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What Is a Virtual Phone Number? How It Works, Costs and Limits

What Is a Virtual Phone Number? How It Works, Costs and Limits

Serpius Dento
Serpius Dento
•11 min read

A virtual phone number is a real phone number that is not tied to a SIM card or a physical phone line. When someone dials it, the call travels over the internet to wherever you have the service open: an app, a web browser, a desk phone or another phone the number forwards to. To the caller it looks and costs like any other number with the same area code.

That one difference, a number that lives with a provider instead of in a device, explains both what virtual numbers are good at and where they fail.

What happens when someone calls a virtual number

Ordinary phone numbers belong to a network that routes calls to one SIM or one copper line. A virtual number belongs to a provider that routes calls wherever you tell it to. Step by step:

  1. Someone dials the number from any phone, anywhere. Nothing changes for them.
  2. The phone network hands the call to your provider, the same way it would hand a call to any other carrier that owns that number.
  3. The provider looks up your settings and sends the call over the internet using VoIP (voice over internet protocol).
  4. It rings where you are: in an app on your phone, in a browser tab on your laptop, on an office desk phone, or forwarded to your regular mobile.
  5. When you call out, the same thing happens in reverse, and the person you call can see the virtual number as your caller ID if the provider supports it.

Because the number is not attached to hardware, you can be in another city or another country and the number still behaves like a local one.

Local, toll-free and mobile-style numbers

Providers usually sell three kinds of number. They differ in who pays for the call and how callers perceive them.

TypeWhat it looks likeWho pays for the callGood forWatch out for
Local (geographic)A normal area code, such as a 212 New York or 312 Chicago numberThe caller pays what they would pay for any local or long-distance callFamily, clients and anyone who should feel they are calling a local numberPopular area codes can run short
Toll-free800, 833, 844, 855, 866, 877 or 888 in the USYou, the number owner, pay for incoming minutesBusinesses that want customers to call freeMany toll-free numbers cannot be dialed from outside the US and Canada
Mobile-styleA number from a country's mobile range, such as UK numbers starting 07Depends on the country's rulesCountries where people expect a mobile numberIn the US, mobiles and landlines share area codes, so this type only matters abroad

For most people, a local number is the right choice. It is the cheapest for callers and the least likely to be ignored.

What a virtual number can and cannot do

What it does well:

  • Takes incoming calls anywhere you have internet. WiFi, home broadband or mobile data all work.
  • Shows a consistent caller ID when you call out, so people see the same number whether you are at home or abroad.
  • Rings on several devices, or forwards to another phone, depending on the provider.
  • Keeps your personal number private. You give out the virtual number and keep your mobile number to yourself.

What it often cannot do:

  • Receive verification codes. Banks, payment apps, messaging apps and many websites send one-time codes by text. A lot of them check the type of number and refuse internet-based ones, or accept them for a while and then stop. Treat any virtual number as unreliable for codes, even if it supports texting.
  • Send and receive SMS at all. Some virtual numbers handle texts, many are voice only, and texting is often a paid extra. Check before you buy if texts matter.
  • Work without power or internet. If your connection drops, calls go to voicemail or forwarding, depending on the provider.
  • Replace your mobile for emergency calls. Read your provider's emergency calling terms, and keep a mobile or landline for emergencies.

If your main need is a number that receives codes, keep a real mobile line. Our guide to keeping your US number when you move abroad covers the cheapest ways to do that.

What virtual numbers cost

Prices vary too much between providers to quote one figure, but every bill is built from the same few parts. Knowing them lets you compare providers properly.

Cost componentWhat it isWho usually charges it
Monthly number feeRent for the number itselfAlmost every provider
Outgoing minutesCalls you make from the numberPer minute, or bundled in a plan
Incoming minutesCalls you receiveSome providers, always for toll-free numbers
Text messagesSending and receiving SMSOften an add-on, if offered at all
Per-user seatsExtra people answering the same numberBusiness phone systems
Setup or porting feesBringing an existing number in, or taking it outVaries

A few anchors from providers' own pages: Google Voice for personal accounts makes most calls from the US to the US and Canada free, with calls to some numbers costing 1 cent a minute, as of October 2026 (Google Voice Help). Business phone systems typically charge a monthly price per user. Pay-as-you-go services charge for the number each month and for the minutes you use.

Rules, regulation and ID documents

Phone numbers are a national resource, and every country decides who may hold its numbers. That is why buying a virtual number can feel quick in one country and slow in another.

