These entries are queried from radb.net using whois, you can try my project getting these.
:AS393802 route: 38.135.93.0/24 origin: AS393802 descr: Route Registered for Cogent Communications Customer - Carahsoft Technology Corp mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20200624 #18:44:49Z source: RADB last-modified: 2023-11-13T16:01:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.88.16.0/24 origin: AS393802 mnt-by: MNT-CTC-225 descr: 11493 Sunset Hills Road Suite 100 Reston VA 20190 United States tech-c: MOORE436-ARIN admin-c: MOORE436-ARIN source: ARIN created: 2020-06-22T20:05:54Z last-modified: 2020-06-22T20:05:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.88.16.0/24 descr: Proxy fbo 2pifi Inc (AS393802) origin: AS393802 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: Charlie.Young [at] windstream.com 20180717 source: RADB last-modified: 2023-11-13T15:54:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:3e:a000::/48 origin: AS393802 mnt-by: MNT-CTC-225 descr: 11493 Sunset Hills Road Suite 100 Reston VA 20190 United States tech-c: MOORE436-ARIN admin-c: MOORE436-ARIN source: ARIN created: 2020-06-22T20:06:26Z last-modified: 2020-06-22T20:06:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source