Free IP Lookup
Investigating an IP — for a suspicious login, server setup or analytics anomaly? Browsers can't geolocate IPs locally, so NToolHub's IP Lookup validates your IPv4/IPv6 address and routes you to the best lookup services (ipinfo.io, WhatIsMyIPAddress, AbuseIPDB) with one click — plus honest guidance on what geolocation can and can't tell you.
How to Use the IP Lookup
- Enter the IPv4 or IPv6 address to investigate.
- Click Get IP Lookup Links.
- Open a lookup service to see location, ISP and ASN data.
- Treat geolocation as approximate — it reflects network routing, not a street address.
Features
IPv4/IPv6 validation with octet checking, then one-click deep links carrying your IP into ipinfo.io, WhatIsMyIPAddress and AbuseIPDB for location, ISP, ASN and abuse-report data.
Benefits & Use Cases
You land directly on authoritative IP intelligence instead of ad-stuffed aggregator pages, with the context to interpret results correctly — especially the limits of IP geolocation accuracy.
Tips
Treat city-level geo as approximate (it often reflects the ISP hub, not the user), check AbuseIPDB before blocking or reporting, and never use IP geo for identity verification or precise targeting.
Frequently Asked Questions
Why doesn't this show the location directly?
IP geolocation needs constantly updated databases queried server-side; browsers can't do it locally and free APIs block browser requests or need keys. These links open the authoritative services directly.
How accurate is IP geolocation?
Country-level is reliable; city-level is approximate at best — it typically reflects the ISP's routing hub, which can be hundreds of miles off. Never treat it as a street address.
What is an ASN?
An Autonomous System Number identifies the network operator (ISP/host). It's useful for distinguishing hosting providers from residential ISPs when investigating traffic.
Someone attacked my server — what now?
Look up the IP on AbuseIPDB via this tool's link, check its report history, then report the incident there and block the IP at your firewall.
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