These entries are queried from radb.net using whois, you can try my project getting these.
:AS11961 route: 64.89.208.0/20 origin: AS11961 descr: PO Box 280 904 C Ave Circle MT 59215 United States member-of: RS-MIDRIVERS admin-c: BQ108-ARIN tech-c: BQ108-ARIN tech-c: MNE112-ARIN mnt-by: MNT-MDRV created: 2021-01-11T21:35:00Z last-modified: 2023-01-26T20:35:11Z source: ARIN rpki-ov-state: valid route: 72.250.128.0/19 origin: AS11961 descr: PO Box 280 904 C Ave Circle MT 59215 United States member-of: RS-MIDRIVERS admin-c: BQ108-ARIN tech-c: BQ108-ARIN tech-c: MNE112-ARIN mnt-by: MNT-MDRV created: 2021-01-11T21:35:33Z last-modified: 2023-01-26T20:35:11Z source: ARIN rpki-ov-state: valid route: 108.59.112.0/20 origin: AS11961 descr: PO Box 280 904 C Ave Circle MT 59215 United States member-of: RS-MIDRIVERS admin-c: BQ108-ARIN tech-c: BQ108-ARIN tech-c: MNE112-ARIN mnt-by: MNT-MDRV created: 2021-01-11T21:35:56Z last-modified: 2023-01-26T20:35:11Z source: ARIN rpki-ov-state: valid route: 144.86.208.0/20 origin: AS11961 descr: PO Box 280 904 C Ave Circle MT 59215 United States member-of: RS-MIDRIVERS admin-c: BQ108-ARIN tech-c: BQ108-ARIN tech-c: MNE112-ARIN mnt-by: MNT-MDRV created: 2023-03-14T06:45:40Z last-modified: 2023-03-14T06:45:40Z source: ARIN rpki-ov-state: valid route: 216.228.32.0/19 origin: AS11961 descr: PO Box 280 904 C Ave Circle MT 59215 United States member-of: RS-MIDRIVERS admin-c: BQ108-ARIN tech-c: BQ108-ARIN tech-c: MNE112-ARIN mnt-by: MNT-MDRV created: 2021-01-11T21:34:29Z last-modified: 2023-01-26T20:35:11Z source: ARIN rpki-ov-state: valid route6: 2607:8380::/32 origin: AS11961 member-of: RS-MIDRIVERS descr: MNT-MDRV route 2607:8380:0000:0000:0000:0000:0000:0000/32 AS11961 admin-c: BQ108-ARIN tech-c: BQ108-ARIN tech-c: MNE112-ARIN mnt-by: MNT-MDRV created: 2021-01-08T17:17:01Z last-modified: 2023-01-26T20:35:11Z source: ARIN rpki-ov-state: valid