IP Address Lookup

Get geolocation, ISP, ASN, reverse DNS, and network details for any IP address or domain.

Understanding IP Addresses

IP addresses are unique identifiers for every device on the internet. Understanding them helps you manage network security, troubleshoot issues, and protect your privacy.

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IPv4 vs IPv6

IPv4 uses 32-bit addresses (e.g., 192.168.1.1) supporting ~4.3 billion unique addresses. IPv6 uses 128-bit addresses supporting virtually unlimited devices — essential as IPv4 space is exhausted.

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IP Geolocation

IP geolocation maps IP addresses to physical locations using databases maintained by internet registries. Accuracy varies — country-level is typically reliable, city-level is approximate.

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Autonomous Systems (ASN)

An Autonomous System (AS) is a network under a single administrative entity. Each AS has a unique ASN number. ISPs, cloud providers, and large organizations typically own their own AS.

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Proxies & Tor

Proxy servers and Tor exit nodes mask the original IP address. Identifying these helps security teams detect anonymized traffic, prevent abuse, and enforce geo-restrictions on content.

Frequently Asked Questions

What is an IP lookup? expand_more

An IP lookup maps an IP address to its physical location, Internet Service Provider, and network information using geolocation databases.

How accurate is IP geolocation? expand_more

City-level accuracy is typically 50-80% depending on the database and ISP. Country-level accuracy is above 99%. Mobile and VPN IPs may show the provider's location instead.

What is an ASN? expand_more

An Autonomous System Number identifies a network operator on the Internet. Large ISPs and cloud providers each have one or more ASNs.

Can I look up someone's location from their IP? expand_more

IP geolocation shows the approximate area of the ISP or data center, not the exact address of a person. VPN and proxy users show the VPN server location.

What is reverse DNS? expand_more

Reverse DNS maps an IP address back to a hostname. It is configured by the IP owner and used for email server verification and network diagnostics.

What does it mean if an IP is a proxy or Tor node? expand_more

Proxy and Tor flags indicate the IP is used to anonymize traffic. This is common for privacy tools but is also associated with abuse and automated attacks.