Use this free IP address lookup tool to find the geographic location, Internet Service Provider (ISP), Autonomous System Number (ASN), timezone, and other registration details for any IPv4 address. Leave the field blank to look up your own public IP address automatically. Results are provided by ip-api.com and typically return within one second.
IP geolocation is widely used for network administration, security research, fraud prevention, content localization, and general troubleshooting. This tool gives you instant access to the same data used by professionals — completely free and without any account required. Keep in mind that geolocation is approximate; city-level accuracy is typically 70–80%, and street-level data is never available from IP alone.
Note: IP geolocation is approximate. City-level accuracy is 70–80%. Results show the IP's registered location, not necessarily the physical device location.
IP geolocation is the process of determining the physical or logical location of a device based on its IP address. When you connect to the internet, your ISP assigns you a public IP address from a range they control. That range is registered with a regional internet registry (such as ARIN in North America, RIPE NCC in Europe, or APNIC in Asia-Pacific), and the registration includes information about the organization and their general location.
Geolocation databases compile this registration data along with additional signals — including network routing information, user-contributed data, and inference from neighboring IP ranges — to produce city, region, and country estimates for any given IP address. These databases are maintained by commercial providers and are updated regularly as IP address allocations change.
The country-level data is highly reliable because IP address blocks are clearly registered by country. Region and city data is moderately reliable for urban areas in developed countries, but less accurate in rural areas, developing countries, and for mobile IP addresses that frequently change location. Understanding what an IP address is and how it's assigned helps you interpret geolocation results correctly. Your own public IP can be checked with our dedicated What Is My IP tool.
Building an accurate IP geolocation database is a complex, multi-source process. Commercial providers use several different data sources combined with machine learning to produce their location estimates.
WHOIS registration data is the foundation. Every IP address block is registered with a regional internet registry, and these registrations include the organization name, country, and sometimes city. This data is publicly available and gives reliable country and organization information.
BGP routing tables reveal how IP traffic flows through the internet. By analyzing which ISPs announce which IP ranges, geolocation providers can infer the network topology and make educated guesses about where traffic originates. If an IP range is announced by a regional ISP's peering point in a specific city, that's a strong signal for the IP's location.
Active probing involves sending test packets to IP addresses from known locations and measuring the round-trip time. Since light travels at a known speed through fiber, the measured latency constrains how far away the target can be. This is called network latency-based geolocation and is surprisingly accurate for identifying general regions.
User-contributed data from opt-in sources (users who allow apps to share their GPS location alongside their IP) helps commercial providers validate and improve their database accuracy. This is why accuracy tends to be much better in heavily populated urban areas than rural ones.
Understanding how DHCP assigns IP addresses helps clarify why geolocation can be imprecise — dynamic IP addresses change regularly, and the database may lag behind. Static IP addresses are much more reliably geolocated. Learn how NAT (Network Address Translation) can also affect what IP address appears from the outside world.
Accuracy varies significantly by data type. This table summarizes what you can realistically expect from IP geolocation data:
| Data Point | Accuracy | Notes |
|---|---|---|
| Country | ~99% | Very reliable; based on registry data |
| State / Region | ~85% | Reliable for most urban ISPs |
| City | 70–80% | May be off by 25–50 miles; less accurate for mobile IPs |
| ZIP / Postal Code | 50–60% | Often incorrect in rural areas; mobile IPs unreliable |
| Street Address | Not possible | Never available from IP alone — requires legal process |
| Identity / Name | Not possible | ISP name only; individual identity requires court order |
It's important to understand what geolocation cannot do. IP geolocation cannot identify who is using an IP address — it can only show the ISP or organization that owns the IP block. Obtaining the identity of a specific user from an IP address requires a legal subpoena to the ISP. This is a common misconception, particularly in discussions about online privacy and law enforcement investigations.
When someone obtains your IP address — which can happen through many normal web browsing activities — they gain access to a limited but real amount of information. Understanding this helps you make informed decisions about your online privacy.
What an IP address CAN reveal: Your approximate geographic location (typically the city or metro area where your ISP's infrastructure is located), the name of your Internet Service Provider, your ISP's Autonomous System Number, the type of connection (residential, business, hosting/datacenter, mobile), and your general timezone.
What an IP address CANNOT reveal: Your home address, your name, your phone number, your email address, what websites you've visited (to the person looking up your IP), or your precise physical location. It also cannot definitively identify you as a specific individual — multiple people behind a NAT router share the same public IP. If you're concerned about IP privacy, check our guide on setting up a VPN on your router.
The ISP field is particularly useful for network administrators. Seeing "Amazon AWS," "Google Cloud," or "Microsoft Azure" in the ISP field tells you immediately that traffic originates from a cloud provider — which may be normal (a corporate VPN server) or suspicious (a bot or attacker using cloud infrastructure). Residential ISP names like "Comcast," "AT&T," or "BT" indicate consumer connections. Understanding the role of a gateway in routing this traffic helps complete the picture.
Several factors commonly cause IP geolocation to return incorrect location data. Knowing these helps you interpret surprising results correctly.
