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Free tool

IP Checker

Use your proxy, phone or profile to open this page and see exactly what a website sees: the address, whether it's AT&T, T-Mobile or Verizon, the metro it resolves to, and whether your browser time zone or WebRTC tells a different story.

Checking…
Your IP
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Mobile carrier
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ISP / organisation
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ASN
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Location
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IP time zone
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Browser time zone
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Time zones
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WebRTC
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Browser languages
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User agent
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How to read it

You'll see a US mobile carrier as the ISP on a 4G Proxies USA line, as the address is in the carrier's pool and many real phones share it through carrier-grade NAT. It shows the metro or state as location, not a street. It's two things that give an account away: a browser time zone that disagrees with the IP and a WebRTC candidate exposing your home or office address. Go into the browser profile to fix those, then check again.

Deeper checks on IPFighter

IPFighter has free tools that give a full fingerprint, bot-detection and DNS-leak report on the same connection:

IP score & lookup ↗ Browser fingerprint ↗ Bot detection ↗ DNS leak test ↗ WebRTC leak test ↗

Your IP is looked up through this site's own /api/ip endpoint and the public ipwho.is network database. Nothing is stored.

Want the IP to say "mobile carrier"?

Dedicated 4G and 5G lines in eight US metros, and both sticky sessions and unlimited rotation.

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