These entries are queried from radb.net using whois, you can try my project getting these.
:AS26953 route: 151.147.155.0/24 descr: US Signal downstream customer origin: AS26953 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20090213 #21:54:26Z 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: 151.147.156.0/22 descr: US Signal downstream customer origin: AS26953 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20090213 #21:55:45Z 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: 151.147.160.0/19 descr: US Signal downstream customer origin: AS26953 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20090213 #21:58:28Z 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: 151.147.192.0/22 descr: US Signal downstream customer origin: AS26953 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20090213 #21:58:57Z 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: 151.147.196.0/24 descr: US Signal downstream customer origin: AS26953 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20090213 #21:59:25Z source: RADB last-modified: 2023-11-13T15:39:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source