IP Lookup turns an IP address into context: the announcing ASN and prefix, the responsible organisation, the country and city it geolocates to, and the regional internet registry that allocated it.
Enter an IP address (203.0.113.10) and run the tool. The probe queries geolocation and routing databases to assemble a full context report for the address.
Input: IP address — e.g. 203.0.113.10.
The output shows the ASN, allocated prefix, organisation name, country, region, city, coordinates and RIR (ARIN, RIPE, APNIC, LACNIC or AFRINIC). Use it to identify the owner and origin of an address seen in logs, mail headers or abuse reports.
→ Identify the owner and origin of an IP in access or abuse logs.
→ Attribute a connection to a hosting provider or cloud platform.
→ Estimate the country/region of a visitor for compliance.
→ Investigate a suspicious IP from a mail header or firewall alert.
Country-level accuracy is generally high (95%+). City-level accuracy varies and is less reliable for mobile or CDN/anycast IPs, which may report the PoP location rather than the user. Treat city-level results as approximate.
An Autonomous System Number identifies a network that exchanges routes with the internet via BGP. The ASN tells you which organisation announces the IP block the address belongs to — useful for attributing traffic to a hosting provider, ISP or cloud platform.
Geolocation databases map IP blocks to registered locations, which may be the ISP’s headquarters or a CDN edge rather than your physical location. VPNs and mobile carriers also cause mismatches.