Geolocate a public IPv4 or IPv6 address
The IP geolocation tool looks up a public IPv4 or IPv6 address and returns approximate geographic and network information such as country, region, city, postal code, timezone, ISP, ASN, organization and coordinates when the provider has them. It is useful for network support, security triage and understanding where an Internet route appears to terminate.
The result is an estimate based on IP allocation and commercial/public geolocation datasets. It is not GPS. If you only need to identify the address used by your own connection, start with What Is My Public IP?.
How to use the IP geolocation tool
Enter a public address such as 8.8.8.8 or 2606:4700:4700::1111 and press Geolocate. You can also choose Use my IP to detect the current connection first and then run the geolocation lookup automatically. When coordinates are available, SubnetMaster displays an approximate map centered on the returned location.
Private, loopback and other non-public addresses are not suitable for Internet GeoIP. To understand why, review the IP addressing guide or classify an IPv4 value with the IPv4 classification tool.
Why IP geolocation is approximate
GeoIP databases associate address ranges with organizations and locations. The visible location may represent an ISP point of presence, a data-center region, a mobile gateway or the headquarters information attached to an allocation. Accuracy can change over time as address blocks move between providers or are announced from different networks.
| Connection type | Typical behavior | What the result may represent |
|---|---|---|
| Fixed broadband | Often regionally stable | City, metro area or ISP aggregation site. |
| Mobile 4G/5G | Frequently centralized | Carrier gateway that can be far from the device. |
| VPN / proxy | Shows the egress service | VPN or proxy server location, not the user's underlying access network. |
| Cloud / hosting | Usually maps to a data-center region | Hosting provider infrastructure. |
ISP, ASN and organization fields
The ASN identifies the autonomous system associated with the route, while ISP and organization fields describe the network operator or entity linked to the address block. These fields are often more useful for troubleshooting than the city label because they help distinguish residential access, mobile networks, hosting providers, CDNs and VPN infrastructure.
If you are diagnosing a route or service problem, combine GeoIP context with DNS results and normal network tests. The DNS lookup tool can verify public records, and the network troubleshooting guide explains how to correlate addressing, DNS and path symptoms.
Security and fraud-analysis use cases
Security teams commonly use GeoIP as one signal among many. A login from an unexpected ASN or country can justify additional verification, but location alone should not be treated as proof of malicious activity. Corporate VPNs, roaming users, mobile gateways and cloud security products can all make legitimate traffic appear in another region.
For defensive analysis, combine geolocation with authentication logs, device context, timestamps and known network ranges. The network security guide covers the wider controls that should accompany IP-based observations.
Sharing and reproducing a lookup
After a successful lookup you can copy the JSON result or copy a link containing the queried IP. This is useful when sharing a repeatable diagnostic case with another technician. Remember that the underlying GeoIP database can change, so a lookup performed later may return updated organization or location data.
The tool performs the provider request on the SubnetMaster backend. This keeps the GeoIP API credential out of client-side JavaScript and lets the page expose only the normalized result needed by the interface.
Frequently asked questions
Can IP geolocation find an exact street address?
No. It estimates network geography from address-allocation data and should never be interpreted as GPS precision.
Why does a mobile IP show another city?
Mobile operators often route users through centralized gateways, so the database may map the address to the gateway or carrier region rather than the handset location.
What happens when I use a VPN?
Internet services generally see the VPN server's public address. The lookup therefore describes the VPN egress point, not the original access network.
Can I geolocate private addresses such as 192.168.1.1?
No. Private addresses are not globally routed on the public Internet and do not have meaningful public GeoIP data.