Just take an IP address (IPv4 or IPv6), a company name, or the autonomous system number (ASN) to get access to all corresponding IP ranges. For each range, IP Netblocks Owner Lookup provides IP netblock borders; first and last netblock update; organization or Internet service provider (ISP) name and address; abuse, administrative, and technical contact information; ASN and netname details; regional Internet registry (RIR); and more. Use this information to optimize your cybersecurity undertakings, uncover the infrastructure and footprint behind an IP address, enrich your marketing operations, and more.
IP netblocks refer to series or ranges of successive IP addresses that are part of the same block, such as 188.8.131.52–184.108.40.206. RIRs assign IP netblocks to netblock owners, typically ISPs and large enterprises that require a sizable number of IP addresses.
IP Netblocks Owner Lookup retrieves data from one of today’s most comprehensive IP Netblocks WHOIS Database that contains information on more than 9.5 million netblocks and tens of thousands of unique ASNs and ranges refreshed daily.
Outputs from our IP netblocks lookup tool are formatted for intuitive data reporting with the most relevant ownership details readily available. The lookup reports can be easily shared with colleagues and relevant stakeholders via permanent URLs.