IP Address Lookup

Free Online IP Address Lookup

This IP Address Lookup tool helps you find geolocation, ISP, hostname, and network details for any IPv4 or IPv6 address instantly. You can type in an IP, drop a file, or simply let the tool identify your current public address. With six specialized modes in one workspace, you get access to standard lookup, geolocation, bulk processing, reverse DNS, and Whois data. Every search uses a reliable geolocation API to present results in a clean dashboard featuring interactive coordinate indicators.

Online IP Address Lookup with Geolocation and Network Details

Identifying an IP address gives you a clear picture of its registration, the operating organization, and the underlying network. Our tool connects to a public database to pull structured info like city, region, country, ISP, ASN, and GPS coordinates. You can see the approximate location visually through the coordinate indicator, while organized data cards make it easy to scan for specific details. Whether you are checking IPv4 or IPv6, you can look up any public address globally.

Upload a File for Quick Lookup

Simply drag and drop a text file into the upload zone or browse your computer to get started. The tool quickly reads the first valid IP from your file and runs a lookup automatically. Various formats like .txt, .csv, and .log files are supported. If you need to process multiple addresses, the Bulk IP Lookup tab lets you upload a list of up to 50 IPs and get results for all of them at once.

Detect Your Own Public IP Address

Our My IP tab identifies your current public-facing address by sending a quick request to a detection service. Once your IP is found, a full geolocation lookup runs automatically to show your city, country, ISP, and timezone. You can hit Refresh if you switch networks or toggle a VPN to update your details. Keep in mind that the result shows your exit IP, so VPN users will see the VPN server location instead of their actual home address.

Bulk IP Lookup, Reverse DNS, and Whois

You can also use three specialized tools for more advanced networking tasks. Bulk IP Lookup allows you to process up to 50 addresses at once from a list or file, generating a detailed table with location and ISP data that you can export for further analysis. If you need to verify mail servers or identify specific hosts, the Reverse DNS Lookup resolves PTR records to find the associated hostname. For deeper registration details, the Whois Lookup provides organization info, ASN data, and full geographic metadata in a terminal style format.

Process Up to 50 IPs at Once

The Bulk Lookup tab works with simple text files or lists where you provide one IP per line. Each address is checked sequentially, and you will see the results populate the table in real time. If an entry is invalid, you will see an error in that row while the other IPs continue to process normally. Once finished, you can download your full results as a tab-separated file that opens easily in any spreadsheet application.

Reverse DNS for Server and Mail Verification

Reverse DNS (rDNS) helps you map an IP address back to a domain name using PTR records. This is a common check for mail servers to verify that a sending IP has a valid hostname matching its domain. Just enter any IP in the Reverse DNS tab to see its resolved hostname or to find out if no PTR record currently exists for that specific address.

Free IP Address Lookup Runs Entirely in Your Browser

You can start using these tools right away without any account or software installation. Just type an IP, upload a file, or detect your own address to see results in seconds. The tool only sends a request to a public API to fetch the necessary data, ensuring your lookups are fast and private. Since everything runs in your browser, your history is cleared as soon as you close the tab. You can easily switch between all six tools using the simple sidebar navigation.

How IP Address Lookup Finds Your Results

Every lookup in this tool queries the ipapi.co geolocation API. When you enter an IP address and click Lookup, the address is sent to this public service, which returns structured JSON data containing location, network, and registration details. No other personal information leaves your browser during the request.

City, Region, and Country

Geographic data is determined by matching the IP against allocation records maintained by the five Regional Internet Registries (RIRs): ARIN, RIPE NCC, APNIC, LACNIC, and AFRINIC. These registries assign IP address blocks to ISPs and organizations in specific regions. Commercial geolocation databases cross-reference these allocations with known infrastructure locations to estimate city-level positions. Accuracy is typically within 20 to 50 km for broadband connections, though mobile and satellite IPs may resolve to broader areas.

ISP, Organization, and ASN

The Internet Service Provider and organization name come from the Autonomous System Number (ASN) assigned to the IP block. Each ASN identifies a network operator and is registered with the relevant RIR. The API resolves which ASN controls the queried address and returns the registered organization name. This is how the tool identifies whether an IP belongs to Google, Cloudflare, a residential ISP, or any other network operator.

Latitude, Longitude, and Coordinate Indicator

Coordinates are derived from the city-level geolocation match. They represent the approximate center of the resolved city or metropolitan area, not the physical location of any specific device or building. The coordinate indicator in the results panel visualizes this approximate position. Accuracy depends on how precisely the database maps the IP block to a geographic point.

Timezone and Postal Code

Once the city and region are resolved, the corresponding IANA timezone identifier (such as America/New_York or Europe/London) is returned. Postal codes are estimated from the resolved geographic area and may not match the exact mailing address of the IP holder. Both values are inferred from the location data rather than queried independently.

Hostname and Reverse DNS

The hostname field is populated by querying PTR (pointer) records in the Domain Name System. PTR records map an IP address back to a domain name, which is the reverse of the standard A-record lookup. Not every IP has a PTR record configured, so this field may appear empty. When available, it typically shows a hostname assigned by the ISP or the server operator, such as dns.google for 8.8.8.8.

My IP Detection

The My IP tab sends a lightweight request to api.ipify.org, a public service that echoes back the IP address your request originates from. If you are behind a VPN, corporate proxy, or carrier-grade NAT, the returned address is the exit point of your traffic rather than your local device IP. After detection, the same ipapi.co API runs a full geolocation lookup on that address.

Accuracy Limitations

IP geolocation provides an estimate, not a precise physical location. Several factors reduce accuracy: VPN and proxy services route traffic through remote servers, mobile carriers may register IP blocks in a central location far from the user, and corporate networks often show the location of a headquarters or data center. Geolocation databases are updated periodically but may lag behind real-world IP reassignments. Results should be treated as approximate.

Privacy and Data Handling

Your IP lookups are not stored on any server operated by this tool. The search history visible in the sidebar exists only in your current browser session and is cleared entirely when you close the tab or click Clear. The only external requests go to ipapi.co for geolocation data and api.ipify.org for My IP detection. No cookies or tracking mechanisms are used for lookup activity.

Related IP and Network Tools

If you regularly work with IP addresses or networking tasks, you might find these complementary tools helpful for your workflow:

• JSON Formatter -- format and validate JSON responses from network APIs
• Base64 Encoder Decoder -- encode or decode Base64 data from network payloads
• UUID Generator -- generate unique identifiers for network and system administration
• Regex Tester -- test regular expressions for parsing log files and IP patterns
• Text Compare -- compare configuration files and network outputs side by side
• URL Encoder Decoder -- encode or decode URLs and query parameters for API calls