IP Lookup Guide

IP Lookup: ISP, ASN, and Location Explained

Use IP lookup to understand ISP, ASN, city, state, country, postal code, time zone, and approximate IP location data.

An IP lookup checks public IP data to estimate the network owner and approximate location of an address. This can include ISP, ASN, city, state, country, postal code, and time zone.

What is IP lookup used for?

IP lookup is useful for troubleshooting internet connections, checking whether a VPN or proxy is visible, verifying your public IP, and understanding which network is handling your traffic.

Common IP lookup fields

ISP

The internet service provider or network organization behind the IP address.

ASN

The Autonomous System Number that identifies the network route owner.

Location

Approximate city, state, country, postal code, and time zone.

VPN / Proxy

Some providers can identify whether an IP looks like a VPN, proxy, Tor, relay, or hosting network.

Accuracy note

IP location is not GPS. It is based on public routing and geolocation databases, so results may point to your ISP, mobile carrier, VPN, or proxy exit location. You can compare this page with the What is my IP guide for more context.

Use the live tool

Open the home page to run a live IP lookup for your current connection.