These entries are queried from radb.net using whois, you can try my project getting these.
:AS54648 route: 45.42.250.0/23 origin: AS54648 descr: California Broadband Services Elk Grove CA 95624 United States admin-c: ADMIN3282-ARIN tech-c: SUPPO1259-ARIN mnt-by: MNT-EBS-44 created: 2021-04-08T13:19:07Z last-modified: 2021-04-08T13:19:07Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 130.51.237.0/24 descr: California Broadband Services origin: AS54648 mnt-by: MNT-EBS-44 changed: support [at] calbroadband.net 20210405 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 141.193.247.0/24 descr: California Broadband Services descr: PO Box 189 descr: Wilton, CA 95693 descr: US origin: AS54648 mnt-by: MNT-EBS-44 changed: support [at] calbroadband.net 20181030 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.248.56.0/22 descr: CALBROADBAND ips origin: AS54648 mnt-by: MAINT-AS54648 changed: support [at] calbroadband.net 20181029 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.248.56.0/22 descr: California Broadband Services descr: PO Box 189 descr: Wilton, CA 95693 descr: US origin: AS54648 mnt-by: MNT-EBS-44 changed: support [at] calbroadband.net 20181030 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:ff38::/36 descr: CALBROADBAND ips origin: AS54648 mnt-by: MAINT-AS54648 changed: support [at] calbroadband.net 20181029 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:ff38::/36 descr: California Broadband Services descr: PO Box 189 descr: Wilton, CA 95693 descr: US origin: AS54648 mnt-by: MNT-EBS-44 changed: support [at] calbroadband.net 20181030 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source