These entries are queried from radb.net using whois, you can try my project getting these.
:AS33373 route: 198.187.148.0/23 descr: Federal Home Loan Bank of Boston origin: AS33373 mnt-by: MAINT-AS27506 changed: robert.hinst [at] crowncastle.com 20190227 source: RADB last-modified: 2023-11-13T15:55:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.187.148.0/24 descr: Federal Home Loan Bank of Boston origin: AS33373 mnt-by: MAINT-AS27506 changed: robert.hinst [at] crowncastle.com 20190214 #19:39:41Z source: RADB last-modified: 2023-11-13T15:55:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.187.149.0/24 descr: Federal Home Loan Bank of Boston origin: AS33373 mnt-by: MAINT-AS27506 changed: robert.hinst [at] crowncastle.com 20190214 #19:39:41Z source: RADB last-modified: 2023-11-13T15:55:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source