  • Some countries require identity documents before a number is assigned, such as a passport or proof of address. This is a legal requirement in those countries, not a provider being difficult.
  • Some numbers require a local address, especially geographic numbers in parts of Europe.
  • Toll-free and special numbers have their own rules about who can call them from where.
  • You can often take a number with you. In the US you can usually move (port) a number between providers, including many internet phone providers. Check that a provider allows porting out before you commit, especially for a number you plan to keep for years.

If a provider sells a number from a country with strict rules and asks for nothing, ask why. A number that is later withdrawn for missing paperwork is worse than no number.

Five situations where a virtual number makes sense

Expats who want family and banks to reach them

If you move abroad, a US number lets relatives call you at domestic rates and gives US banks and offices a number they will dial. Our guide to getting a US virtual phone number from outside the US compares the options, including the area code choice.

Small businesses that want a local presence

A business in Denver can take a New York number for its East Coast clients, or a sole trader can publish a number that rings on a laptop during working hours and goes to voicemail after. Customers see a normal local number; nobody needs to know where the phone is. The same time-zone gap applies to everything else you publish for those customers: a social media scheduler such as Lemonpost can queue posts for their morning while you are asleep.

Separating work from personal calls

A second number on the phone or laptop you already own keeps clients, marketplace buyers or landlords off your personal mobile. When the job ends, you drop the number and your own stays private.

Travelling without a local SIM

Abroad, a virtual number keeps ringing over hotel WiFi while your SIM is off. When you call home, people see a number they recognize rather than an unknown international one, so they are more likely to answer.

Testing phone systems and campaigns

Developers and support teams use virtual numbers to test call menus, call recording and voicemail from the caller's side. Marketers use separate numbers on different ads or flyers to see which one makes the phone ring. Short-term numbers suit this well because you can release them when the test is over.

How to choose a virtual phone number provider

There is no single best virtual phone number; there is the best fit for the job you need done. Before paying anyone, check:

  1. Can I get the country and area code I want? Ask before signing up, not after.
  2. Where does it ring? App, browser, desk phone or forwarding. If you cannot install apps on a work laptop, a browser option matters.
  3. Can I call out with it as caller ID? Some services only take incoming calls.
  4. Does it do texts, and do I need them? If yes, test with the services you actually use before relying on it.
  5. What are the full monthly costs? Number fee, minutes, seats and any texting add-on.
  6. What documents are required for the country you are choosing?
  7. Can I port the number out later?
Provider typeRings inCalls out with the numberTextsTypical billing
Google Voice (personal)App and browserYesYes, in supported marketsFree for most US and Canada calls
Business phone systemsApp, desk phone, forwardingYesOften, as an extraMonthly per user
Second-number appsSmartphone appYesOftenMonthly subscription
BoraPhoneBrowser tabYesNo, voice onlyMonthly number fee plus pay-as-you-go minutes

BoraPhone's virtual numbers ring in a browser tab in Chrome, Edge, Safari or Firefox on a laptop, tablet or phone, with nothing to install. You can show the number as caller ID when you call out, or verify a number you already own and show that instead. The numbers are for voice calls only, so they will not receive texts or verification codes. The monthly price is shown on the pricing page before you buy, and some countries require identity documents. Calls are pay-as-you-go from a $5 top-up, with no subscription for calling.

Frequently asked questions

Can I get a virtual telephone number?

Yes. Most providers let you choose a country and area code online and assign a number within minutes, though some countries require ID or proof of address first. You need an internet connection and a device to answer on, such as a smartphone app or a web browser.

Can a virtual number be traced?

The number is always assigned to a provider, and anyone can usually see which carrier holds a number. The provider keeps account records, such as your email, payment details and any ID you supplied, and can be required to hand them to authorities under the law of its country. A virtual number keeps your personal mobile number private from the people you call; it does not make you anonymous.

Can I use a virtual number for WhatsApp?

Sometimes, but do not count on it. WhatsApp and similar apps verify your number by text or call, and many refuse internet-based numbers or later block them. If WhatsApp matters to you, register it with a real mobile number you will keep.

Is a virtual phone number free?

Some services offer free numbers with limits, for example Google Voice for personal accounts in the US. Most charge a monthly fee for the number plus call charges. Some free numbers are taken back if you stop using them, so check the provider's inactivity rules.

Is a virtual number the same as a VoIP number?

Nearly. A VoIP number is any number whose calls run over the internet, and a virtual number is a VoIP number that is not tied to a particular device or address. In everyday use, providers use the two terms for the same thing.

Serpius Dento

Written by

Serpius Dento

Serpius works with communication and customer relations at BoraPhone. With hands-on experience helping users navigate international calling, he writes practical guides based on real conversations with customers worldwide.

Customer CommunicationInternational TelecommunicationsVoIP Technology

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