These entries are queried from radb.net using whois, you can try my project getting these.
:AS62810 route: 137.141.0.0/16 descr: SUNY College at Oneonta origin: AS62810 mnt-by: MAINT-TVC changed: dan [at] firstlight.net 20170829 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 137.141.0.0/16 origin: AS62810 descr: Proxy registration for SUNY Oneonta admin-c: Jim Kyriannis tech-c: NYSERNet NOC remarks: This is a proxy registration by NYSERNet on behalf of one of our member campuses. For changes or removal, contact noc [at] nysernet.org notify: noc [at] nysernet.org mnt-by: MAINT-AS3754 changed: jkyriannis [at] nysernet.org 20210217 #21:55:32Z source: RADB last-modified: 2023-11-13T16:03:38Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2605:ab40::/32 origin: AS62810 mnt-by: MNT-SCAO descr: Ravine Parkway Oneonta NY 13820 United States tech-c: RRG1-ARIN admin-c: LBI31-ARIN source: ARIN created: 2020-08-19T12:14:19Z last-modified: 2020-08-19T12:14:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2605:ab40::/32 origin: AS62810 descr: Proxy registration for SUNY Oneonta admin-c: Jim Kyriannis tech-c: NYSERNet NOC remarks: This is a proxy registration by NYSERNet on behalf of one of our member campuses. For changes or removal, contact noc [at] nysernet.org notify: noc [at] nysernet.org notify: nwkmgr [at] oneonta.edu mnt-by: MAINT-AS3754 changed: jkyriannis [at] nysernet.org 20200824 #21:29:17Z source: RADB last-modified: 2023-11-13T16:01:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source