These entries are queried from radb.net using whois, you can try my project getting these.
:AS396012 route: 162.253.206.0/23 origin: AS396012 descr: City of Scottsdale supernet. admin-c: SAGAS-ARIN tech-c: ELLIN25-ARIN tech-c: SAGAS-ARIN mnt-by: MNT-CITYOF-57 created: 2024-01-17T21:38:04Z last-modified: 2024-01-17T21:38:04Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.253.206.0/24 origin: AS396012 descr: City of Scottsdale subnet 1. admin-c: SAGAS-ARIN tech-c: ELLIN25-ARIN tech-c: SAGAS-ARIN mnt-by: MNT-CITYOF-57 created: 2024-01-17T21:36:27Z last-modified: 2024-01-17T21:36:27Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.253.207.0/24 origin: AS396012 descr: City of Scottsdale subnet 2. admin-c: SAGAS-ARIN tech-c: ELLIN25-ARIN tech-c: SAGAS-ARIN mnt-by: MNT-CITYOF-57 created: 2024-01-17T21:37:13Z last-modified: 2024-01-17T21:37:13Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source