These entries are queried from radb.net using whois, you can try my project getting these.
:AS13751 route: 199.73.44.0/22 descr: Customer Route Object - Bridgepoint Education origin: AS13751 mnt-by: MAINT-ADN-WEST changed: routing [at] americanis.net 20180221 #20:22:58Z source: RADB last-modified: 2023-11-13T15:53:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.73.46.0/24 descr: Customer Route Object - Bridgepoint Education origin: AS13751 mnt-by: MAINT-ADN-WEST changed: routing [at] americanis.net 20180221 #20:23:53Z source: RADB last-modified: 2023-11-13T15:53:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.73.47.0/24 descr: Customer Route Object - Bridgepoint Education origin: AS13751 mnt-by: MAINT-ADN-WEST changed: routing [at] americanis.net 20180221 #20:24:28Z source: RADB last-modified: 2023-11-13T15:53:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source