Your IP Address Shows Where Your Connection Is Registered, Not Where You Are. Here Is the Difference.
An IP address does not know where you are. It knows where your internet connection is registered. For most people, those two things are the same city. For others, they are hundreds of miles apart, and the difference reveals something important about how IP geolocation actually works.
Every device connected to the internet has an IP address, and every IP address is registered to an organization: an ISP, a company, a university, or a hosting provider. IP geolocation databases map those registrations to locations. The city-level result you see when you look up your own IP address is not a GPS coordinate. It is the city where your ISP has registered the block of IP addresses that includes yours.
Country-level geolocation is highly accurate. MaxMind, one of the principal providers of IP geolocation data, which has been operating since 2002, reports country detection accuracy exceeding 99 percent for most regions. State or regional detection is somewhat less reliable. City-level accuracy varies significantly and MaxMind provides an accuracy radius with each result indicating how wide the uncertainty circle is. For a densely connected urban area, that radius might be five kilometers. For a rural connection served by a regional ISP, it could be 50 kilometers or more.
How IP Address Registration Works
The internet's address space is administered by regional registries, not by a single central authority. The Internet Assigned Numbers Authority, IANA, allocates large blocks of IPv4 and IPv6 addresses to five Regional Internet Registries: ARIN for North America, RIPE NCC for Europe and the Middle East, APNIC for Asia-Pacific, LACNIC for Latin America, and AFRINIC for Africa. Each RIR then distributes smaller blocks to ISPs, universities, and corporations within its region.
The WHOIS database system, which began in the ARPANET era in the 1970s as a directory of network administrators, is the primary public record of IP address registration. When an ISP receives an address block from its RIR, the assignment is recorded in WHOIS along with the name of the organization, a contact address, and typically the country of registration. Geolocation databases query these records and augment them with additional signals.
MaxMind, founded in 2002, was among the first companies to build a commercial IP geolocation product, releasing GeoIP as a database that could be embedded in web servers to return country and city data for any IP. The GeoLite2 database, a free version of their commercial product, became widely used by developers worldwide and is embedded in numerous open-source web analytics platforms, firewall systems, and content delivery networks. Similar databases are maintained by IP2Location, which has operated since 2002, and by DB-IP, which aggregates data from multiple regional sources.
Registration Location vs. Physical Location
The distinction between registration location and physical location creates the accuracy gap that surprises many users. An ISP headquartered in Chicago that serves the entire Midwest may register all its IP address blocks to its Chicago headquarters. A customer in rural Iowa using that ISP will have an IP that geolocates to Chicago because that is where the registration records point, not because the connection is physically routed through Chicago in a way that requires the database to mark that city.
Mobile carriers amplify this problem. LTE and 5G networks route traffic through regional mobile data gateways rather than through equipment near each individual cell tower. A carrier might operate a single gateway for an entire state. All mobile users in that state whose traffic flows through that gateway will share IP addresses from the same pool, which is registered to the city where the gateway is located. A user in rural Kansas appearing as a Wichita IP address on a geolocation lookup is an expected result, not a database error.
Corporate networks create a different pattern. A company with 10,000 employees may route all internet traffic through a single headquarters-based proxy server. Every employee's internet traffic appears to originate from the headquarters IP, regardless of which office or remote location the employee is physically working from. This is a common reason why a user's IP geolocation lookup returns a city different from where they actually are.
VPNs and Proxy Services
Virtual Private Networks route a user's internet traffic through a server in a different location, and the IP address that websites and geolocation systems see is the VPN server's IP, not the user's actual connection address. A person in Tokyo using a VPN with an exit node in London will geolocate as a London address.
Commercial VPN providers maintain server pools in dozens of countries specifically to allow users to appear to be in a selected country. The geolocation databases track VPN provider IP ranges, and MaxMind's commercial database includes flags indicating whether an IP address is associated with a VPN or data center rather than a residential or business ISP. This information is used by streaming services to enforce regional content licensing and by fraud detection systems to flag orders placed through anonymizing services.
Tor exit nodes, which anonymize internet traffic by routing it through a chain of volunteer-operated relays before it exits to the public internet, are tracked separately. The Tor Project maintains a public list of current exit node IP addresses, and most content delivery networks and fraud prevention services use that list to identify Tor traffic.
Accuracy Rates and Use Case Matching
MaxMind's documented accuracy figures for their commercial GeoIP2 City database include approximately 99.8 percent accuracy at the country level, around 90 percent at the state or region level for the United States, and approximately 80 percent at the city level for United States addresses. City-level accuracy in other countries varies based on how well the ISP registration data is maintained and how frequently database providers update their records.
The appropriate use case for IP geolocation is one that needs country or approximate regional data and can tolerate the accuracy rates at those levels. Fraud detection benefits substantially from country-level accuracy when flagging transactions from countries where a user has no established history. Content localization, serving language-appropriate content based on country, works well at country-level accuracy. Traffic analytics attributing sessions to geographic regions uses country and state data meaningfully.
Precise location detection, defining a user's specific address or neighborhood, requires device-reported location data, not IP geolocation. Any system that relies on IP geolocation for precise physical location will produce wrong results consistently enough that the results cannot be trusted for decisions where precision matters.
Reading a Geolocation Lookup Result
An IP geolocation lookup returns several fields beyond just city and country. The ISP or autonomous system name identifies the network operator and is often more reliable than the city field because ISP registration is more stable than IP-to-city mapping. The autonomous system number, ASN, is a unique identifier for the network operator, assigned by the relevant RIR. The connection type field, where available, indicates whether the IP is associated with a residential, business, or mobile network, which affects how the city-level data should be interpreted.
Conclusion
The latitude and longitude returned by geolocation lookups should be treated as approximate center points of a region, not as precise coordinates. Some databases return a default latitude and longitude for the entire country when city-level data is unavailable, which can produce a result that appears precise but is only accurate to a national-level center point. MaxMind explicitly marks their default country-center coordinates in the accuracy radius field with very large values to indicate the imprecision.
Interpreting the result with the accuracy radius field in mind, and understanding which use cases match the accuracy level available, makes IP geolocation a practical tool rather than a misleading one.
Frequently Asked Questions
How accurate is IP geolocation at the city level?
City-level accuracy varies widely. MaxMind provides an accuracy radius with each lookup. Urban areas with dense ISP infrastructure can be accurate to 5km. Rural areas served by regional ISPs may have radii of 50km or more.
Why does my IP show the wrong city?
Your IP is registered to your ISP's address block, which may be assigned to a regional hub rather than your exact location. Mobile carriers often register pools to the nearest major city with their switching center.
Can a VPN change what IP geolocation shows?
Yes. A VPN routes your traffic through a server in another location, substituting that server's IP for yours. Any geolocation lookup will return the location of the VPN exit node, not your physical location.