These entries are queried from radb.net using whois, you can try my project getting these.
:AS40284 route: 74.114.4.0/22 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS40284 remarks: Proxy add for EDIA City of Glenwood Springs mnt-by: MAINT-AS7922 changed: sean_boulaphinh [at] cable.comcast.com 20121016 #23:30:52Z 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: 74.114.4.0/24 origin: AS40284 descr: Proxy route for AS40284 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200312 #14:50:02Z source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.114.5.0/24 origin: AS40284 descr: Proxy route for AS40284 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200312 #14:50:21Z source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.114.6.0/24 origin: AS40284 descr: Proxy route for AS40284 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200312 #14:50:39Z source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.114.7.0/24 origin: AS40284 descr: Proxy route for AS40284 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200312 #14:51:00Z source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.246.199.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS40284 remarks: Proxy add for EDIA customer City of Glenwood Springs mnt-by: MAINT-AS7922 changed: ronier_sierra [at] comcast.com 20200210 source: RADB last-modified: 2023-11-13T15:59:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.72.64.0/21 descr: PNAP-DEN glenwood origin: AS40284 mnt-by: MAINT-AS1828 changed: dmbogo [at] internap.com 20061110 source: RADB last-modified: 2023-11-13T16:13:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.72.64.0/24 origin: AS40284 descr: Proxy route for AS40284 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200312 #16:10:06Z source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.72.65.0/24 origin: AS40284 descr: Proxy route for AS40284 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200312 #16:10:27Z source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.72.66.0/24 origin: AS40284 descr: Proxy route for AS40284 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200312 #16:10:43Z source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.72.68.0/24 origin: AS40284 descr: Proxy route for AS40284 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200312 #16:10:59Z source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.72.69.0/24 origin: AS40284 descr: Proxy route for AS40284 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200312 #16:11:18Z source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.72.70.0/24 origin: AS40284 descr: Proxy route for AS40284 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200312 #16:11:34Z source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.72.71.0/24 origin: AS40284 descr: Proxy route for AS40284 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200312 #16:11:50Z source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source