These entries are queried from radb.net using whois, you can try my project getting these.
:AS13636 route: 128.191.0.0/16 descr: Route object for NEC tech-c: DFE1-LEVEL3 origin: AS13636 mnt-by: NEC1-MNT changed: guillermo.munguia [at] level3.com 20050624 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.101.0.0/16 origin: AS13636 descr: NEC Corporation of America 3929 W John Carpenter Fwy Irving TX 75063-2909 United States admin-c: KRUEG34-ARIN tech-c: IPADM267-ARIN mnt-by: MNT-NCA-98-Z created: 2021-04-10T02:05:41Z last-modified: 2021-04-10T02:05:41Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.101.0.0/16 descr: NEC Corporation of America origin: AS13636 mnt-by: MAINT-AS13636 changed: jon.krueger [at] necam.com 20160108 #23:56:36Z source: RADB last-modified: 2023-11-13T15:48:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.101.0.0/16 descr: Route object for NEC tech-c: DFE1-LEVEL3 origin: AS13636 mnt-by: NEC1-MNT changed: susannah.strellis [at] level3.com 20041230 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.102.0.0/16 descr: Route block for NEC origin: AS13636 mnt-by: NEC1-MNT changed: susannah.strellis [at] level3.com 20041230 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.102.0.0/16 origin: AS13636 descr: NEC Corporation of America 3929 W John Carpenter Fwy Irving TX 75063-2909 United States admin-c: KRUEG34-ARIN tech-c: IPADM267-ARIN mnt-by: MNT-NCA-98-Z created: 2021-04-10T02:06:17Z last-modified: 2021-04-10T02:06:17Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.102.0.0/16 descr: NEC Corporation of America origin: AS13636 mnt-by: MAINT-AS13636 changed: jon.krueger [at] necam.com 20160108 #23:57:25Z source: RADB last-modified: 2023-11-13T15:48:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.103.0.0/16 descr: NEC Corporation of America origin: AS13636 mnt-by: MAINT-AS13636 changed: jon.krueger [at] necam.com 20160108 #23:58:06Z source: RADB last-modified: 2023-11-13T15:48:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source