IP Address Lookup
Free IP address lookup for IPv4, IPv6 or hostnames. Get geolocation, ISP, ASN, organization, timezone and proxy signals for dev, QA and security.
What is an IP Address Lookup Tool?
An IP Address Lookup turns a string of digits into context. IPv4 and IPv6 addresses are the numerical labels that route packets across the internet (RFC 791 for IPv4, RFC 2460 for IPv6), but on their own they tell you almost nothing about the device or network behind them.
This tool queries a geolocation database for the address you enter and returns what is actually known about it: country, region, city, approximate coordinates, ISP, organisation, ASN, timezone and signals about whether the address belongs to a hosting provider, a proxy or a VPN. It accepts IPv4 (8.8.8.8), IPv6 (2001:4860:4860::8888) and bare hostnames, which are resolved through DNS per RFC 1035 before the lookup runs.
How to Use IP Address Lookup Tool?
Three steps.
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Step 1. Type or paste an IP or a domain. IPv4 (
8.8.8.8), IPv6 (2001:4860:4860::8888) and bare domains (google.com) all work. Hit "Your Own IP" if you want to look up your current address.
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Step 2. Solve the CAPTCHA.
- Step 3. Hit GET DETAILS. The tool resolves the domain (if needed), queries the geolocation database and returns the result.
The result page lays out the location (country, region, city, coordinates), network details (ISP, organisation, ASN), timezone, and proxy or hosting signals. There is an interactive map for the coordinates, modals for the long-form details, copy-to-clipboard on every field, and exports in JSON, CSV or TXT.
IPv4 vs IPv6: What's the Difference?
Before diving into IP lookup functionality, it's essential to understand the two primary IP address formats used on the internet today. The lookup tool supports both formats, each serving different purposes in modern networking:
IPv4 (Internet Protocol Version 4)
Format: IPv4 addresses use a 32-bit format consisting of four octets separated by dots (e.g., 192.168.1.1, 8.8.8.8). This format provides approximately 4.3 billion unique addresses per RFC 791.
Decimal notation (0-255 per octet), 32-bit address space, supports NAT (Network Address Translation) for address conservation, and is compatible with most legacy systems and applications. IPv4 has been the dominant protocol since the 1980s and remains widely used today. However, IPv4 address exhaustion has led to the development of IPv6.
IPv6 (Internet Protocol Version 6)
Format: IPv6 addresses use a 128-bit format consisting of eight groups of hexadecimal digits separated by colons (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334, 2001:4860:4860::8888). This format provides virtually unlimited addresses (3.4 × 10³⁸) per RFC 2460.
Hexadecimal notation, 128-bit address space, built-in security features (IPsec), improved routing efficiency, and simplified address configuration. IPv6 adoption is increasing globally, though IPv4 remains prevalent. IPv6 solves IPv4 exhaustion concerns and enables future internet growth.
Dual-Stack Networks
Why Both Formats Matter: Our IP Address Lookup tool supports both IPv4 and IPv6 addresses because modern networks use both protocols simultaneously.
Many organizations operate dual-stack networks supporting both formats simultaneously. Understanding which format you're working with helps interpret geolocation results accurately, as IPv6 geolocation databases may have different accuracy levels compared to IPv4 databases. The lookup tool automatically detects and handles both formats per RFC 791 (IPv4) and RFC 2460 (IPv6) standards.
What Data Does IP Address Lookup Tool Provide?
What you get back for every successful lookup:
Country name and ISO 3166-1 alpha-2 country code for international identification, region/state/province for regional analysis, city name for local context, latitude and longitude coordinates (WGS84 standard) for mapping, and timezone information (timezone ID, UTC offset, abbreviation) for time-based analysis.
Internet Service Provider (ISP) name identifying the connection provider, organization name showing registered entity ownership, and Autonomous System Number (ASN) in standard format (e.g., AS12345) for BGP routing analysis and network topology understanding.
