These entries are queried from radb.net using whois, you can try my project getting these.
:AS13610 route: 63.211.160.0/22 descr: NWP-DSL-AGG origin: AS13610 mnt-by: NETWORKPLUS-MNT changed: dbotelho [at] np1.net 20000110 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 166.84.140.0/23 descr: NWP-MANHATTANMEDIA-140 origin: AS13610 mnt-by: NETWORKPLUS-MNT changed: dbotelho [at] np1.net 20000327 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 166.84.174.0/24 descr: NWP-MANHATTANMEDIA-174 origin: AS13610 mnt-by: NETWORKPLUS-MNT changed: dbotelho [at] np1.net 20000327 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.237.0.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS13610 remarks: Proxy Add for EDIA Customer Provo Craft mnt-by: MAINT-AS7922 changed: robert_beauvais [at] cable.comcast.com 20120117 #19:34:44Z 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: 216.0.97.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS13610 remarks: Proxy entry for customer Provocraft mnt-by: MAINT-AS7922 changed: john_ta [at] cable.comcast.com 20110420 #20:37:25Z source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source