These entries are queried from radb.net using whois, you can try my project getting these.
:AS53634 route: 170.55.73.0/28 descr: Alvarez & Marsal Disputes and Investigations, LLC origin: AS53634 mnt-by: MAINT-AS27506 changed: guillermo.armaspacheco [at] crowncastle.com 20191010 source: RADB last-modified: 2023-11-13T15:58:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.227.162.0/24 descr: Proxy Registration for Alvarez & Marsal by DLR origin: AS53634 mnt-by: MAINT-TELX changed: ipadmin [at] telx.com 20221007 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.227.162.0/24 descr: Alvarez & Marsal Disputes and Investigations, LLC origin: AS53634 mnt-by: MAINT-AS27506 changed: guillermo.armaspacheco [at] crowncastle.com 20191010 source: RADB last-modified: 2023-11-13T15:58:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source