These entries are queried from radb.net using whois, you can try my project getting these.
:AS17146 route: 162.254.80.0/22 descr: American Registry for Internet Numbers descr: PO Box 232290 descr: Centreville, VA 20120 descr: US origin: AS17146 mnt-by: MNT-MS-514 changed: support [at] mgbsys.com 20191203 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.254.80.0/24 descr: American Registry for Internet Numbers descr: �PO Box 232290 descr: �Centreville, VA 20120 descr: �US origin: AS17146 mnt-by: MNT-MS-514 changed: support [at] mgbsys.com 20191203 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.254.81.0/24 descr: American Registry for Internet Numbers descr: �PO Box 232290 descr: �Centreville, VA 20120 descr: �US origin: AS17146 mnt-by: MNT-MS-514 changed: support [at] mgbsys.com 20191203 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.254.82.0/24 descr: American Registry for Internet Numbers descr: �PO Box 232290 descr: �Centreville, VA 20120 descr: �US origin: AS17146 mnt-by: MNT-MS-514 changed: support [at] mgbsys.com 20191203 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.254.83.0/24 descr: American Registry for Internet Numbers descr: �PO Box 232290 descr: �Centreville, VA 20120 descr: �US origin: AS17146 mnt-by: MNT-MS-514 changed: support [at] mgbsys.com 20191203 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source