Leave blank to detect your own public IP address. Supports IPv4 and IPv6. Data via ipwho.is (ipapi.co + freeipapi.com fallback).
What this tool does
Free IP address lookup -- find geolocation, ISP, ASN, and proxy status for any IP address
This free IP address lookup tool takes any IPv4 or IPv6 address and returns the full set of geolocation and network data associated with it. Enter an IP address in the input field and click Look Up IP to see the country, region, city, postal code, latitude and longitude, timezone, ISP name, organisation name, and autonomous system number. Three additional flags show whether the IP is associated with a mobile network, a proxy or VPN service, or a datacenter and hosting provider. Leave the field blank to automatically detect and look up your own current public IP address.
The lookup works by querying ipwho.is as the primary source, with automatic fallback to ipapi.co and then freeipapi.com if the primary source is unavailable. All three APIs are free, operate over HTTPS, and require no API key. This cascade approach means the tool always returns a result even if one provider has an outage. Country and region data is derived from regional internet registry records. City-level data comes from commercial geolocation databases. The proxy and hosting flags are derived from databases of known VPN IP ranges, Tor exit nodes, and datacenter IP blocks.
IP address lookup is used across a wide range of professional and security workflows. Security teams use it to investigate suspicious login attempts, check the origin of traffic anomalies, and identify proxy-masked connections. Developers integrate IP geolocation into applications to automate language selection, regional pricing, content localisation, and geo-restricted access control. Marketing and analytics teams use IP geolocation to understand the geographic distribution of website visitors. Fraud prevention systems cross- reference billing addresses against IP geolocation to flag transactions where the claimed location does not match the network location. Network administrators use ASN lookups to trace the ownership of IP blocks and diagnose routing issues.
Data fields returned
Country
The country where the IP address is registered, including the two-letter ISO country code.
Region / State
The region, state, or province associated with the IP block's registration location.
City
The approximate city of the IP address based on commercial geolocation database mapping.
Postal Code
The postal or ZIP code associated with the IP's registered location when available.
Coordinates
Latitude and longitude of the IP's approximate location, useful for map display and distance calculation.
Timezone
The IANA timezone identifier (e.g. America/New_York) inferred from the IP's geographic location.
ISP
The Internet Service Provider that owns or operates the IP address block.
Organisation
The registered organisation that holds the IP block, which may differ from the ISP for large enterprises.
ASN
The Autonomous System Number and organisation name, identifying the routing entity that controls the IP.
Proxy / VPN
Flag indicating whether the IP is a known proxy, VPN exit node, Tor exit node, or anonymising service.
Mobile
Flag indicating whether the IP belongs to a mobile or cellular network operator.
Hosting / DC
Flag indicating whether the IP belongs to a datacenter, cloud provider, or hosting company.
Examples
IP address lookup examples -- geolocation results for different IP types
These examples show what IP lookup results look like for different categories of IP address -- residential, cloud, VPN, and mobile.
ResidentialStandard residential broadband IP -- high geolocation accuracy
IP: 98.139.180.149
Country: United States (US)
Region: California (CA)
City: Sunnyvale
Coordinates: 37.3860, -122.0838
Timezone: America/Los_Angeles
ISP: AT&T Internet
ASN: AS7018 AT&T Services Inc.
Mobile: No
Proxy/VPN: No
Hosting/DC: No
A typical residential broadband IP from AT&T in the San Francisco Bay Area. Country and region accuracy is high -- this IP is genuinely in California. City accuracy is approximate; the user could be anywhere within the ISP's service area around Sunnyvale. The absence of proxy, mobile, and hosting flags makes this a high-trust IP type for fraud prevention purposes.
Proxy / VPNTor exit node -- location masked, proxy flag set
IP: 185.220.101.47
Country: Netherlands (NL)
Region: North Holland
City: Amsterdam
Timezone: Europe/Amsterdam
ISP: Tor Project
ASN: AS60729 Zwiebelfreunde e.V.
