You can transfer your landline number to a cell phone, but the process depends on whether your new carrier is the same company or different
Moving your landline number to a cell phone is called number porting. Your current phone company must release the number, and your new cell carrier must accept it. If both companies are the same — for example, you have a landline with Verizon and want to switch to Verizon mobile — the transfer usually takes a few hours. If you're switching to a different company, the process takes longer and requires more steps from you.
The number itself stays the same throughout. You keep the same digits, area code, and everything else. What changes is which company bills you and which network carries your calls.
Key Takeaways
- Number porting works only if your landline is in your name and the account is in good standing with no unpaid bills.
- Transferring to the same company (Verizon to Verizon, AT&T to AT&T) takes hours; switching to a different company takes three to five business days.
- You will need your account number, PIN or password, and the phone number you want to port before you contact your new carrier.
- Your old landline account will close after the port completes, so contact any services that use that number (banks, doctors, employers) before you start.
What information you need before you start
Gather these details from your current landline bill or account before you contact your new cell carrier. You cannot port the number without them.
Your account number appears on your monthly bill, usually near the top or in a section labeled "Account Information." Your PIN or password is what you use to log into your account online or over the phone. If you don't remember it, call your current provider and ask them to reset it or verify your identity so you can proceed. Your phone number is the landline number itself — the one you want to keep. Write down the full number including the area code.
You will also need to know your service address — the physical location where the landline is installed. This must match what your current provider has on file.
Porting within the same company
If your landline and your new cell phone will both be with the same carrier, contact that company's customer service by phone or through their website. Tell them you want to port your landline number to a mobile line. They will verify your identity, confirm the account is in good standing, and start the transfer.
The process usually takes a few hours to one business day. During this time, your landline will stop working and your cell phone will take over the number. You may experience a brief gap of 15 to 30 minutes where neither service has the number. Your old landline account will close automatically.
Some carriers offer this as a single transaction — you can set up the cell phone and port the number in one call. Others require you to set up the cell phone first, then request the port separately. Ask the representative which applies to you.
Porting to a different company
If you're switching to a different cell carrier, the new company handles most of the work. Call the new carrier or visit a store and tell them you want to port your existing landline number. Provide your account number, PIN or password, and phone number from your current provider.
The new carrier will submit a Local Service Request (LSR) to your current provider. This is an official order to release the number. Your current provider has three to five business days to approve or deny the request. If they approve it, the number transfers to your new carrier. If they deny it, the new carrier will tell you why — usually because the account has unpaid charges or the number is not in your name.
During the port window, your landline may go in and out of service. Keep it connected until the port is complete. Once the number rings on your new cell phone, the old landline is no longer active.
What happens to your old landline account
Your landline account closes when the port completes. You will receive a final bill from your current provider covering service through the port date. Pay this bill on time to avoid collection activity.
Before you start the port, contact any services that have your landline number on file. This includes banks, insurance companies, doctors' offices, employers, and government agencies. Update them with your new cell number or a different contact method. If you don't, they will not be able to reach you, and you may miss important calls about accounts or appointments.
If you have a home security system, fax machine, or medical alert device connected to your landline, those will stop working after the port. You will need to update those services separately or switch to a different connection method.
Why a port might be denied or delayed
Your current provider can deny the port request if the account has unpaid charges, if the number is not registered in your name, or if there is a dispute about the account. If this happens, the new carrier will tell you the reason and what you need to do to fix it.
The most common issue is an unpaid balance. If your account is past due, pay it before you request the port. The second most common issue is that the number is in someone else's name — a spouse, parent, or previous owner. You will need to contact your current provider and have the account transferred to your name first.
Ports can also be delayed if your current provider is experiencing high volume or technical issues. If your port does not complete within five business days, contact your new carrier and ask them to follow up with your old provider.
Keeping your number if you move to a different state
You can port your landline number to a cell phone even if you move to a different state, but there are limits. Most carriers allow you to keep a number from a different state for a limited time — usually 30 to 90 days. After that, you may be required to change to a number with your new area code or pay an extra monthly fee.
Ask your new cell carrier about their policy on out-of-state numbers before you port. Some carriers are more flexible than others. If you want to keep the number long-term, confirm they will allow it and what it costs.
Frequently Asked Questions
Can I port my landline number if I still owe money on the account?
No. Your current provider will deny the port if the account has unpaid charges. Pay the balance in full, then request the port. Once the port completes, you will receive a final bill for any remaining charges through the port date.
What if my landline is in my spouse's name but I'm the one porting it?
The number must be in your name to port it. Contact your current provider and ask to have the account transferred to your name. This usually takes a few days. Once the transfer is complete, you can request the port.
Can I keep both my landline and cell phone with the same number?
No. When you port the number, your landline account closes and the number moves entirely to your cell phone. You cannot have both active at the same time.
How long does it take to port a number to a different carrier?
Three to five business days from the time your new carrier submits the request. The actual port — when the number switches over — usually happens overnight on the final day. You may experience a brief gap where neither service has the number.
What should I do if my port fails?
Contact your new carrier when ready and ask why the port was denied. The most common reasons are unpaid charges on the old account, the number being in someone else's name, or a technical error. Your new carrier can resubmit the request once you fix the issue.