VPN and proxy usage: When you use a VPN, websites see the VPN server's IP address, not yours. The geolocation result will show the VPN server's location. This is intentional for privacy purposes, but it also explains why you might see an unexpected location when looking up your own IP. Check our guide on Dynamic DNS (DDNS) to understand how dynamic IPs interact with these systems.
ISP infrastructure centralization: Many ISPs route all their traffic through a central hub city before connecting to the internet backbone. An ISP headquartered in Chicago might serve customers across Illinois, Wisconsin, and Indiana, but their IP blocks are all registered to Chicago. Customers in rural areas will show as being in Chicago.
IP address reassignment: When a block of IP addresses is reassigned from one organization to another (due to mergers, transfers, or reallocation), geolocation databases may take weeks or months to update. An IP that shows as being in the wrong country may simply have recently changed hands.
Mobile and cellular IPs: Mobile carriers use a relatively small pool of IP addresses that they share across millions of subscribers through carrier-grade NAT. A cell phone user in San Francisco might show up as being in Los Angeles if that's where the carrier's NAT gateway is located.
These are all reasons why geolocation should be used as a general indicator rather than definitive proof of location. For network troubleshooting, combine geolocation data with our DNS lookup tool and MAC address lookup for a more complete picture.
If you want to prevent websites and services from determining your approximate location from your IP address, there are several options available at different levels of complexity and privacy protection.
VPN (Virtual Private Network): The most popular method. A VPN routes your internet traffic through a server in a location of your choice, so websites see the VPN server's IP and location. Quality varies widely between providers. Setting up a VPN directly on your router (rather than on individual devices) protects all devices on your network simultaneously. See our detailed guide on how to set up a VPN on your router.
Tor Browser: Routes traffic through multiple encrypted relays, making it extremely difficult to trace back to your real IP. Significantly slower than a VPN and not suitable for streaming or gaming, but provides stronger anonymity for web browsing.
Proxy servers: Similar to a VPN but typically without encryption. HTTP proxies are easy to set up but don't protect all traffic. SOCKS5 proxies offer slightly better coverage. Neither should be trusted for sensitive activities without encryption.
Note that hiding your IP address location affects what IP geolocation tools can see, but doesn't make you anonymous — websites can use other tracking methods including cookies, browser fingerprinting, and login sessions. For complete privacy guidance, start with understanding how NAT works and how your traffic is routed through the internet.
Pro Tip: When using this tool for security research or network administration, pay close attention to the ASN (Autonomous System Number) field. The ASN tells you which large network operator owns the IP block. Legitimate users from business networks will show enterprise ASNs; VPN users show hosting/datacenter ASNs; attackers often use ASNs associated with known abuse sources. Cross-referencing ASNs with threat intelligence databases is a standard technique in security operations center (SOC) work.
Key Takeaways
IP geolocation is the process of determining the approximate physical location of a device based on its IP address. It uses a combination of WHOIS registry data, BGP routing analysis, and network latency measurements to estimate country, region, city, timezone, and ISP. Country-level results are highly reliable (~99%), while city-level accuracy is typically 70–80%.
Country identification is very accurate at around 99%. State or region-level accuracy is around 85%. City-level accuracy ranges from 70–80% and may be off by 25–50 miles. ZIP/postal code accuracy is only 50–60% and is particularly unreliable for mobile and rural connections. Street-level accuracy is impossible — IP geolocation can never provide a street address.
No. IP geolocation cannot reveal your home address. It can identify your approximate city and your ISP. To determine your exact address from an IP address, law enforcement would need to submit a legal subpoena to your ISP, which maintains records linking IP addresses to account holders. No public IP lookup tool can identify an individual's home address.
This is common and usually happens because your ISP routes all traffic through a central hub city, even if you live elsewhere in their coverage area. It can also happen if you're using a VPN (which shows the VPN server's location), a proxy, or a mobile connection routed through your carrier's NAT gateway in a distant city.
An ASN (Autonomous System Number) is a unique identifier assigned to a network operated by a single organization — typically an ISP, hosting provider, or large enterprise. ASNs are used in BGP routing to identify network paths on the internet. Seeing an ASN in lookup results tells you which major network operator owns the IP address block. For example, AS15169 is Google, AS16509 is Amazon AWS, and AS7922 is Comcast.
Yes. The most effective method is using a VPN, which routes your traffic through a server in a different location so websites see the VPN server's IP instead of yours. Setting up a VPN on your router protects all connected devices. The Tor Browser provides stronger anonymity at the cost of slower speeds. Proxy servers offer partial protection but without encryption.
Your IP location shows where your ISP's IP block is registered — often the city where your ISP has its nearest network infrastructure hub. Your real location is where your device physically is. These can differ significantly: a rural customer might have an IP registered to a major city 100 miles away, and a VPN user's IP location will show wherever the VPN server is. IP location is a network infrastructure address, not a GPS coordinate.
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About Tommy N.
Tommy is the founder of RouterHax and a network engineer with 10+ years of experience in home and enterprise networking. He specializes in router configuration, WiFi optimization, and network security. When not writing guides, he's testing the latest mesh WiFi systems and helping readers troubleshoot their home networks.
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