IP Geolocation — Look Up Any IP Address Free
Every device connected to the internet has an IP address. IP geolocation maps that address to a physical location — country, region, city, and timezone — by combining routing data, WHOIS registry information, and network topology databases. The free IP geolocation tool on PublicSoftTools looks up any IPv4 or IPv6 address and returns location, ISP, ASN, and timezone data instantly.
How to Use the IP Geolocation Tool
- Open the IP geolocation tool.
- Enter any IPv4 address (e.g., 8.8.8.8) or IPv6 address in the input field. Leave blank to look up your own current IP address.
- Click Look Up. Results appear within 1–2 seconds.
- Results show: country, region, city, approximate coordinates, ISP, ASN, timezone, and connection type.
- For developers: the tool also shows the API endpoint and response format for integrating IP geolocation into your own application.
IP Geolocation Data Fields
| Field | Example | Description | Typical accuracy |
|---|---|---|---|
| IP Address | 203.0.113.42 | The IPv4 or IPv6 address being looked up | Exact — this is the input |
| Country | United Kingdom | The country where the IP is registered or typically used | Very high (~99%) for country-level geolocation |
| Region / State | England | The state, province, or administrative region | High (~90%) for most countries |
| City | London | The city associated with the IP address registration | Moderate (~75–80%) — city accuracy varies significantly by country and ISP |
| Latitude / Longitude | 51.5074, -0.1278 | Approximate geographic coordinates | Low precision for specific location; accurate for rough area only |
| ISP / Organisation | BT plc | The Internet Service Provider or organisation that owns the IP block | Very high — derived from WHOIS/ARIN data which is authoritative |
| Timezone | Europe/London | The timezone associated with the IP's location | High for country-level; city accuracy affects precision |
| ASN (Autonomous System Number) | AS2856 | The ASN of the network routing the IP address | Very high — ASN data is from routing tables, which are authoritative |
| Connection type | Broadband, Mobile, Hosting | Whether the IP is a home broadband, mobile, datacenter, or VPN address | Moderate — datacenter and VPN detection is generally reliable; consumer broadband vs mobile less precise |
Common Use Cases for IP Geolocation
| Use case | How geolocation helps | Example |
|---|---|---|
| Fraud detection and risk scoring | Flag orders from IP addresses in unexpected geographies; identify datacenter IPs (bots) vs residential; detect IP/billing address mismatch | E-commerce order from UK billing address but IP in Eastern Europe flagged for manual review |
| Content geo-restriction | Serve region-specific content, enforce licensing restrictions, comply with broadcasting rights | Streaming service shows UK content to UK IPs; redirects to US catalogue for US IPs |
| Localisation and UX | Pre-fill country, currency, and language based on visitor IP; show local pricing automatically | SaaS pricing page shows £ for UK visitors, $ for US visitors, without requiring the user to select manually |
| Security and access control | Geo-blocking specific countries; allowlist only expected countries for admin panels; rate limit by geography | Admin panel accessible only from home country IPs; all others receive 403 |
| Analytics and traffic analysis | Break down traffic by country and region without requiring user login; map traffic geographically | Marketing dashboard shows which countries drive most traffic and conversions |
| VPN / proxy detection | Identify users routing through VPN, datacenter, or Tor — for compliance, fraud, or policy enforcement | Financial services require direct connection; flag VPN IPs for step-up authentication |
| Log analysis and debugging | Understand where server errors or unusual traffic patterns are coming from | Server receiving thousands of requests from a single datacenter IP block — likely a scraper or DDoS |
How IP Geolocation Works
IP geolocation databases are built from multiple data sources:
- WHOIS and ARIN/RIPE/APNIC data: Regional Internet Registries (RIRs) maintain authoritative records of which organisations own which IP blocks (ranges of addresses). This determines the registered owner (often an ISP) and their country/region with high accuracy.
- BGP routing tables: Border Gateway Protocol routing data shows which ASN (Autonomous System Number) is advertising each IP prefix — providing ISP and network topology information.
- Active network probing: Traceroute-style measurements from multiple vantage points can triangulate approximate geographic location based on network latency.
- User-contributed corrections: Large geolocation providers (MaxMind, ipinfo.io) incorporate user feedback to correct errors in their databases.
- ISP cooperation: Some ISPs provide geolocation data for their customer-assigned IP ranges, improving city-level accuracy.
The result is highly accurate at country level (where ISP headquarters and registry data are authoritative), moderate at city level (where actual customer location may differ from ISP hub location), and low at street/premise level (where IP geolocation provides no useful precision — browser-based GPS location should be used instead).
IPv4 vs. IPv6
The internet is transitioning from IPv4 (32-bit addresses, ~4.3 billion total) to IPv6 (128-bit addresses, effectively unlimited). For geolocation:
- IPv4: Well-established geolocation databases with years of data. High country accuracy, reasonable city accuracy for most regions.
- IPv6: Geolocation databases less comprehensive — IPv6 is still being deployed, and some ISPs have not yet provided location data for their IPv6 ranges. Country accuracy is generally good; city accuracy varies.
- IPv4-mapped IPv6: Addresses like ::ffff:203.0.113.42 are IPv4 addresses expressed in IPv6 notation — they are geolocated using the underlying IPv4 data.
Why IP Geolocation Is Not Precise
IP geolocation accurately identifies ISP and country but is unreliable for precise physical location. Common reasons for inaccuracy:
- ISP hub location: An ISP may assign IP addresses from a block registered to their regional hub city, even if the customer is 100 miles away. A customer in Leeds may appear as Bradford or Manchester if the ISP's hub is there.
- VPN and proxy: Users routing through a VPN appear at the VPN server's location, not their actual location. Datacenter IPs appear at the datacenter location.
- Mobile networks: Mobile carriers often route traffic through a small number of gateway points — a user in Edinburgh on EE may appear to be in London where EE's gateway is.
- Database staleness: IP ranges are bought, sold, and re-assigned between ISPs. Geolocation databases take time to update.
- CGNAT: Carrier-Grade NAT pools thousands of customers behind a single IP, making individual location tracking impossible at the IP level.
Common Questions
Can IP geolocation tell someone my exact home address?
No. IP geolocation identifies approximate area (typically city or region level) based on ISP and registry data — not a specific address or premise. Someone knowing your IP address can typically determine your approximate city and ISP, not your street address or home. For actual address lookup, ISPs hold that data and only release it in response to valid legal requests (court orders). The precision people sometimes assume of IP tracking comes from confusing IP geolocation with browser GPS location — which does identify your device's precise location but requires your permission and is a different technology.
Why does my IP geolocation show the wrong city?
Most likely because your ISP assigns you an IP from a block registered to a different city than where you are located (typically their regional hub or headquarters). This is common and expected — it is not an error in the tool but a limitation of IP-based location. Your ISP knows your actual location from the account address; that data is not in public IP databases. VPN use, mobile networks, and CGNAT also commonly cause location mismatches.
What is the difference between IP geolocation and GPS location?
IP geolocation maps a network address to an approximate location using registry data — passive, requires no permission, city-level precision at best. GPS (or browser geolocation) uses satellite signals (or nearby WiFi/cell tower data) processed by your device to determine your precise physical position — requires explicit user permission, accurate to metres. For showing a user their local weather or nearest store, browser GPS is appropriate. For understanding which country a server request came from, IP geolocation is appropriate. They serve different use cases at very different precision levels.
Look Up an IP Address
Enter any IPv4 or IPv6 address to see country, city, ISP, timezone, and ASN. Leave blank to check your own IP. Free, no signup.
Open IP Geolocation Tool