Tous les objets CHD sont créés avec le mnter (mainteneur) fr-commingeshd-1-mnt :

whois -i mnt-by fr-commingeshd-1-mnt |grep Information
# Information related to '185.131.40.0 - 185.131.41.255'
# Information related to '185.131.40.0 - 185.131.43.255'
# Information related to '185.131.42.0 - 185.131.42.255'
# Information related to '2a03:a0a0:1::/48'
# Information related to '2a03:a0a0:2::/48'
# Information related to '2a03:a0a0::/29'
# Information related to '2a03:a0a0::/48'
# Information related to '0.0.0.0.0.a.0.a.3.0.a.2.ip6.arpa'
# Information related to '1.0.0.0.0.a.0.a.3.0.a.2.ip6.arpa'
# Information related to '2.0.0.0.0.a.0.a.3.0.a.2.ip6.arpa'
# Information related to '40.131.185.in-addr.arpa'
# Information related to '41.131.185.in-addr.arpa'
# Information related to '42.131.185.in-addr.arpa'
# Information related to 'fr-commingeshd-1-mnt'
# Information related to 'ORG-CHD1-RIPE'
# Information related to 'AR34604-RIPE'
# Information related to 'CC14458-RIPE'
whois -i mnt-by fr-commingeshd-1-mnt