Transfer Landline Number to Cell Phone: Forwarding vs Porting
Your shop number has been on the truck, the yard signs and the Google listing for 15 years. Now the office is empty most of the day, and the landline rings to nobody while you’re on a job across town.
If you want to transfer landline number to cell phone without losing a single customer, there are two ways to do it. Forwarding keeps the landline account and sends its calls to your cell. Porting moves the number itself to a wireless carrier, and the landline account closes. Both keep the number customers already know. They differ on cost, on what breaks, and on how easy it is to undo.
This guide covers the steps for each, the parts that catch business owners out, and what neither option fixes. If you want to hand a live call from one phone to another during a conversation, that’s a different job, covered in our guide on how to transfer a phone call.
Transfer landline number to cell phone: forwarding vs porting
| Call forwarding | Number porting | |
|---|---|---|
| Who owns the number afterward | Your landline carrier | Your wireless carrier |
| Landline bill | Keeps running | Closes after the port |
| How fast | Minutes | One business day or a few days |
| Easy to undo | Yes, turn it off | Only by porting again |
| Outbound caller ID | Your cell number | The business number |
| Best for | Testing, seasonal setups, keeping the landline for fax or alarm | Retiring the landline for good |
The short version: forward first if you’re not sure, port when you know the landline has nothing else to do.
How to forward a landline to a cell phone
Forwarding is a feature on the landline account. You turn it on, calls to the business number ring your cell, and the landline itself stays in service.
Turn on forwarding
On many US landlines, the steps look like this:
- Pick up the landline and listen for a dial tone.
- Dial the forwarding code (commonly
*72), then your 10-digit cell number. - Wait for a confirmation tone or for your cell to ring, and answer it if it does.
- Hang up. Calls now forward.
- To turn it off, dial the cancel code (commonly
*73) from the landline.
Codes differ by carrier and by plan, and some business lines manage forwarding from an online portal instead. Check your carrier’s support page or call them before relying on a code you found online.
Forward all calls or only missed ones
Most carriers offer two kinds of call forwarding:
- Unconditional forwarding. Every call goes straight to your cell. The landline never rings.
- Conditional forwarding (busy or no-answer). The landline rings first. If nobody picks up, or the line is busy, the call moves to your cell.
Conditional forwarding is the better fit when someone still sits at the front desk some of the day. Our guide to call forwarding to an answering service walks through the same choice when the destination is a service instead of your own phone.
What forwarding doesn’t do
- You pay for two lines. The landline account stays open, along with any monthly fees and per-minute forwarding charges your plan has.
- Outbound calls show your cell. When you call a customer back, they see your personal number, not the shop number.
- Missed forwarded calls land in your cell voicemail. Customers hear your personal greeting unless you change it.
- A power or line outage at the shop can stop forwarding on some setups, depending on how the carrier handles it.
How to port a landline number to a cell phone
Porting moves the number to a new carrier. Federal rules back you here. The FCC’s consumer guide on keeping your phone number when you change providers says porting works between wireline, IP and wireless providers as long as you stay in the same geographic area.
Steps to port the number
- Do not cancel the landline first. The FCC is explicit: start new service before ending the old one. If you cancel, the number can be released and lost.
- Pull the account details from the landline bill. You’ll typically need the account number, the account holder name and service address exactly as the carrier has them, and any account PIN.
- Contact the new wireless carrier and ask to port the number onto a new line or an existing phone. Give them the 10-digit number and the account details.
- Keep the landline working until the port completes. The new carrier tells you when the number is live on the cell.
- Test it. Call the business number from another phone and confirm it rings the cell. Check that texts arrive too.
How long porting takes
FCC rules require simple ports to be processed in one business day. The same FCC guide notes that porting from wireline to wireless “may still take a few days.” Plan for a short overlap. The FCC also warns that during the switch you may briefly have two phones with the same number, and wireless 911 callback may be affected.
