These entries are queried from radb.net using whois, you can try my project getting these.
:AS18590 route: 8.42.4.0/23 descr: chi networks origin: AS18590 mnt-by: MAINT-NTTCOM-RA changed: kpack [at] us.ntt.net 20201105 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.100.110.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mount Laurel, NJ 08054 origin: AS18590 remarks: Proxy entry for EDI customer mnt-by: MAINT-AS7922 changed: courtney_smith [at] nospamcable.comcast.com 20180821 source: RADB last-modified: 2023-11-13T15:54:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.152.176.0/22 descr: chi networks origin: AS18590 mnt-by: MAINT-NTTCOM-RA changed: kpack [at] us.ntt.net 20201203 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.22.38.0/24 descr: US Signal downstream customer origin: AS18590 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20131219 #18:46:49Z source: RADB last-modified: 2023-11-13T15:45:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.22.39.0/24 descr: US Signal downstream customer origin: AS18590 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20131219 #18:47:51Z source: RADB last-modified: 2023-11-13T15:45:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.213.188.0/22 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mount Laurel, NJ 08054 origin: AS18590 remarks: Proxy entry for EDI customer mnt-by: MAINT-AS7922 changed: courtney_smith [at] nospamcable.comcast.com 20180830 source: RADB last-modified: 2023-11-13T15:54:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.213.191.0/24 descr: US Signal downstream customer origin: AS18590 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20131219 #18:48:22Z source: RADB last-modified: 2023-11-13T15:45:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.222.32.0/21 descr: Route for downstream Customer CHI NETWORKS origin: AS18590 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20140610 #12:02:07Z source: RADB last-modified: 2023-11-13T15:46:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.222.35.0/24 descr: US Signal downstream customer origin: AS18590 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20131219 #18:44:58Z source: RADB last-modified: 2023-11-13T15:45:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.222.36.0/24 descr: US Signal downstream customer origin: AS18590 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20131219 #18:45:42Z source: RADB last-modified: 2023-11-13T15:45:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.222.37.0/24 descr: US Signal downstream customer origin: AS18590 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20131219 #18:46:13Z source: RADB last-modified: 2023-11-13T15:45:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.178.144.0/22 descr: Route for downstream customer CHINETWORKS origin: AS18590 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20140610 #11:56:58Z source: RADB last-modified: 2023-11-13T15:46:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.80.88.0/21 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mount Laurel, NJ 08054 origin: AS18590 remarks: Proxy entry for EDI customer Chi Networks mnt-by: MAINT-AS7922 changed: courtney_smith [at] nospamcable.comcast.com 20180913 source: RADB last-modified: 2023-11-13T15:54:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.80.92.0/24 descr: US Signal downstream customer origin: AS18590 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20131219 #18:42:55Z source: RADB last-modified: 2023-11-13T15:45:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.80.95.0/24 descr: US Signal downstream customer origin: AS18590 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20131219 #18:43:32Z source: RADB last-modified: 2023-11-13T15:45:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.92.12.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS18590 remarks: Proxy add for customer CHI NETWORKS mnt-by: MAINT-AS7922 changed: chris_johnson8 [at] cable.comcast.com 20170316 source: RADB last-modified: 2023-11-13T15:54:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.92.15.0/24 descr: Chi Networks origin: AS18590 mnt-by: MAINT-AS13354 changed: ipeng [at] corexchange.com 20180518 #20:04:34Z source: RADB last-modified: 2023-11-13T15:59:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.211.220.0/24 descr: chi networks origin: AS18590 mnt-by: MAINT-NTTCOM-RA changed: kpack [at] us.ntt.net 20201204 source: NTTCOM rpki-ov-state: valid route6: 2001:470:20a::/48 origin: AS18590 descr: NET-2001-470-20a---48-AS18590 admin-c: ZH17-ARIN tech-c: ZH17-ARIN mnt-by: MNT-HURC source: ARIN created: 2023-11-10T02:45:13Z last-modified: 2023-11-10T02:45:13Z rpki-ov-state: valid route6: 2606:d600::/32 descr: GLOBAL INTERNET WORKING, INC. origin: AS18590 mnt-by: QTOPIA-MNT changed: palmatier.wayne [at] level3.com 20130202 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source