These entries are queried from radb.net using whois, you can try my project getting these.
:AS22556 route: 69.196.224.0/19 descr: Blackboard Inc 650 Mass Ave, NW Washington, DC 20001 origin: AS22556 mnt-by: MAINT-AS22556 changed: josh [at] blackboard.com 20090531 #17:14:14Z source: RADB last-modified: 2023-11-13T15:40:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.230.224.0/20 descr: Blackboard Inc 650 Mass Ave, NW Washington, DC 20001 origin: AS22556 mnt-by: MAINT-AS22556 changed: josh [at] blackboard.com 20130510 #19:32:38Z source: RADB last-modified: 2023-11-13T15:45:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.167.229.0/24 descr: Blackboard Inc 650 Mass Ave, NW Washington, DC 20001 origin: AS22556 mnt-by: MAINT-AS22556 changed: josh [at] blackboard.com 20090108 #19:42:08Z source: RADB last-modified: 2023-11-13T15:39:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.89.249.0/24 descr: Blackboard Inc 650 Mass Ave, NW Washington, DC 20001 origin: AS22556 mnt-by: MAINT-ASAARNET mnt-by: MAINT-AS22556 changed: nobody [at] aarnet.edu.au 20090108 source: RADB last-modified: 2023-11-13T15:39:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source