Network / IP

IP Lookup

Look up ASN, ISP, organization, and geolocation for multiple IP addresses.

GeoIP data is an approximate location from a public database, not an exact user location.

What is IP Lookup for?

IP Lookup shows network information for an IP address, including ASN, ISP, organization, geolocation, and PTR. It helps when reviewing logs, traffic sources, or service IPs.

Recommended workflow

  1. Enter the IPv4 or IPv6 address to look up.
  2. Review ASN, ISP, organization, geolocation, and PTR when available.
  3. Use the result to compare logs, allowlists, or traffic sources.

How this tool works

Network tools normalize IP, CIDR, host, or URL input, then calculate ranges or inspect live response metadata. They are useful for checking routing assumptions, allowlists, response headers, redirects, and public network ownership.

Part of this tool group

Open nearby tools in the same group to cross-check, inspect deeper, or complete a small workflow.

Open Network / IP hub

Frequently asked questions

Is IP geolocation always exact?

No. GeoIP is usually an estimate from network databases and may differ from the real location.

A few nearby utilities you can open quickly when you need to check more.

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Splits a base IPv4/CIDR range into VLSM subnets based on required host counts.

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CIDR Checker

Checks whether an IPv4 address belongs to one or more CIDR ranges, allowlists, or firewall rules.

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IP Range to CIDR

Converts a start-end IPv4 range into the smallest practical list of CIDR blocks.

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