$ whois 204.236.186.1
#
# Query terms are ambiguous. The query is assumed to be:
# "n 204.236.186.1"
#
# Use "?" to get help.
#
#
# The following results may also be obtained via:
# http://whois.arin.net/rest/nets;q=204.236.186.1?showDetails=true&showARIN=true
#
Amazon.com, Inc. AMAZON-EC2-6 (NET-204-236-128-0-1) 204.236.128.0 - 204.236.255.255
American Registry for Internet Numbers NET204 (NET-204-0-0-0-0) 204.0.0.0 - 204.255.255.255
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#