How to transfer your phone service

To transfer your phone service, you need a transfer authorization code (also called a porting PIN or account PIN) from your current provider, then give that code to your new provider along with your account number and billing phone number. Your new provider handles most of the work — they file the transfer request, and your old provider has one to three business days to approve it. During the transfer window, your phone may be down for a few hours to a full day. You keep your phone number throughout the process.

The steps are straightforward, but timing matters. If you move too fast, your old provider may not have processed your final bill. If you wait too long after getting your transfer code, it may expire. Most codes last 30 days, though some providers set shorter windows.

Key Takeaways

  • You need your transfer authorization code from your current provider before your new provider can start the switch.
  • Your new provider files the transfer request and handles communication with your old provider — you do not need to contact them directly.
  • The transfer usually takes one to three business days, and your phone may be unavailable for a few hours during the cutover.
  • Keep your old account active until the transfer completes, because your old provider needs to approve the request.
  • You can transfer a landline, mobile phone, or business line using the same process.

Getting your transfer authorization code from your current provider

Call your current provider's customer service line or log into your online account to request the transfer authorization code. Have your account number and billing phone number ready. The representative will ask why you are leaving and may offer you a retention deal — you can accept or decline, but either way, ask for the code in writing or take note of it immediately.

Some providers email the code, some text it, and some read it to you over the phone. Write it down or screenshot it. The code is usually a four- to six-digit number, though some providers use longer alphanumeric codes. Do not share it with anyone except your new provider.

If your current provider refuses to give you the code or tells you that you cannot transfer, that is not legal — the FCC requires all providers to issue transfer codes. Ask to speak to a supervisor or file a complaint with your state's public utilities commission if you hit resistance.

Choosing a new provider and starting the transfer

Once you have your code, contact your new provider and tell them you want to transfer your existing number. They will ask for your transfer authorization code, account number, and billing phone number from your old account. Provide the code exactly as your old provider gave it to you — do not guess at digits or try to correct it yourself.

Your new provider will also ask which services you want to transfer. If you have a landline with voicemail, call waiting, or other features, mention them now so the new provider can set them up. Ask when the transfer is expected to complete — most providers give you a date range of one to three business days.

Do not cancel your old account. Your old provider needs to approve the transfer request, and they cannot do that if the account is closed. You will be billed for service up to the day the transfer completes, then your old provider will send a final bill.

What happens during the transfer window

After your new provider files the request, your old provider has until the end of the next business day to approve or deny it. Most approvals happen within 24 hours. During this time, your phone should still work on your old service — do not assume the transfer has failed if you do not hear anything.

On the day the transfer completes, your phone will likely go down for anywhere from a few minutes to several hours. This is normal. When service returns, you will be on your new provider's network. Your phone number stays the same, but your voicemail greeting, call forwarding settings, and other customizations will reset to the new provider's defaults — you will need to set those up again.

If your phone does not come back online after 24 hours, contact your new provider's customer service. Transfers occasionally stall if there is a mismatch in account information or if your old provider flagged an issue with your account (such as an unpaid balance).

Handling billing and final payments

Your old provider will send you a final bill for service through the day the transfer completed. This bill may take one to two weeks to arrive. Pay it on time, even if you are unhappy with the service — an unpaid balance can affect your credit and may prevent you from transferring service in the future.

Your new provider's first bill will start from the transfer date. If you signed up for a promotional rate or contract, confirm that the promotion appears on your first bill. If it does not, contact them within the first few days of service — most providers will honor the promotion if you catch the error early.

If your old provider charges an early termination fee, ask whether it applies to your transfer. Some providers waive the fee if you are switching due to a move or service issue. If you are charged and believe it is unfair, you can dispute it with your state's public utilities commission, though the process takes time.

Transferring a business line or landline

Business lines and residential landlines follow the same transfer process as mobile phones. You still need a transfer authorization code, and the new provider still files the request. The main difference is that business lines may have more complex features — such as multiple extensions, call routing, or integration with a phone system — that do not always transfer cleanly.

Before you transfer a business line, ask your new provider whether they support all the features you currently use. Some smaller providers do not offer call forwarding to multiple numbers or voicemail-to-email, for example. If a feature is critical to your business, confirm it works on the new provider's system before you start the transfer.

Landlines tied to a home security system or medical alert device need special attention. The transfer itself works the same way, but you should test the connection to your security company or alert service after the transfer completes to make sure the signal still reaches them.

What to do if the transfer fails or gets stuck

If your transfer does not complete within three business days, contact your new provider first. They can check the status with your old provider and tell you whether the request was approved, denied, or is still pending. Common reasons for delays include a mismatch in your account information, an unpaid balance on your old account, or a technical error in the transfer request.

If your old provider denied the transfer, ask your new provider why. The denial reason will be in the transfer record. If it is an error — for example, your old provider says you have an unpaid balance that you actually paid — you may need to contact your old provider directly to correct it, then ask your new provider to file a new transfer request.

If the transfer is stuck and neither provider can explain why, file a complaint with the FCC's Consumer Complaint Center. Include your transfer authorization code, the dates you requested the transfer, and the names of both providers. The FCC can compel your old provider to complete the transfer.

Frequently Asked Questions

Can I transfer my phone number if I owe money to my old provider?

It depends on the provider and the amount owed. Some providers will complete the transfer even if you have an unpaid balance, then pursue collection afterward. Others will deny the transfer until you pay. If your old provider denies the transfer due to an unpaid balance, pay what you owe or set up a payment plan, then ask your new provider to file a new transfer request.

How long does a transfer authorization code last?

Most codes expire after 30 days, though some providers set shorter windows of 14 or 21 days. Check with your provider when you request the code. If your code expires before you use it, you can request a new one at no charge.

Will I lose my voicemail messages during the transfer?

Yes. Voicemail is stored on your old provider's servers, and it does not transfer to the new provider. Before you start the transfer, save any important voicemail messages by recording them or writing down the information. After the transfer, your new provider will set up a new voicemail box.

What if my new provider says they cannot transfer my number?

This is rare but can happen if your number is very old, if it is tied to a business account with special restrictions, or if there is a technical issue. Ask your new provider specifically why they cannot transfer it. If they cannot give you a clear reason, contact the FCC — providers are required to accept number transfers except in very specific circumstances.

Can I transfer my phone number to a different type of service, like from a landline to a mobile phone?

Yes. You can transfer a landline number to a mobile carrier, or a mobile number to a landline or VoIP provider. The process is the same — you get a transfer code from your old provider and give it to your new provider. The new provider will set up the number on their network.