IP Address Lookup & Geolocation
Find the location, ISP, organization, and ASN for any IP address. Useful for security investigations, threat hunting, and network troubleshooting.
✓ Free✓ Geolocation Data✓ ISP & ASN Info
Common Use Cases for IP Lookup
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Security Investigations
- ✓Identify the source country of suspicious login attempts
- ✓Investigate IP addresses from firewall logs
- ✓Correlate threat intelligence with geographic data
- ✓Verify IP reputation during incident response
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Network Troubleshooting
- ✓Identify the ISP responsible for a network issue
- ✓Verify BGP routing and ASN assignments
- ✓Debug geolocation-based routing policies
- ✓Confirm CDN point of presence selection
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Compliance & Access Control
- ✓Verify user location for geo-restriction compliance
- ✓Detect VPN/proxy usage by checking ASN
- ✓Support geographic access control decisions
- ✓Document IP metadata for audit trails
Frequently Asked Questions
What information can I find with an IP lookup?
An IP lookup reveals the approximate geographic location (country, region, city), ISP, organization name, and ASN. Country-level accuracy is typically 95-99%. City-level accuracy varies.
Is IP geolocation accurate?
Country-level geolocation is typically 95-99% accurate. City-level accuracy varies widely. VPNs, proxies, and Tor exit nodes will show the location of the server, not the actual user.
What is an ASN?
An Autonomous System Number (ASN) is a unique identifier assigned to a network operated by a single organization. Large ISPs, cloud providers (AWS, Azure, Google), and major companies each have their own ASN.
Can I look up multiple IP addresses?
Currently this tool supports single IP lookups. For bulk IP lookups in security investigations, consider using the ip-api.com API directly or a SIEM tool that integrates geolocation data.