/etc/whois.conf configuration line for AMPR IPs

whois.conf

# AMPR whois regex, post 44.192.0.0/10 sale
# AMPR space: 44.0.0.0/9, 44.128.0.0/10 (the first three fourths of 44.0.0.0/8)
# Third and forth octet matching regex credit to
# https://stackoverflow.com/questions/5284147/validating-ipv4-addresses-with-regexp
#
# Regex explanation:
# /-> First octet, always 44
# |        /-> One and two digit second octets (0-99)
# |        |          /-> Three digit second octets, from 100-189
# |        |          |           /-> Second octet 190 and 191
# |        |          |           |   (192+ was sold to Amazon)
# |        |          |           |
# |        |          |           |          /->                                 /-> Third and fourth octets
^44\.([0-9]{1,2}|1[0-8][0-9]{1}|19[01])\.(25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])\.(25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])$ whois.ampr.org


# or, a version without the explanation to copy into your whois.conf:


# AMPR whois regex, post 44.192.0.0/10 sale
# AMPR space: 44.0.0.0/9, 44.128.0.0/10 (the first three fourths of 44.0.0.0/8)
^44\.([0-9]{1,2}|1[0-8][0-9]{1}|19[01])\.(25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])\.(25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])$ whois.ampr.org