These entries are queried from radb.net using whois, you can try my project getting these.
:AS31850 route: 12.40.128.0/23 descr: PNAP-CHG ussignal origin: AS31850 mnt-by: MAINT-AS1828 changed: dchase [at] internap.com 20060406 source: RADB last-modified: 2023-11-13T16:13:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.164.98.0/23 descr: PNAP-CHG ussignal origin: AS31850 mnt-by: MAINT-AS1828 changed: dchase [at] internap.com 20060406 source: RADB last-modified: 2023-11-13T16:13:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.119.240.0/21 descr: Router for downstream customer Awecomm origin: AS31850 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20091123 #17:06:47Z source: RADB last-modified: 2023-11-13T15:40:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.93.48.0/22 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS31850 remarks: Proxy add for EDIA customer Awecomm Technologies LLC mnt-by: MAINT-AS7922 changed: adam_berg [at] cable.comcast.com 20140411 #15:48:14Z 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: 208.93.49.0/24 descr: Awecomm / Open Market origin: AS31850 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20080807 #15:50:03Z source: RADB last-modified: 2023-11-13T15:39:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.93.51.0/24 descr: Awecomm / Open Market origin: AS31850 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20080807 #15:48:45Z source: RADB last-modified: 2023-11-13T15:39:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source