Proxy/VPN detection identifying common proxy/VPN IP ranges for security analysis, hosting provider detection identifying datacenter/hosting IPs, and connection type classification distinguishing residential vs. commercial IPs for risk assessment.
IP address version (IPv4 or IPv6) identification, resolved IP address for domain inputs, and IP address format validation per RFC 791 (IPv4) and RFC 2460 (IPv6) standards ensuring data accuracy.
Interactive map display using Leaflet.js showing approximate geographic location based on coordinates, with marker placement and zoom functionality enabling visual analysis of IP locations.
How Accurate Is IP Geolocation?
Understanding IP geolocation accuracy is crucial for making informed decisions based on lookup results. Accuracy varies significantly depending on the level of detail required and the type of network connection being analyzed:
Highest accuracy (95%+) for country identification. This level is highly reliable for geoblocking, compliance verification, and regional content delivery. Country-level data is maintained by RIRs and is generally very accurate.
Moderate accuracy (typically 50-100 km radius). City-level geolocation reflects ISP or network infrastructure location rather than exact device location. Mobile networks may show carrier location, corporate networks may show headquarters location, and residential connections typically show ISP service area rather than individual addresses.
High accuracy for ISP identification. ISP information is reliable for network troubleshooting, security analysis, and connection type classification. This data comes directly from RIR allocation records and ISP submissions.
Mobile IP addresses often show carrier location or network infrastructure location rather than device location. Accuracy varies significantly by carrier and mobile technology (3G/4G/5G). Mobile users may appear to be in different cities than their actual location, especially when roaming.
IP geolocation shows exit node location, not origin location. This is expected behavior for privacy tools and may significantly affect accuracy for security analysis. VPN users will appear to be in the location of their VPN server, which may be in a different country or region.
Corporate networks often show headquarters location rather than branch office or remote worker location. Centralized routing and network architecture can affect geographic accuracy, making it appear that all corporate users are in one location.
Newer IPv6 allocations may have less precise geolocation data compared to IPv4 addresses. Database accuracy improves over time as IPv6 adoption increases and more data becomes available. Some IPv6 addresses may only have country-level accuracy initially.
IP allocations change regularly as ISPs reassign addresses and networks evolve. Geolocation databases are updated continuously, but some data may lag by days or weeks. Critical applications should verify currency of geolocation data.
How IP Geolocation Works?
Our IP Geolocation tool operates through an automated process that follows industry-standard geolocation protocols and queries authoritative geolocation databases per RFC 1035 (DNS) and Regional Internet Registry (RIR) standards:
1. Input Processing & DNS Resolution
The tool accepts IPv4 addresses (e.g., 8.8.8.8), IPv6 addresses (e.g., 2001:4860:4860::8888), or domain names (e.g., google.com). When a domain name is provided, the tool performs DNS resolution per RFC 1035 to convert the domain to its corresponding IP address. Input validation ensures the IP address format is correct (IPv4 or IPv6) before proceeding with geolocation lookup.
Validates IP address format (IPv4 or IPv6) or domain name format before processing.
Converts domain names to IP addresses using DNS queries per RFC 1035 standards.
Automatically detects IPv4 (32-bit) or IPv6 (128-bit) address formats for appropriate handling.
Normalizes IP addresses to standard format for consistent database queries.
2. Geolocation Database Query & API Request
Once the IP address is validated, the tool queries authoritative geolocation databases through the IPWHO API service. These databases are compiled from multiple authoritative sources including Regional Internet Registry (RIR) allocation records (ARIN, RIPE, APNIC, LACNIC, AFRINIC), ISP submissions, BGP routing tables, and network operator data. The API performs IP range matching to identify which IP address block contains the target address.
Identifies which IP address range (CIDR block) contains the target IP address for geolocation lookup.
Queries Regional Internet Registry databases (ARIN, RIPE, APNIC, LACNIC, AFRINIC) for IP allocation records.
Analyzes Border Gateway Protocol (BGP) routing tables to determine network topology and geographic routing.
