VoIP Numbers and Scam Calls: What a VoIP Line Means
A VoIP or virtual number is a phone number that works over the internet instead of a traditional line or SIM card. Scammers use them because they are cheap, quick to set up and easy to drop. Many honest businesses use them too, so a VoIP result is a reason to check, not proof of fraud.
What a VoIP or virtual number is
VoIP stands for Voice over Internet Protocol: calls carried as data over an internet connection. A VoIP or virtual number is a regular ten-digit number connected to an internet calling service instead of a copper phone line or a SIM card in one phone.
You have probably used one without noticing. Office phone systems, many home phone bundles, clinic and call centre lines, and second-line apps on a mobile phone often run on VoIP. Behind them are carriers that hold blocks of numbers and supply them to these services. In Toronto’s area code 437, for example, Iristel Inc. holds 58 prefixes and Fibernetics Corporation holds 10, according to the Canadian Numbering Administrator data TrustOrNah loaded in October 2026.
Is a VoIP number the same as a fake number?
No. A VoIP number is a real, assigned number that can make and receive calls. A fake or spoofed number is a caller ID that the caller typed in and does not control. A scammer can use a real VoIP number, or display a spoofed number on any call, so the two are separate questions.
Why scammers use VoIP numbers
The features that make VoIP convenient for a small business also suit a scammer:
- Speed. A number can be set up online in minutes, with no store visit and no physical SIM.
- Cost. Numbers are cheap, and calling platforms can place many calls at once.
- Location. A caller can pick a number in any area code, so a call from abroad shows a local-looking number.
- Disposability. When a number collects complaints or gets blocked, it can be dropped and replaced.
Many internet calling platforms also let the sender set the caller ID, which is how spoofing works. Since November 30, 2021, the CRTC has required Canadian carriers to authenticate caller ID on internet-based calls using STIR/SHAKEN, which makes it harder to show a number you do not control. It does not stop a scammer from using a number they really rented.
Can you find out who owns a VoIP number?
Not publicly. Numbering records show which carrier holds the number block, and that carrier, or the service it resold the number to, knows the customer account. Those records are private and are released to police through legal process, not to the public. No free lookup can legitimately show you the account holder’s name.
Why a VoIP line is not proof of a scam
Plenty of honest calls come from VoIP lines: your dentist’s reception desk, a contractor using a business app, a charity’s volunteer calling from home, a courier dispatch office. Treating every VoIP number as a scam would mean ignoring them all.
The useful question is whether the line type fits who the caller says they are. A small business on VoIP is normal. A caller who claims to be your bank’s fraud department, the CRA or the police, and asks you to act immediately, deserves a call back on a number you look up yourself, whatever kind of line it is.
How the lookup tells
TrustOrNah’s phone lookup reads the first six digits of the number and finds which carrier holds that prefix in the official numbering records: CNAC for Canada, refreshed daily, and NANPA for the US. If the carrier is one that mainly supplies internet calling services, the result says “Likely VoIP / virtual number”. Mobile carriers show “Likely mobile”, and the rest show “Landline or business line”.
The word “likely” matters. The CRTC has required number portability for landlines since 1997, and wireless number portability arrived on March 14, 2007. People can keep their number when they switch providers, so a number can move from a VoIP provider to a mobile carrier or back. The prefix shows the original holder, not always the current one. The lookup also adds visitor reports for the exact number and, for US numbers, complaints filed with the FCC, which tell you more than the line type alone.
What to do now
- Look up an unknown number before you call back, and read the line type together with any reports.
- Judge the call by what it asks for: money, codes or personal details are the red flags.
- Call organizations back on a number from their website, your card or your statement.
- Report scam calls to the Canadian Anti-Fraud Centre at 1-888-495-8501.