VoIP, Landline or Mobile Checker
Find out whether a phone number is a mobile, landline, or VoIP line such as Google Voice or Twilio. A free line type checker, with no sign-up.
How it works
- 1
Enter the number
Type or paste a phone number and pick its country.
- 2
Check the line
Hit Look up. We work out whether it's a mobile, a landline, or a VoIP line.
- 3
Read the result
You see the line type, the carrier, and for VoIP, our best guess at the provider, like Google Voice or Twilio.
Mobile, landline, and VoIP: what's the difference?
A mobile number lives on a cell network and can get text messages. A landline is a fixed line at a home or office, and it usually can't receive texts. A VoIP number runs calls over the internet. Services like Google Voice, Twilio, and Skype hand these out, often for free and in seconds.
Why the line type matters
If you're texting, only mobile and some VoIP numbers reliably get SMS. If you're watching for fraud, throwaway VoIP numbers are a classic sign of bots and fake signups. And if you're calling, knowing the line type tells you what to expect before you dial.
Frequently asked questions
- How can I tell if a number is VoIP?
- Pop it in above. If the line type comes back as VoIP, it's an internet calling line rather than a regular mobile or landline.
- Can you detect Google Voice or Twilio numbers?
- When the carrier behind the number is a known VoIP provider, we'll name it, like Google Voice, Twilio, or Bandwidth. Networks don't always expose the exact provider, so treat it as a strong hint rather than gospel.
- Is a VoIP number fake or risky?
- Not on its own. Millions of people use VoIP numbers like Google Voice every day. But because they're easy to spin up in bulk, they show up more often in spam and fraud, which is why a lot of signup forms check for them.
- Can a mobile number show up as VoIP?
- Once in a while, yes. Number portability and wholesale routing can muddy the water. The result reflects the best data available for that number.
- Does checking the line type cost anything?
- No, it's free and there's no sign-up. A reasonable per-visitor limit keeps things fair.