These entries are queried from radb.net using whois, you can try my project getting these.
:AS40355 route: 199.244.88.0/22 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS40355 remarks: Proxy for EDI customer Sundance International mnt-by: MAINT-AS7922 changed: courtney_smith [at] nospamhere.cable.comcast.com 20121001 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: valid route: 199.244.88.0/22 origin: AS40355 mnt-by: MNT-SIL-58 descr: Sundance International Global IP tech-c: KUYUK-ARIN admin-c: KUYUK-ARIN source: ARIN created: 2020-10-14T15:19:37Z last-modified: 2020-10-14T15:19:37Z rpki-ov-state: valid route6: 2607:e680::/32 origin: AS40355 mnt-by: MNT-SIL-58 descr: Sundance International LLC tech-c: KUYUK-ARIN admin-c: KUYUK-ARIN source: ARIN created: 2020-10-14T15:23:57Z last-modified: 2020-10-14T15:23:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source