Retrieves ISP submissions and network operator data for accurate organization and ASN information.
Makes secure HTTPS requests to IPWHO API with timeout handling and error management for reliable results.
3. Data Extraction & Processing
The geolocation database returns the metadata it has on the range that contains the address: country, region, city, latitude, longitude, ISP, organisation, ASN, timezone, and signals for proxy, VPN or hosting infrastructure. The fields are normalised before they hit the response so that downstream code does not have to handle six casings of "United Kingdom".
Extracts country, region, city, and coordinate information (latitude/longitude) from geolocation database.
Retrieves ISP name, organization details, and Autonomous System Number (ASN) for network identification.
Processes timezone information including timezone ID, name, and abbreviation for accurate time representation.
Detects proxy services, VPN connections, and hosting provider identification for security analysis.
Normalizes and validates extracted data to ensure consistency, handling missing fields and data format variations.
4. Result Compilation & Presentation
The frontend renders the response into status cards you can scan at a glance, an interactive map for the coordinates, and modals for the full record. Every field is copy-to-clipboard, and the whole result can be exported as JSON, CSV or TXT.
Compiles all geolocation data into structured format with consistent field naming and data types.
Color-coded status cards for the headline data, with modals for the full record when you need it.
Renders geographic location on interactive maps using latitude/longitude coordinates for visual representation.
Provides export functionality in JSON (RFC 8259), CSV, and TXT formats for documentation and analysis.
Handles API failures, invalid IP addresses, and network errors with clear error messages and graceful degradation.
Common IP Address Lookup Tool Use Cases
The most common reasons people reach for an IP lookup, in plain terms:
Identify suspicious login attempts from unexpected geographic locations, detect potential fraud patterns by analyzing IP origins, trace attack sources during security incidents, and implement IP-based access controls for enhanced protection.
Serve region-appropriate content based on user location, automatically select language preferences, customize currency and pricing displays, and comply with regional content licensing requirements.
Diagnose routing issues by identifying IP origin, analyze network performance problems by understanding traffic sources, identify connectivity issues through geographic analysis, and understand network topology for technical support.
Verify geographic origin for export compliance requirements, enforce regional access controls for licensed content, meet regulatory requirements for data residency, and ensure compliance with data protection regulations (GDPR, CCPA).
Understand user geographic distribution for market analysis, analyze content performance by region, plan infrastructure deployment based on user locations, and conduct demographic research for business planning.
Privacy and Legal Considerations for IP Lookup
IP address lookup involves privacy considerations that users should understand before implementing geolocation features. This section addresses key privacy and legal aspects of IP geolocation data:
In the European Union, IP addresses may be considered personal data when combined with other information. Organizations using IP geolocation must have a lawful basis for processing, provide transparency about data collection, and respect user rights including access, rectification, and erasure.
California residents have rights regarding collection and use of personal information, which may include IP addresses. Organizations must disclose data collection practices, provide opt-out mechanisms, and allow consumers to request deletion of their personal information where applicable.
Various jurisdictions have privacy laws affecting IP geolocation, including PIPEDA (Canada), LGPD (Brazil), and national data protection laws. Organizations should understand applicable regulations in their operating regions and ensure compliance with all relevant local and international privacy frameworks.
Clearly disclose when and why IP geolocation is being used, and provide privacy policies explaining data collection and use practices. Maintain clear documentation about data processing activities and make privacy policies easily accessible to build trust and ensure compliance.
Collect only necessary geolocation data for your use case and use aggregate analysis when possible rather than individual tracking. Implement data retention policies limiting storage duration and regularly review data collection practices to ensure compliance with regulatory requirements.
Provide mechanisms for users to access collected geolocation data and allow opt-out where feasible and legally required. Honor deletion requests promptly and ensure users can easily exercise their rights through clear processes and timely responses.
Encrypt geolocation data in transit and at rest, and implement access controls limiting who can view geolocation information. Conduct regular security audits, use industry-standard encryption protocols, and establish incident response procedures to protect user data and prevent unauthorized access.
