One of the most common concerns businesses have about switching phone providers is losing their number. They have had the same number for years. Clients know it. It is on their website, their cards, their signage.
The good news: you do not have to give it up. Number porting moves your existing numbers to a new provider. Here is how it works.
What Number Porting Is
Number porting is the process of transferring your existing phone number from your current carrier to a new one. The number stays the same. The provider changes.
This is federally mandated. Carriers are required to release your number when you request a port. They cannot hold it hostage to keep your business.
How Long It Takes
Standard number porting for business VoIP typically takes 7-14 business days. The exact timeline depends on your current carrier and how quickly they process the release.
Some carriers are faster. Some are slower. Your new provider will manage the process and keep you updated on the timeline.
What You Need to Start a Port
Your current account number with your existing carrier. The exact billing name and address on the account. A recent invoice or account statement. A signed Letter of Authorization (LOA) authorizing the port.
Your new provider will give you the LOA to sign. The rest of the information is on your current carrier's invoice.
What Happens During the Port Window
Your existing service stays active until the port completes. There is no gap in service. On the day the port completes, calls to your number start routing through the new system.
A good provider coordinates the timing so everything is configured and tested before the port date. You confirm everything is working, then the number transfers.
What to Watch For
Make sure your LOA information matches your carrier account exactly. Mismatches cause delays.
Do not cancel your existing service before the port completes. Wait until your new provider confirms the numbers are live.
If you have multiple numbers, they can often be ported in a batch. Confirm this with your new provider upfront.
Temporary Numbers During the Transition
While the port is processing, your new provider can assign temporary numbers to your system so you can test and configure everything before the official cutover. Staff can start using the new system before the main number transfers.