These entries are queried from radb.net using whois, you can try my project getting these.
:AS54275 route: 64.135.155.0/24 descr: Comcast cable Communications origin: AS54275 remarks: proxy route add for Comcast customer - CDGI NAP mnt-by: MAINT-AS7922 changed: robert_beauvais [at] cable.comcast.com 20111213 #19:54:22Z 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: 64.135.156.0/22 descr: Comcast Cable Communications origin: AS54275 remarks: Comcast Proxy route add for customer: CDGI mnt-by: MAINT-AS7922 changed: robert_beauvais [at] cable.comcast.com 20111229 #16:15:59Z 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: 64.135.156.0/24 descr: Comcast Cable Communications origin: AS54275 remarks: Comcast Proxy route add for customer: CDGI mnt-by: MAINT-AS7922 changed: robert_beauvais [at] cable.comcast.com 20111213 #19:55:43Z 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: 199.202.216.0/21 descr: Comcast Cable Communications - Proxy Route for Customer CDGI NAP origin: AS54275 remarks: Comcast Cable Communications - Proxy Route for Customer CDGI NAP mnt-by: MAINT-AS7922 changed: robert_beauvais [at] cable.comcast.com 20111213 #19:50:52Z source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source