> For the complete documentation index, see [llms.txt](https://docs.limephone.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.limephone.io/phone-numbers/transfer-your-number-to-limephone.md).

# Transfer your number to LimePhone

Keep your existing business number when you switch — here's what porting needs, how long it takes, and how to start.

## What you'll need

* **Current carrier details** — your provider's name and your account number.
* **Number details** — the number you want to port and its associated billing telephone number (BTN).
* **A signed Letter of Authorization (LOA)** — from the authorized user on the account.
* An active LimePhone subscription.

## Start the port

Email <support@limephone.io> with the number you want to port. We'll send you the LOA and let you know exactly which documents your country and number type require.

## What happens next

1. **Review.** LimePhone verifies your information with your current carrier. You may be asked to confirm details — double-check everything, because mismatched account information is the most common cause of delay.
2. **Porting window.** Porting usually takes a few business days; we'll give you an estimated completion date. **Keep your current service active until the port completes** — cancelling early can cause you to lose the number.
3. **Completion.** Once the port finishes, the number appears in **Settings → Phone numbers** and works like any other LimePhone number — configure routing, voicemail, and the rest as usual.
4. **Test.** Make and receive a call and a text on the ported number. If anything's off, contact support.

## Best practices

* **Start early** — begin well before any deadline to avoid service interruptions.
* **Unlock your number** — if your current provider locks numbers, ask them to unlock it before porting.
* **Check eligibility** — some landline and VoIP numbers can't be ported; we'll confirm yours during review.
* **Stay reachable** — we may need you to confirm details during the process.

## Need help?

Email <support@limephone.io> at any point in the process — we'll keep you updated until your number is live.