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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

🔍

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
🌐

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
🛡️

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.
Why does the lookup fail for addresses like 192.168.1.10?
Private ranges (10.x.x.x, 172.16.x.x to 172.31.x.x, 192.168.x.x), loopback (127.x.x.x) and carrier-grade NAT addresses (100.64.0.0/10) are not routable on the public internet, so geolocation databases have no public owner or location for them. Look them up in your own network inventory, DHCP logs or firewall instead.
Does this tool tell me whether an IP address is malicious?
No. It shows location and network ownership, not a reputation or blocklist score. Ownership is still a useful signal, because automated scanning and attack traffic often comes from hosting and cloud networks. For abuse history, check a threat intelligence source such as AbuseIPDB or your SIEM.
Why does my own IP show a different city than where I am?
Geolocation databases map address blocks to the location the ISP registers or routes them through, which is often a regional hub rather than your street or town. A VPN, corporate proxy or mobile carrier gateway also changes the location that websites see.

Related Network & Security Tools

📡

DNS Lookup

Query A, MX, CNAME, NS, and TXT records.

🔎

Whois Lookup

Look up domain registration and ownership details.

🌐

Subnet Calculator

Calculate network addresses and CIDR ranges.

What the IP Address Lookup does

The Protego IP Address Lookup shows the approximate location (country, region, city, postal code, coordinates and time zone) and the network owner (ISP, organization and autonomous system number, or ASN) of a public IPv4 or IPv6 address. Click My IP Address to see the public address and location that websites see when you connect.

Lookups are made by Protego's server, which queries the ip-api.com geolocation service and falls back to ipwho.is if the first provider does not answer. Use it to triage an unfamiliar address from a sign-in alert, a firewall log or an email header.

How to use it

  1. Type an IP address, for example 8.8.8.8, into the search box and click Lookup. Or click My IP Address to look up your own connection.

  2. Read the Location panel for country, region, city and time zone.

  3. Read the Network panel for the ISP, organization and ASN. This tells you what kind of network the address belongs to.

  4. Combine what you see with the context of where the address came from before deciding whether it is suspicious.

How to interpret the results

The ASN tells you more than the city

If the organization or ASN belongs to a cloud or hosting provider such as AWS, Microsoft Azure, Google Cloud or DigitalOcean, the traffic comes from a server, not a person at home. That is normal for bots, scanners, VPN exits and attacker infrastructure, and also for legitimate services.

Location is an estimate

Geolocation comes from databases, not GPS. Coordinates often point at the center of a city or country. Country is usually reliable, city much less so. Never use it to identify a person or a street address.

Suspicious sign-in triage

An unfamiliar country combined with a hosting-provider ASN on a sign-in log is worth acting on: review the account's recent activity, revoke sessions, reset the password and confirm MFA. Travel and VPN use explain many false alarms, so check with the user.

What this tool does not do

It does not score reputation or check blocklists, and it does not reveal who is behind an address. For abuse history, use a threat intelligence source. For the owner of a whole network block, use a WHOIS or RDAP lookup.

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