Mobile: No
Proxy/VPN: Yes -- Tor exit node detected
Hosting/DC: Yes
This is a Tor exit node in Amsterdam operated by a Tor infrastructure organisation. Both the proxy and hosting flags are set. The geolocation shows the Netherlands but the actual user could be anywhere in the world -- Tor routes traffic through multiple relays before exiting. IPs like this should be treated as anonymous and high-risk in fraud prevention and access control systems.
Hosting / CloudAWS EC2 instance -- datacenter IP, likely automated traffic
IP: 54.239.28.85
Country: United States (US)
Region: Virginia (VA)
City: Ashburn
Timezone: America/New_York
ISP: Amazon.com Inc.
ASN: AS16509 Amazon.com Inc.
Mobile: No
Proxy/VPN: No
Hosting/DC: Yes -- datacenter / cloud IP
An AWS EC2 IP in the us-east-1 region (Ashburn, Virginia). The hosting flag is set because this IP belongs to Amazon's datacenter infrastructure. Human users very rarely browse from AWS IPs -- traffic from this IP is almost certainly a bot, scraper, or server-side process. Most fraud prevention and bot detection systems flag hosting IPs for additional verification.
MobileMobile carrier IPv6 -- city-level accuracy low, mobile flag set
IP: 2a00:1450:4001:829::200e
Country: Germany (DE)
Region: Bavaria
City: Munich
Timezone: Europe/Berlin
ISP: Deutsche Telekom AG
ASN: AS3320 Deutsche Telekom AG
Mobile: Yes -- cellular network
Proxy/VPN: No
Hosting/DC: No
An IPv6 address assigned by Deutsche Telekom's mobile network in Germany. The mobile flag is set. Mobile IPs have lower geolocation precision because carriers assign IPs at a national or regional gateway level -- this user could be anywhere in Germany, not necessarily Munich. IPv6 mobile addresses are increasingly common as carriers move away from NAT-based IPv4 address sharing.
Private IPRFC 1918 private address -- no geolocation available
IP: 192.168.1.100
Range: 192.168.0.0/16 (RFC 1918 private)
Country: N/A -- private address space
ISP: N/A -- not publicly routable
ASN: N/A
Result: Error -- private IP, no geolocation data
Private IP ranges (10.x.x.x, 172.16-31.x.x, 192.168.x.x) are reserved for local networks and have no geolocation data. If you see a private IP in server logs, the request came through a load balancer or proxy that replaced the original IP. Leave the input blank to look up your actual public IP instead.
FAQ
Frequently asked questions about IP address lookup and IP geolocation
What is an IP address lookup tool and what does it show?
An IP address lookup tool queries geolocation databases and network registries to return information associated with an IP address. This includes the country, region, city, and postal code where the IP is registered, the latitude and longitude coordinates of that location, the ISP (Internet Service Provider) or organisation that owns the IP block, the autonomous system number (ASN), the local timezone, and flags indicating whether the IP is associated with a mobile network, a proxy or VPN service, or a hosting provider. This information is derived from regional internet registries (RIRs) and commercial geolocation databases.
How accurate is IP address geolocation?
IP geolocation accuracy varies by the precision level you need. Country-level accuracy is typically above 95% for most IP addresses. Region and state-level accuracy is usually 70-85%. City-level accuracy drops further, often 50-75%, because IP blocks are assigned to ISPs at a city level but individual users within that ISP may be anywhere in the surrounding area. For mobile IPs, accuracy can be even lower because mobile carriers assign IPs at a national or regional level rather than per-tower. IP geolocation should never be used as a precise location tracker -- it identifies the registered location of the network, not the physical location of the device.
What is the difference between IP geolocation and GPS location?
GPS location uses signals from satellites to pinpoint a device's physical position to within a few metres. It requires the device's hardware and the user's permission to access location data. IP geolocation, by contrast, identifies where an IP address is registered in network databases -- typically the city or region associated with the ISP that owns the IP block. The two can differ significantly: a user in a rural area might have an IP registered to their ISP's datacenter in a different city hundreds of kilometres away. IP geolocation is useful for approximate regional identification, while GPS is required for precise physical location.
