These entries are queried from radb.net using whois, you can try my project getting these.
:AS1423 route: 8.35.120.0/21 origin: AS1423 mnt-by: MNT-RC-161 descr: 608 Main St Everest KS 66424 United States tech-c: JLB116-ARIN tech-c: NOC11018-ARIN admin-c: NOC11018-ARIN source: ARIN created: 2020-09-24T15:25:26Z last-modified: 2020-09-24T15:25:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 8.48.72.0/21 origin: AS1423 mnt-by: MNT-RC-161 descr: 608 Main St Everest KS 66424 United States tech-c: JLB116-ARIN tech-c: NOC11018-ARIN admin-c: NOC11018-ARIN source: ARIN created: 2020-09-24T15:26:34Z last-modified: 2020-09-24T15:26:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.10.192.0/19 origin: AS1423 descr: Route Registered for Cogent Communications Customer - Rainbow Communications LLC geoidx: US mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20210722 #17:04:03Z source: RADB last-modified: 2023-11-13T16:07:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 76.77.208.0/20 origin: AS1423 mnt-by: MNT-CARSO-4 descr: 608 Main St Everest KS 66424 United States tech-c: NOC11018-ARIN admin-c: NOC11018-ARIN source: ARIN created: 2020-09-22T16:48:58Z last-modified: 2020-09-22T16:48:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.244.224.0/22 origin: AS1423 mnt-by: MNT-CARSO-4 descr: 608 Main St Everest KS 66424 United States tech-c: NOC11018-ARIN admin-c: NOC11018-ARIN source: ARIN created: 2020-09-22T16:49:46Z last-modified: 2020-09-22T16:49:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.193.164.0/22 origin: AS1423 mnt-by: MNT-CARSO-4 descr: 608 Main St Everest KS 66424 United States tech-c: NOC11018-ARIN admin-c: NOC11018-ARIN source: ARIN created: 2020-09-22T16:50:19Z last-modified: 2020-09-22T16:50:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source