These entries are queried from radb.net using whois, you can try my project getting these.
:AS16824 route: 149.20.232.0/21 origin: AS16824 descr: Harlan Municipal Utilities (AS16824) mnt-by: MAINT-AS5056 changed: packetnetworking [at] aureon.com 20240213 # 2058Z source: RADB last-modified: 2024-02-13T20:58:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 149.20.232.0/21 origin: AS16824 descr: 2412 Southwest Ave. P.O. Box 71 Harlan IA 51537 United States admin-c: DOTZL1-ARIN tech-c: DOTZL1-ARIN tech-c: PIEKE-ARIN mnt-by: MNT-HMU-1 created: 2020-07-24T15:38:39Z last-modified: 2024-03-19T13:24:15Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 149.20.232.0/24 origin: AS16824 descr: 2412 Southwest Ave. P.O. Box 71 Harlan IA 51537 United States admin-c: DOTZL1-ARIN tech-c: DOTZL1-ARIN tech-c: PIEKE-ARIN mnt-by: MNT-HMU-1 created: 2023-11-28T14:41:31Z last-modified: 2024-03-19T13:24:15Z source: ARIN rpki-ov-state: valid route: 149.20.233.0/24 origin: AS16824 descr: 2412 Southwest Ave. P.O. Box 71 Harlan IA 51537 United States admin-c: DOTZL1-ARIN tech-c: DOTZL1-ARIN tech-c: PIEKE-ARIN mnt-by: MNT-HMU-1 created: 2023-11-28T14:44:00Z last-modified: 2024-03-19T13:24:15Z source: ARIN rpki-ov-state: valid route: 149.20.234.0/24 origin: AS16824 descr: 2412 Southwest Ave. P.O. Box 71 Harlan IA 51537 United States admin-c: DOTZL1-ARIN tech-c: DOTZL1-ARIN tech-c: PIEKE-ARIN mnt-by: MNT-HMU-1 created: 2023-11-28T14:44:36Z last-modified: 2024-03-19T13:24:15Z source: ARIN rpki-ov-state: valid route: 149.20.235.0/24 origin: AS16824 descr: 2412 Southwest Ave. P.O. Box 71 Harlan IA 51537 United States admin-c: DOTZL1-ARIN tech-c: DOTZL1-ARIN tech-c: PIEKE-ARIN mnt-by: MNT-HMU-1 created: 2023-11-28T14:45:43Z last-modified: 2024-03-19T13:24:15Z source: ARIN rpki-ov-state: valid route: 149.20.236.0/24 origin: AS16824 descr: 2412 Southwest Ave. P.O. Box 71 Harlan IA 51537 United States admin-c: DOTZL1-ARIN tech-c: DOTZL1-ARIN tech-c: PIEKE-ARIN mnt-by: MNT-HMU-1 created: 2023-11-28T14:46:14Z last-modified: 2024-03-19T13:24:15Z source: ARIN rpki-ov-state: valid route: 149.20.237.0/24 origin: AS16824 descr: 2412 Southwest Ave. P.O. Box 71 Harlan IA 51537 United States admin-c: DOTZL1-ARIN tech-c: DOTZL1-ARIN tech-c: PIEKE-ARIN mnt-by: MNT-HMU-1 created: 2023-11-28T14:46:45Z last-modified: 2024-03-19T13:24:15Z source: ARIN rpki-ov-state: valid route: 149.20.238.0/24 origin: AS16824 descr: 2412 Southwest Ave. P.O. Box 71 Harlan IA 51537 United States admin-c: DOTZL1-ARIN tech-c: DOTZL1-ARIN tech-c: PIEKE-ARIN mnt-by: MNT-HMU-1 created: 2023-11-28T14:47:13Z last-modified: 2024-03-19T13:24:15Z source: ARIN rpki-ov-state: valid route: 149.20.239.0/24 origin: AS16824 descr: 2412 Southwest Ave. P.O. Box 71 Harlan IA 51537 United States admin-c: DOTZL1-ARIN tech-c: DOTZL1-ARIN tech-c: PIEKE-ARIN mnt-by: MNT-HMU-1 created: 2023-11-28T14:47:39Z last-modified: 2024-03-19T13:24:15Z source: ARIN rpki-ov-state: valid