Enter the number
Type it in international format if you can. Pick a country if the number has no + code.
Free VoIP Number Lookup
Check whether a phone number is VoIP, mobile, or fixed line. Instant verdict, plus carrier, country, and time zone details. No sign-up. 100% free. Unlimited checks.
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Ready to check
Enter a phone number to see whether it is VoIP, mobile, or fixed line.
VoIP verdict — line type
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VOIP means the range belongs to an internet-based phone service. MOBILE and FIXED_LINE mean standard phone ranges.
Validity
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Country / Region
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Geographic area
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Original carrier
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Time zone
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Possible countries
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E.164 format
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Other standard formats
International
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National
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Dial URI
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Checking a whole list?
Screen your list for VoIP numbers in bulk
This free tool checks one number at a time. The bulk VoIP checker processes entire CSV or TXT files with line type, live status, and risk scoring in one pass.
100% free to use
No sign-up required
Unlimited checks
How it works
Check a number in 3 steps
Read the verdict
The line-type card shows VOIP, MOBILE, FIXED_LINE, or another range class instantly.
Weigh the context
Check the carrier and country next. A VoIP result plus an unexpected country is a strong spam signal.
Reading the result
What each line type means
The lookup classifies the number against the country's numbering plan. Each range class tells you something different about who is likely on the other end.
| Line type | What it is | Typical callers |
|---|---|---|
| VOIP | Internet-based phone service. Cheap to get, easy to discard. | Google Voice, TextNow, Skype, business PBX systems - and a large share of robocall and scam operations |
| MOBILE | Standard cellular range assigned to a mobile operator. | Real people on phones, verified by SIM registration in most countries |
| FIXED_LINE | Geographic landline range tied to a city or region. | Homes, offices, and government lines - the area field shows the city |
| TOLL_FREE / other | Service ranges such as toll-free, premium rate, shared cost, and pager ranges. | Business hotlines and service numbers, rarely personal contacts |
Context
Why so many unknown numbers are VoIP
VoIP numbers cost nothing or close to it. Apps hand them out free, and businesses buy them by the thousand for call centers and SMS campaigns. That same cheapness is why they dominate spam call reports: a scammer can burn a VoIP number in a morning and get a new one after lunch.
But a VoIP verdict is not automatically bad news. Legitimate uses are everywhere - customer support lines, remote teams, two-factor authentication services, delivery notifications. The useful question is whether the VoIP result fits the story: a VoIP number claiming to be your bank's local branch is a red flag, while a VoIP number on your airline's confirmation email is normal.
For a deeper background, read what VoIP numbers are and how to detect them. And keep the limits in mind: this page reads numbering-plan metadata, so it shows the range's original class. It cannot tell you whether the number is currently active or was ported to a different provider.
Data source & limits
What the lookup can - and cannot - tell you
What you get
- • Line-type classification (VOIP, mobile, fixed line, toll-free, and more) for 240+ countries
- • Numbering-plan validity
- • City or region for geographic numbers
- • Original range carrier for mobile numbers
- • IANA time zones and standard number formats
What it cannot do
- • No live active/disconnected status
- • Line type reflects the original range allocation, not porting
- • Mobile numbers have no city - only the range operator
- • No spam score or caller-reputation data
Need live answers on real lists? The bulk VoIP checker combines line type with live active status and risk signals across whole CSV files, or via API.
FAQ
Free VoIP Number Lookup FAQ
Quick answers about checking whether a number is VoIP.
How do I check if a number is VoIP?
Type the number into the lookup above. The tool classifies the line against the country's numbering plan and flags ranges allocated to internet-based services such as Google Voice, TextNow, Skype, and business VoIP providers.
Is the lookup really free and unlimited?
Yes. The check runs entirely in your browser against open numbering-plan data. There is no per-query limit, no account, and nothing is sent to a server.
What does it mean when a number shows as VoIP?
The number range was allocated to an internet-based phone service. Scammers use VoIP numbers because they are cheap and disposable, but legitimate businesses use them too. Treat the result as one signal, not a verdict.
Can a VoIP number show as mobile?
The line type reflects the original range allocation. If a provider ports the number or range data lags, the classification can be out of date. For high-stakes decisions, confirm with a live server-side check.
Does the result include the carrier?
Yes, for mobile ranges the tool shows the operator that originally owns the range. This is the original allocation, not the current carrier after porting.
How do I check thousands of numbers for VoIP?
This page checks one number at a time. For whole lists, the bulk VoIP checker processes CSV files with line type, live status, and risk scoring in one pass.
Are my numbers stored or sent anywhere?
No. Parsing and matching happen locally in your browser. Nothing you type is transmitted to a server or logged.
How is this different from the Free Phone Validator?
The Free Phone Validator runs a live server-side check with a free usage limit. This page is offline numbering-plan metadata - unlimited, but without live active status. Use both: metadata first, live checks before sending.