Our IP Address Lookup tool is designed with privacy in mind and we do not store, log, or retain any IP addresses, domain names, geolocation data, or lookup results. All IP lookups are performed in real-time exclusively for the duration of your request and are immediately discarded, ensuring your privacy and data protection.
Features and Capabilities
What you get, in one place.
Supports both IPv4 addresses (RFC 791) and IPv6 addresses (RFC 2460) with proper format validation and geolocation lookup, ensuring compatibility with modern and legacy network infrastructure.
Automatically resolves domain names to IP addresses using DNS queries (A/AAAA records per RFC 1035) before performing geolocation lookup, allowing users to lookup domains without manual IP resolution.
Queries authoritative geolocation databases in real-time to retrieve current IP information directly from maintained databases, ensuring up-to-date and accurate results.
Displays approximate geographic location on interactive maps using Leaflet.js with marker placement and zoom functionality, enabling visual analysis of IP locations.
Retrieves ISP name, organization details, and Autonomous System Number (ASN) for complete network identification and routing analysis.
Identifies proxy/VPN usage and hosting provider IPs for enhanced security analysis and fraud prevention, helping distinguish residential from commercial connections.
Allows exporting IP information in JSON (RFC 8259), CSV, and TXT formats for documentation, analysis, monitoring, and integration with other systems.
All IP lookups are performed in real-time with no data storage, ensuring your IP information remains private and secure. We do not retain or log IP addresses or lookup results.
Frequently Asked Questions (FAQ)
IP address lookup provides geographic location (country, region, city, coordinates), network information (ISP, organization, ASN), timezone details, and security indicators (proxy/VPN detection, hosting provider identification). This information helps identify where network traffic originates and understand connection characteristics for security, compliance, and troubleshooting purposes.
IP geolocation provides approximate location information, typically accurate to city-level (50-100 km radius). It reflects ISP or network infrastructure location rather than exact device location. Country-level accuracy is high (95%+), but city-level accuracy is moderate and should not be used for precise location tracking. IP geolocation cannot pinpoint exact addresses or individual device locations.
No, IP geolocation cannot reveal exact addresses or individual locations. It provides approximate location information reflecting ISP or network infrastructure location, typically accurate to city-level (50-100 km radius). IP addresses alone are not personally identifiable information, and geolocation data should not be used for precise location tracking, emergency services, or exact location determination.
IPv4 addresses (32-bit, e.g., 8.8.8.8) have more mature geolocation databases with higher accuracy due to longer history and more data. IPv6 addresses (128-bit, e.g., 2001:4860:4860::8888) may have less precise geolocation data initially, but accuracy improves as adoption increases. The lookup tool supports both formats and provides geolocation data for both IPv4 and IPv6 addresses.
ASN identifies the network (autonomous system) that owns an IP address range. It's used for BGP routing and helps identify network operators, analyze routing paths, and understand network topology. ASN information is valuable for network troubleshooting, security analysis, and understanding internet infrastructure. Format: AS followed by a number (e.g., AS12345).
Proxy and VPN detection identifies IP addresses that belong to known proxy servers, VPN services or datacenter ranges, using a mix of heuristics and pattern matching. It is a signal, not a verdict. New services may evade detection, residential proxies are hard to spot, and some perfectly legitimate services use proxy-like infrastructure. Treat proxy detection as one factor in risk assessment, not as a standalone security control.
No, our IP Address Lookup tool does not store IP addresses, domain names, geolocation data, or lookup results in our application database. All IP lookups are performed in real-time exclusively for the duration of your request and are immediately discarded. Standard server access logs may still be created as described in our Privacy Policy.
Yes, you can lookup your own IP address by clicking the "Your Own IP" link in the tool interface. This automatically detects your current IP address and performs a lookup, showing you the geolocation and network information associated with your internet connection. This is useful for understanding how your IP appears to websites and services.