Ports that aren’t simple
A single residential-style line is usually straightforward. These setups often aren’t:
- Several lines that roll over to each other when one is busy (often called a hunt group).
- A landline that also carries fax, a burglar alarm or a card terminal. Those services stop when the line moves.
- Bundled internet on the same copper line.
- Rural carriers that hold a state waiver from porting rules. The FCC says customers in that spot should contact their state public utilities commission.
- A move to a different area. Porting generally only works if you stay in the same geographic area.
Fees and the port-out PIN
The FCC says carriers may charge a porting fee and that you can ask for it to be waived. Your old carrier can’t refuse to port the number even if you owe a balance or an early termination fee, though you still owe that money.
Once the business number lives on a cell account, protect it. Port-out fraud, where someone moves your number to their own phone, is common enough that the FCC has a page on port-out fraud and how to guard against it. Ask your wireless carrier to add a port-out PIN or lock. For a business, the number is the storefront.
Which option fits your business
Forward the number if:
- You’re not sure yet whether the landline is going away.
- The landline still carries fax, an alarm or a card reader.
- The setup is seasonal, such as a storm season or a slow winter.
- You want something you can reverse with one code.
Port the number if:
- Nothing else depends on the landline.
- You’re paying for a line nobody answers.
- You want callbacks to show the business number.
- You’re ready to treat one cell as the business line for the long term.
A third path many shops end up on: port the number to a VoIP or business phone service instead of a personal cell. You keep the number, it rings an app on your cell and on any other phone you choose, and personal and business calls stay apart. Our overview of phone systems for small business covers what to look for.
The part neither option fixes: missed calls
Moving the number changes which phone rings. It doesn’t add anyone to answer it.
Before, the landline rang in an empty office. After, it rings in your pocket while you’re on a roof, under a sink, or driving between jobs. If you can’t pick up, the caller still reaches voicemail, and a lot of callers don’t leave one. They dial the next listing. We run the numbers in our post on the cost of missed business calls.
A few things soften that once the number is on your cell:
- A business voicemail greeting. Replace your personal greeting with one that names the business and says when you’ll call back.
- A missed call text back. The caller gets a text within moments, even if they hang up without a message.
- Conditional forwarding to someone who can answer. Ring your cell for a set number of rings, then roll to an office manager, an answering service, or an AI receptionist. Our comparison of AI receptionists vs answering services lays out the trade-offs.
If calls already go to voicemail when they shouldn’t, check the settings in our list of why calls go straight to voicemail before blaming the port.
FAQ
Can I transfer my landline number to my cell phone? Yes. You can forward the landline’s calls to your cell, which keeps the landline account open, or port the number to your wireless carrier, which moves the number and closes the landline. The FCC says porting works between wireline and wireless providers if you stay in the same geographic area.
How long does it take to port a landline number to a cell phone? FCC rules require simple ports to be completed in one business day. Wireline-to-wireless ports may take a few days, according to the FCC. Keep the landline active until the new carrier confirms the port is done.
Will I lose my number if I cancel my landline? You can. Cancel only after the port completes. The FCC advises starting service with the new company before terminating service with the old one.
What’s the code to forward a landline to a cell phone?
Many US landlines use *72 followed by the 10-digit destination number, and *73 to cancel. Codes vary by carrier and plan, so confirm with your provider.
Can I port a business landline number to a personal cell? Usually yes, but the business number then sits on a personal account. Check whether your carrier allows business numbers on that plan, and add a port-out PIN.
Answer the number wherever it rings
Moving your landline number to a cell puts every call in your pocket. It doesn’t help when your hands are full.
InstaNexus AI answers calls 24/7, asks your intake questions, books appointments into your calendar, and texts and emails you a summary when the call ends. Urgent calls get warm-transferred to whoever’s on call. Point your no-answer forwarding at it and the business number gets answered whether you’re free or not. See how the InstaNexus AI receptionist works.