These entries are queried from radb.net using whois, you can try my project getting these.
:AS16604 route: 38.22.208.0/21 origin: AS16604 descr: Route Registered for Cogent Communications Customer- American Broadband, LLC geoidx: US mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20230911 source: RADB last-modified: 2023-11-13T16:18:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.45.192.0/21 origin: AS16604 descr: Route Registered for Cogent Communications Customer- American Broadband, LLC geoidx: US mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20230911 source: RADB last-modified: 2023-11-13T16:18:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.241.160.0/19 descr: American Broadband descr: 1605 Washington St descr: PO Box 400 descr: Blair, NE 68008 descr: US origin: AS16604 mnt-by: MNT-HNET changed: mstarzyk [at] americanbb.com 20200217 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.222.192.0/20 descr: American Broadband descr: 1605 Washington St descr: PO Box 400 descr: Blair, NE 68008 descr: US origin: AS16604 mnt-by: MNT-HNET changed: mstarzyk [at] americanbb.com 20200217 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.27.124.0/22 descr: American Broadband descr: 1605 Washington St descr: PO Box 400 descr: Blair, NE 68008 descr: US origin: AS16604 mnt-by: MNT-HNET changed: mstarzyk [at] americanbb.com 20200217 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.74.224.0/20 descr: American Broadband descr: 1605 Washington St descr: PO Box 400 descr: Blair, NE 68008 descr: US origin: AS16604 mnt-by: MNT-HNET changed: mstarzyk [at] americanbb.com 20200217 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.74.227.0/24 origin: AS16604 descr: American Broadband 1605 Washington St PO Box 400 Blair NE 68008 United States admin-c: ENGIN278-ARIN tech-c: ENGIN278-ARIN mnt-by: MNT-HNET created: 2023-10-30T17:56:35Z last-modified: 2023-10-30T17:56:35Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.222.176.0/20 descr: American Broadband descr: 1605 Washington St descr: PO Box 400 descr: Blair, NE 68008 descr: US origin: AS16604 mnt-by: MNT-HNET changed: mstarzyk [at] americanbb.com 20200217 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.145.151.0/24 descr: American Broadband descr: 1605 Washington St descr: PO Box 400 descr: Blair, NE 68008 descr: US origin: AS16604 mnt-by: MNT-HNET changed: mstarzyk [at] americanbb.com 20200217 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2606:1900::/32 origin: AS16604 descr: Fastwyre Broadband / American Broadband admin-c: ENGIN278-ARIN tech-c: ENGIN278-ARIN mnt-by: MNT-HNET created: 2023-04-02T20:40:29Z last-modified: 2023-05-15T15:16:18Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source