These entries are queried from radb.net using whois, you can try my project getting these.
:AS33729 route: 162.254.52.0/22 descr: NET-162-254-52-0-1 Jacob K. Javits Convention Center 644 West 34th Street New York, NY 10001 US remarks: proxy-registered object for customer Direct inquiries to tgaburungyi [at] javitscenter.com origin: AS33729 mnt-by: MAINT-AS6079 changed: dwayne.martin [at] rcn.com 20140916 source: RADB last-modified: 2023-11-13T15:46:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.254.54.0/23 descr: NET-162-254-52-0-1 Jacob K. Javits Convention Center 644 West 34th Street New York, NY 10001 US remarks: proxy-registered object for customer Direct inquiries to tgaburungyi [at] javitscenter.com origin: AS33729 mnt-by: MAINT-AS6079 changed: dwayne.martin [at] rcn.com 20150303 source: RADB last-modified: 2023-11-13T15:47:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source