (LOA) and a recent invoice from your current provider as proof of ownership. Some numbers also require upgrading to a higher plan before the port completes.
