These entries are queried from radb.net using whois, you can try my project getting these.
:AS46788 route: 204.194.248.0/21 descr: US Signal downstream customer origin: AS46788 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20090217 #16:48:23Z source: RADB last-modified: 2023-11-13T15:39:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.194.248.0/22 descr: US Signal downstream customer origin: AS46788 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20081222 #16:14:55Z source: RADB last-modified: 2023-11-13T15:39:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.194.252.0/22 descr: US Signal downstream customer origin: AS46788 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20081222 #16:15:29Z source: RADB last-modified: 2023-11-13T15:39:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.194.252.0/23 descr: RR-RC-Milwaukee County Government-Milwaukee origin: AS46788 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.194.252.0/24 descr: US Signal downstream customer origin: AS46788 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20090723 #16:58:54Z source: RADB last-modified: 2023-11-13T15:40:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.194.254.0/24 descr: RR-RC-Milwaukee County Government-Milwaukee origin: AS46788 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.194.255.0/24 descr: RR-RC-GMIA(General Mitchell International Airport)-Milwaukee origin: AS46788 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:120:b000::/40 descr: RR-RC-Milwaukee County Government-Milwaukee origin: AS46788 mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source