These entries are queried from radb.net using whois, you can try my project getting these.
:AS19507 route: 170.28.192.0/23 descr: New York City Transit Authority origin: AS19507 mnt-by: MAINT-AS27506 changed: robert.hinst [at] crowncastle.com 20190331 source: RADB last-modified: 2023-11-13T15:55:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.28.192.0/24 descr: MTA origin: AS19507 mnt-by: MAINT-AS27506 changed: mdimambro [at] lightower.com 20180413 source: RADB last-modified: 2023-11-13T15:53:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.28.193.0/24 descr: MTA origin: AS19507 mnt-by: MAINT-AS27506 changed: mdimambro [at] lightower.com 20180514 source: RADB last-modified: 2023-11-13T15:53:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source