These entries are queried from radb.net using whois, you can try my project getting these.
:AS398437 route: 170.39.36.0/22 origin: AS398437 descr: PO Box 627 216 Main St Hot Springs MT 59845 United States admin-c: SNOWB8-ARIN tech-c: BISHO315-ARIN tech-c: SNOWB8-ARIN mnt-by: MNT-HST-12 created: 2022-06-09T17:19:37Z last-modified: 2022-06-09T17:19:37Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.39.36.0/22 origin: AS398437 descr: HSTC ASN mnt-by: MAINT-AS398437 changed: tsnow [at] hotspringsmt.net 20201123 #17:27:43Z source: RADB last-modified: 2023-11-13T16:11:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:fd39::/36 origin: AS398437 descr: PO Box 627 216 Main St Hot Springs MT 59845 United States admin-c: SNOWB8-ARIN tech-c: BISHO315-ARIN tech-c: SNOWB8-ARIN mnt-by: MNT-HST-12 created: 2022-06-09T17:20:32Z last-modified: 2022-06-09T17:20:32Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:fd39::/36 origin: AS398437 descr: HSTC ASN mnt-by: MAINT-AS398437 changed: tsnow [at] hotspringsmt.net 20201123 #17:29:29Z source: RADB last-modified: 2023-11-13T16:11:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source