Porting guides / Google Voice
How to move your number from Google Voice
A personal Google Voice number. Unlock it first, which costs Google $3, then move it.
What you'll need from Google Voice
- Account number
- Your Google Voice number itself.
- PIN
- Google doesn't issue a transfer PIN. Use your Google Voice voicemail PIN, or 0000 if you never set one.
- Fee
- $3 to unlock, paid to Google. Moving the number to Onyx Phone is free.
- Name and address
- Exactly as Google Voice 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
- Go to google.com/voice/unlock and sign in.
- Choose Unlock my number under the number and pay the $3 fee. It's free if the number was ported into Google Voice in the first place.
- Wait until the number shows as Unlocked, then start the move with us. A screenshot of the unlocked page can stand in for a bill.
Good to know
- Don't lock the number again until the move is finished.
- Your Google Voice texts and voicemails stay in your Google account.
- Google Voice for Google Workspace works differently: see that guide.
- Keep your Google Voice 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.
Help from Google Voice
Google Voice help. Google Voice's own help page has its latest steps.
Questions about moving from Google Voice
How long does it take to move a number from Google Voice?
Usually 3 to 7 business days after you sign the letter of authorization. Google Voice 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 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. Google Voice charges its own fee: $3 to unlock, paid to Google.
Can I text from the number as soon as it moves?
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.
What if Google Voice 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