These entries are queried from radb.net using whois, you can try my project getting these.
:AS54671 route: 199.231.88.0/22 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS54671 remarks: Proxy for EDI customer Walsworth Publishing Space mnt-by: MAINT-AS7922 changed: courtney_smith [at] nospamhere.cable.comcast.com 20120831 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.231.88.0/24 origin: AS54671 descr: walsworth mnt-by: MAINT-AS54671 changed: don.paalhar [at] walsworth.com 20200929 #14:20:24Z source: RADB last-modified: 2023-11-13T16:01:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:10e:9000::/44 descr: RR-RC-WALSWORTH PUBLISHING COMPANY-Kansas City origin: AS54671 mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source