These entries are queried from radb.net using whois, you can try my project getting these.
:AS18913 route: 204.9.104.0/21 descr: AIR-PIPE, LLC. origin: AS18913 notify: romeo.czumbil [at] tierpoint.com mnt-by: MAINT-ADHT changed: romeo.czumbil [at] tierpoint.com 20170314 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.9.104.0/21 descr: Spectrum Networks Proxy registration origin: AS18913 mnt-by: MAINT-AS11404 changed: john [at] vanoppen.com 20090720 #16:50:20Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.81.152.0/21 descr: AIR-PIPE, LLC. origin: AS18913 notify: romeo.czumbil [at] tierpoint.com mnt-by: MAINT-ADHT changed: romeo.czumbil [at] tierpoint.com 20170314 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.81.152.0/21 descr: AIR-PIPE, LLC. origin: AS18913 mnt-by: MAINT-AS17378 changed: romeo.czumbil [at] tierpoint.com 20191007 source: RADB last-modified: 2023-11-13T16:17:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source