These entries are queried from radb.net using whois, you can try my project getting these.
:AS32461 route: 12.188.232.0/24 descr: East River Science Park. 450 E, 29th St 3rd Floor New York, NY 10153 origin: AS32461 mnt-by: MAINT-AS6079 remarks: proxy-registered object for customer remarks: direct inquiries to jyoung [at] la-networks.com changed: michael.toth [at] rcn.com 20110427 source: RADB last-modified: 2023-11-13T15:41:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.146.32.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS32461 remarks: Proxy add for EDIA customer ARE-MA_ mnt-by: MAINT-AS7922 changed: sung_kim [at] comcast.com 20210428 source: RADB last-modified: 2023-11-13T16:05:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 47.45.38.0/24 descr: RR-RC-Alexandria Real Estate Equities, Inc-Pacwest origin: AS32461 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20191015 #16:49:16Z source: RADB last-modified: 2023-11-13T16:15:19Z rpki-ov-state: valid route: 207.237.188.0/24 descr: East River Science Park. 450 E, 29th St 3rd Floor New York, NY 10153 origin: AS32461 mnt-by: MAINT-AS6079 remarks: proxy-registered object for customer remarks: direct inquiries to jyoung [at] la-networks.com changed: michael.toth [at] rcn.com 20110427 source: RADB last-modified: 2023-11-13T15:41:18Z rpki-ov-state: valid