Using Whois - American Registry for Internet Numbers

ARIN’s Whois service is a public resource that allows a user to retrieve information about IP number resources, organizations, POCs, customers, and other entities.

American Registry for Internet Numbers - ARIN

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What is ARIN?

American Registry for Internet Numbers

SOLVED:Use the whois service at the American Registry for Internet Numbers ( to determine the IP address blocks for three universities. Can the whois services be used to determine with certainty the

What You Can Find Out from a WHOIS IP Search

American Registry for Internet Numbers - ARIN

Find Out Who Owns a Domain with WHOIS Lookup

Whois Footprinting for beginners - Hackercool Magazine