Porting guides / Google Voice for Google Workspace

How to move your number from Google Voice for Google Workspace

Business Google Voice numbers managed in the Google Admin console. A Workspace admin gets the port-out PIN.

What you'll need from Google Voice for Google Workspace

Account number: Usually your Google Voice number (10 to 12 digits), shown in the Admin console under Apps, Google Workspace, Google Voice.
PIN: A port-out PIN of 4 to 10 digits, valid for 7 days.
Name and address: Exactly as Google Voice for Google Workspace has them on your account. Copy them from a recent bill.
A recent bill: A PDF or a photo from the last 30 days.

Get your PIN

In the Google Admin console, open Apps, then Google Workspace, then Google Voice.
Open Number porting, then Port-out info, and view or set the PIN.

Good to know

You need a Workspace admin role that can manage Google Voice; otherwise ask your super admin.
Several numbers from one account can move in one request.
Export voicemail transcripts and anything you need first: they stop when the number leaves.
Keep your Google Voice for Google Workspace service until the move is done, or the number can be lost.

Then move it to Onyx Phone

Start your free trial. You get a temporary local number right away, so you can make and take calls today.
Forward your current number to the temporary one if you like (most landlines: dial *72 and the number), so customers reach you here during the move.
In Onyx Phone, open Lines, then Begin a port, enter the details above, and attach the bill. Moving a number is free on every plan.
Sign the letter of authorization we email you. Nothing starts until it's signed.
The carriers confirm a date, usually 3 to 7 business days after you sign. On port day your number replaces the temporary one, and calls you place show it.
The temporary number keeps ringing your line for 30 more days, so anyone you gave it to still gets through, then it's released.

Texting registration doesn't come with the number. US carriers approve each business that texts, so register in Onyx Phone when you start the move; approval usually takes one to two weeks, and calling works meanwhile.

Try Onyx Phone free

Help from Google Voice for Google Workspace

Google Workspace support, chat in the Admin console. Google Voice for Google Workspace's own help page has its latest steps.

Questions about moving from Google Voice for Google Workspace

How long does it take to move a number from Google Voice for Google Workspace?

Usually 3 to 7 business days after you sign the letter of authorization. Google Voice for Google Workspace and Onyx Phone's carrier confirm the date, and you get an email at each step.

Will my phone stop working while the number moves?

No. Keep your Google Voice for Google Workspace service until the move is done. You answer on a temporary Onyx Phone number in the meantime, and you can forward your current number to it so customers reach you either way.

Does moving my number cost anything?

Moving it to Onyx Phone is free on every plan.

Can I text from the number as soon as it moves?

What if Google Voice for Google Workspace turns the move down?

Onyx Phone shows what the carrier said, and you can fix the details and send it again. The usual reasons: the account number, name, or address doesn't match what the carrier has. Copy them from a recent bill; the PIN expired or was replaced. Get a new one and send the request again.

Can I move a toll-free number?

Not from the app yet. Guides cover US local and mobile numbers. For a toll-free number, tell us on the contact form and we'll arrange it.

Carriers change their apps and rules; we last checked this guide on October 24, 2026. Markdown version · All porting guides