These entries are queried from radb.net using whois, you can try my project getting these.
:AS20383 route: 199.83.180.0/22 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS20383 remarks: Proxy add for EDIA customer Exchange Bank mnt-by: MAINT-AS7922 changed: ryan_mcclean [at] comcast.com 20190313 source: RADB last-modified: 2023-11-13T15:55:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.83.180.0/24 descr: Exchange Bank descr: Operations Center descr: 440 Aviation Blvd. descr: Santa Rosa, CA 95403-1069 descr: US origin: AS20383 member-of: RS-EXCHANGEBANK notify: NOC [at] ExchangeBank.Com mnt-by: MNT-EB changed: NOC [at] ExchangeBank.Com 20190227 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.83.182.0/24 descr: Exchange Bank descr: Operations Center descr: 440 Aviation Blvd. descr: Santa Rosa, CA 95403-1069 descr: US origin: AS20383 member-of: RS-EXCHANGEBANK notify: NOC [at] ExchangeBank.Com mnt-by: MNT-EB changed: NOC [at] ExchangeBank.Com 20190227 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.83.182.0/24 origin: AS20383 descr: proxy route object for customer SungardAS admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20201120 #17:24:42Z source: RADB last-modified: 2023-11-13T16:03:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source