Free IP Address Lookup – Location, ISP & ASN

Enter any IPv4 address, IPv6 address, or hostname to retrieve detailed geolocation, ISP, ASN, and proxy/VPN detection data. Results are aggregated from multiple geolocation providers for maximum accuracy.

  • City, region and country
  • ISP, organisation and ASN
  • VPN, proxy, Tor and hosting checks
Diagram: An address being resolved into location, network owner, and routing details on an inspection panel — illustrating ip lookup
An address being resolved into location, network owner, and routing details on an inspection panel.
216.73.217.78
IPv4 Hosting

Geolocation

Country US United States
RegionOhio
CityColumbus
Postal Code-
Time ZoneAmerica/New_York
Coordinates 39.96118, -82.99879 ↗

Network Details

IP Address216.73.217.78
VersionIPv4
Hostname-
Network Type Hosting / Datacenter (High confidence) The ASN is operated by a known cloud, hosting, or CDN provider.
Network ProviderAmazon Web Services
IP Assignment Likely static (Low confidence) Hosting and datacenter addresses are commonly kept stable.
ISPAmazon.com
OrganizationAmazon Technologies Inc.
WHOIS OwnerAnthropic, PBC
WHOIS NetworkAWS-ANTHROPIC
WHOIS Range216.73.216.0/22
Evidence Sourcesip-api.com, RIR RDAP / WHOIS, X4BNet datacenter networks
ASNAS16509

Privacy Detection

VPN ✓ Not detected
Proxy ✓ Not detected
Tor ✓ Not detected
Hosting/DC ⓘ Yes This IP belongs to a hosting company, cloud provider, or datacenter rather than a typical residential ISP.

ⓘ Approximate location - Accurate to city level only.

ⓘ IP geolocation is approximate. Accuracy is typically at the city level. VPN and proxy detection is probabilistic and may not catch all services.

Continue this check

Useful tests to run next

Check this address against IP blocklists Verify the address's reverse-DNS hostname Inspect the network announcing this address

What Does IP Lookup Show?

Each field in the lookup result comes from a different layer of internet infrastructure. Here is what each one means: If you are new to the basics, start with our guide to what an IP address is and our deep dive into how accurate IP geolocation really is.

Field Description Accuracy
CountryCountry where the IP block is registered or primarily used.High
RegionState, province, or administrative region.Medium
CityNearest city to the IP registration point. May differ from physical location.Medium
Postal CodePostal/ZIP code estimate. Often unreliable for mobile and corporate IPs.Low
ISPInternet Service Provider that owns the IP block.High
ASNAutonomous System Number - A unique identifier for a network on the internet.High
IP AssignmentWhether the ISP appears to keep the address static or reassign it dynamically. This is an estimate unless the provider publishes the assignment type.Low
TimezoneTime zone inferred from country and region.Medium
CoordinatesApproximate latitude and longitude. Not the user's exact location.Low
VPN / ProxyDetection based on known VPN/proxy IP ranges and heuristics.Medium

How IP Lookup Works

  • When you enter an IP, we query multiple geolocation databases and aggregate results.
  • Hostnames are first resolved to an IP via DNS before the lookup runs.
  • Corporate, mobile, and satellite IPs may show their data center location, not the physical user location.
  • IPv6 data coverage is more limited than IPv4 across most providers.
  • VPN and proxy detection uses known IP ranges, datacenter ASNs, and abuse signals.
  • Static or dynamic assignment usually cannot be proven from an IP alone. The result is marked likely when it is inferred from reverse DNS or network type, and unknown when there is not enough evidence.

Questions about IP Lookup

How accurate is IP geolocation?

Country-level results are highly reliable - Typically 95-99% accurate. City-level accuracy is much lower, often 55-80%, and the location shown is frequently the nearest large city or the regional hub of the ISP rather than where the user actually sits. Mobile carriers and CGNAT make this worse, and VPNs or proxies replace the location entirely. No IP database can resolve a street address.

Can an IP address identify a person?

Not on its own. An IP identifies an internet connection, not an individual - Several people or devices usually share one address. Only the ISP knows which subscriber held an address at a given moment, and it releases that mapping only under legal process such as a court order. Websites can, however, combine an IP with cookies and account data to build a profile.

What can someone see from my IP address?

Anyone who knows your IP can look up your ISP name, your approximate location (usually city or region), your network ASN, and whether the address belongs to a VPN, proxy, or datacenter. They cannot see your name, email address, exact street address, or browsing history. Those details exist only in ISP records and in the logs of sites you visit.

Tools related to IP Lookup

Technical sources for IP Lookup

The technical claims on this page are drawn from the primary specifications and vendor documentation below.

  1. IANA IPv4 Address Space Registry IANA
  2. RFC 4271 — A Border Gateway Protocol 4 (BGP-4) RFC Editor

Field research that makes IP ownership and location results easier to interpret

These investigations explain what public IP evidence proves, where location estimates diverge, and how to verify the network behind an address.