IP Address Lookup - Network Intelligence & Geolocation

Discover detailed information about any IP address including its geographic location, hosting provider, reverse DNS records, and network relationships. Robtex IP lookup reveals the infrastructure behind any IPv4 or IPv6 address.

What IP Lookup Reveals

Every IP address carries metadata that tells a story about its origin and purpose. Our lookup tool extracts:

• Geographic location - Country, city, and coordinates based on regional internet registry data
• Network ownership - The organization or ISP that controls the address block
• ASN details - Autonomous System information showing the network's position in global routing
• Reverse DNS - Hostnames pointing to the IP, revealing associated services and domains
• Related infrastructure - Other IPs on the same network, shared hosting relationships

How to Use IP Lookup

Enter any IP address in the search box. For IPv4, use dotted decimal notation like 192.0.2.1. For IPv6, use standard colon-separated format like 2001:db8::1.

Results display immediately, showing the address's network context and all associated DNS records. Click any related hostname or ASN to explore connected infrastructure.

Common Use Cases

Security investigation - Trace suspicious traffic back to its source network. Identify whether an IP belongs to a known hosting provider, residential ISP, or cloud platform.

Network troubleshooting - Verify that DNS records resolve correctly and that reverse DNS is properly configured for mail servers and other services requiring PTR records.

Competitive research - Discover what hosting infrastructure competitors use and identify shared hosting relationships.

Abuse reporting - Find the correct abuse contact for a network by identifying the responsible ASN and organization.

Understanding Results

IP addresses don't exist in isolation. Robtex shows the network graph connecting an IP to its DNS records, nameservers, and related domains. This context reveals patterns invisible in simple WHOIS lookups.

A single IP might host hundreds of domains. Our reverse DNS data shows all hostnames pointing to an address, exposing shared hosting relationships and potential security risks.

→ Look up an IP address

FAQ

What's the difference between IPv4 and IPv6 lookup? Both work identically. IPv6 addresses contain more routing information but return the same categories of data: location, ownership, and DNS records.

How current is the geolocation data? IP geolocation is updated regularly from regional internet registries. Accuracy varies - datacenter IPs are highly accurate while mobile and residential IPs may show approximate locations.

Can I look up my own IP? Yes. Enter your public IP to see how your network appears to external services and verify your reverse DNS configuration.

Why do some IPs show no reverse DNS? Not all IP addresses have PTR records configured. This is common for residential connections and some cloud providers.