IP Lookup API

API ID 13836

Look up any IPv4/IPv6 address via RDAP — get the regional internet registry (ARIN/RIPE NCC/APNIC/LACNIC/AFRINIC), network block, organization, and country. Fast, cached, covers all 5 RIRs.

API Documentation

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API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the IP Lookup API simply include your bearer token in the Authorization header.

Headers
Header Description
Authorization Required Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

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Overview

Look up any IPv4/IPv6 address via RDAP — get the regional internet registry (ARIN/RIPE NCC/APNIC/LACNIC/AFRINIC), network block, organization, and country. Fast, cached, covers all 5 RIRs.

IP Lookup API FAQs

The IP Lookup API returns detailed information about an IPv4 or IPv6 address, including the regional internet registry (RIR), network block, organization, and country. This data helps identify the ownership and allocation of the IP address.

Key fields in the response include "ip" (the queried address), "version" (IPv4 or IPv6), "allocated" (allocation status), "name" (organization name), "handle" (network identifier), "country" (if available), and "startAddress" and "endAddress" (network range).

The response data is structured in JSON format, with key-value pairs representing various attributes of the IP address. This format allows easy parsing and integration into applications, enabling developers to extract specific information efficiently.

The endpoint provides information such as the RIR responsible for the IP address, the organization that owns it, the network block details, and the geographical country associated with the address, if applicable.

The data is sourced from the Regional Internet Registries (RIRs) including ARIN, RIPE NCC, APNIC, LACNIC, and AFRINIC. This ensures that the information is accurate and up-to-date, reflecting the current state of IP address allocations.

Typical use cases include network management, security analysis, geolocation services, and compliance checks. Organizations can use this data to identify the ownership of IP addresses and assess potential risks associated with them.

Users can customize their requests by specifying the IPv4 or IPv6 address they wish to look up. The API accepts any valid IP address format, allowing for flexible queries based on user needs.

Users can utilize the returned data to enhance network security, perform IP address tracking, and analyze traffic sources. For example, knowing the organization and country can help in identifying potential threats or understanding user demographics.

General FAQs

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