These entries are queried from radb.net using whois, you can try my project getting these.
:AS10755 route: 129.170.0.0/16 origin: AS10755 mnt-by: MNT-DARTMO-Z descr: DARTMOUTH-V4-1 assigned by ARIN tech-c: ZD56-ARIN admin-c: ZD56-ARIN member-of: RS-DARTMOUTH-V4-ROUTES source: ARIN created: 2020-06-15T12:40:52Z last-modified: 2020-06-15T12:40:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 129.170.0.0/16 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS10755 remarks: Proxy for EDI customer Dartmouth College mnt-by: MAINT-AS7922 changed: courtney_smith [at] nospamhere.cable.comcast.com 20150323 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2604:5f00::/32 origin: AS10755 mnt-by: MNT-DARTMO descr: DARTMOUTH-V6-1 assigned by ARIN tech-c: ZD56-ARIN admin-c: ZD56-ARIN member-of: RS-DARTMOUTH-V6-ROUTES source: ARIN created: 2020-06-15T12:42:42Z last-modified: 2020-06-15T12:42:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source