What does the proxy or VPN flag mean in IP lookup results?
The proxy flag in IP lookup results indicates that the IP address has been identified as belonging to a proxy server, VPN service, Tor exit node, or other anonymisation infrastructure. This detection is based on databases of known VPN provider IP ranges, datacenter IP blocks used by VPN services, and behavioural signals. A proxy flag means the true origin location of the user is hidden behind the proxy. For fraud prevention, security, and access control purposes, this flag is used to detect users masking their location. Note that detection is not 100% accurate -- new VPN IP ranges may not yet be flagged.
What is an ASN and what does it tell you in an IP lookup?
An ASN (Autonomous System Number) is a unique identifier assigned to a network or group of IP addresses that share a routing policy on the internet. Each ISP, large enterprise, university, cloud provider, and content delivery network typically has one or more ASNs. In an IP lookup, the AS field shows the ASN and the name of the organisation that operates it. For example, AS15169 belongs to Google LLC, and AS16509 belongs to Amazon. Knowing the ASN tells you not just who the ISP is, but whether an IP belongs to a hyperscaler cloud (AWS, Google Cloud, Azure), a residential broadband provider, a mobile carrier, or a datacenter operator.
Can I look up my own IP address with this tool?
Yes -- leave the IP address field blank and click Look Up IP. The tool will automatically detect and look up your current public IP address. Your public IP is the address assigned to your internet connection by your ISP -- it is the address that external servers see when you browse the web. Note that this is different from your private or local IP address (e.g. 192.168.x.x), which is assigned by your router and is not visible to the internet. If you are using a VPN, the tool will show the IP and location of the VPN server rather than your actual ISP connection.
What is the hosting flag in IP geolocation results?
The hosting flag indicates that the IP address belongs to a datacenter, cloud provider, or hosting company rather than a residential or business ISP. Examples include AWS EC2 instances, Google Cloud VMs, DigitalOcean droplets, and dedicated server providers. This is useful for security applications: legitimate human users connecting from hosting IPs are rare, so this flag is often used in fraud detection to identify bot traffic, scraping operations, automated signup attempts, and other programmatic activity that originates from cloud infrastructure rather than real end-user devices.
Why does the city in an IP lookup result not match the user's actual city?
IP geolocation maps IP addresses to the location where they are registered in network databases, which is often the city where the ISP's infrastructure is located rather than where the individual user is. For example, a user in a small town might receive an IP from their ISP's regional point of presence in a nearby major city. Mobile users often get IPs assigned at a national or regional level. Additionally, commercial geolocation databases are updated periodically and may not reflect recent reassignments of IP blocks. For accurate user location, browser geolocation (with user permission) or GPS data is required.
How do developers use IP geolocation lookup in their applications?
Developers integrate IP geolocation via APIs to power a range of features: automatic language and currency selection based on the visitor's country, geo-restricted content delivery, regional pricing, fraud detection by flagging mismatches between billing address country and IP country, load balancing to route users to the nearest server, analytics dashboards showing visitor geography, and compliance with regional regulations like GDPR by identifying EU visitors. Common APIs include ip-api.com, MaxMind GeoIP2, and ipinfo.io. Many CDNs and edge computing platforms also expose the visitor's country as a request header, eliminating the need for a separate API call.
What is a private or reserved IP address and why can't it be looked up?
Private IP addresses are ranges reserved for use within local networks and are not routable on the public internet. The main private ranges are 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16, as well as loopback (127.0.0.0/8) and link-local (169.254.0.0/16) ranges. Because these addresses are only meaningful within a local network and are shared by millions of devices worldwide, they have no geolocation data and cannot be looked up. If you enter a private IP address, the lookup will return an error or no result. To find your public IP address, leave the input blank and the tool will detect it automatically.
Related Tools
Need a disposable email address?Generate a free, instant throwaway -- zero signup, zero trace.
Get Free Temp Mail ->