IP Lookup

IP Address Lookup

Every device on the internet has an IP address. This tool looks up information about an IP - which organization owns it, what country it's in, and sometimes the city. Useful for checking suspicious traffic or understanding where requests come from.

Geolocation is approximate. An IP might show a city, but that's usually the ISP's regional hub, not the actual user's location. VPNs and proxies will show the VPN server's location instead.

What You'll Learn

• Country and approximate city
• ISP or hosting provider name
• Whether it's a known proxy/VPN

Understanding IP Geolocation

IP geolocation determines the physical location associated with an IP address by analyzing internet infrastructure data. ISPs assign IP addresses to geographic regions, and geolocation databases map these assignments. Accuracy varies from country-level (very accurate) to city-level (moderately accurate) to street-level (rarely accurate).

The data comes from multiple sources: Regional Internet Registries (RIRs), ISP information, and crowd-sourced data. Mobile IPs and VPNs may show different locations than the actual user position, as the IP reflects the network exit point, not the physical device location.

Frequently Asked Questions

Why is the location shown not exactly right?

IP geolocation provides approximate locations, typically accurate to the city level. It shows where your ISP's network infrastructure is located, not your exact address. VPNs, mobile networks, and corporate networks often show distant locations.

What's the difference between IPv4 and IPv6?

IPv4 addresses (like 192.168.1.1) use 32 bits and are running out. IPv6 (like 2001:db8::1) uses 128 bits, providing virtually unlimited addresses. Both work with our lookup tool, though IPv6 geolocation databases are still maturing.

What does the AS number mean?

An Autonomous System (AS) number identifies a network operator (like an ISP or large organization) that controls a range of IP addresses. It's useful for identifying which organization owns the network infrastructure serving that IP address.

When You Actually Need This

Identifying the source of suspicious login attempts or web traffic is the primary use case. You see an IP address in your server logs trying to brute-force a login, and an IP lookup shows it's coming from a known hosting provider or a country where you don't have customers. This info helps you decide whether to block the individual IP or the entire subnet (ASN). Geolocation data also helps with content localization — if you're testing how your site looks for users in different regions, seeing which city your VPN or proxy IP maps to confirms that your location-spoofing is working correctly.

Debugging network connectivity and CDN routing is another scenario. A user reports that your site is slow, and providing their IP address lets you look up their ISP and location. You might find they're being routed to a data center on the other side of the country because their ISP's routing is inefficient. Knowing the ASN (Autonomous System Number) and organization name identifies the network owner, which is essential when coordinating with ISPs or third-party service providers to resolve performance bottlenecks.