These entries are queried from radb.net using whois, you can try my project getting these.
:AS22887 route: 143.43.128.0/17 origin: AS22887 mnt-by: MNT-WILU descr: Western Illinois University tech-c: HOSTM391-ARIN tech-c: RERIC43-ARIN admin-c: HOSTM391-ARIN source: ARIN created: 2020-09-18T11:02:28Z last-modified: 2020-09-18T11:02:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.43.128.0/18 origin: AS22887 mnt-by: MNT-WILU descr: Western Illinois University tech-c: HOSTM391-ARIN tech-c: RERIC43-ARIN admin-c: HOSTM391-ARIN source: ARIN created: 2020-09-18T11:03:49Z last-modified: 2020-09-18T11:03:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.43.184.0/21 origin: AS22887 mnt-by: MNT-WILU descr: Western Illinois University tech-c: HOSTM391-ARIN tech-c: RERIC43-ARIN admin-c: HOSTM391-ARIN source: ARIN created: 2020-09-18T11:08:08Z last-modified: 2020-09-18T11:08:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.43.192.0/18 origin: AS22887 mnt-by: MNT-WILU descr: Western Illinois University tech-c: HOSTM391-ARIN tech-c: RERIC43-ARIN admin-c: HOSTM391-ARIN source: ARIN created: 2020-09-18T11:04:37Z last-modified: 2020-09-18T11:04:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.43.255.0/24 origin: AS22887 mnt-by: MNT-WILU descr: Western Illinois University tech-c: HOSTM391-ARIN tech-c: RERIC43-ARIN admin-c: HOSTM391-ARIN source: ARIN created: 2020-09-18T11:09:01Z last-modified: 2020-09-18T11:09:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.246.160.0/19 origin: AS22887 mnt-by: MNT-WILU descr: Western Illinois University tech-c: HOSTM391-ARIN tech-c: RERIC43-ARIN admin-c: HOSTM391-ARIN source: ARIN created: 2020-09-18T11:05:43Z last-modified: 2020-09-18T11:05:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.246.160.0/20 origin: AS22887 mnt-by: MNT-WILU descr: Western Illinois University tech-c: HOSTM391-ARIN tech-c: RERIC43-ARIN admin-c: HOSTM391-ARIN source: ARIN created: 2020-09-18T11:06:23Z last-modified: 2020-09-18T11:06:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.246.176.0/20 origin: AS22887 mnt-by: MNT-WILU descr: Western Illinois University tech-c: HOSTM391-ARIN tech-c: RERIC43-ARIN admin-c: HOSTM391-ARIN source: ARIN created: 2020-09-18T11:07:11Z last-modified: 2020-09-18T11:07:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:139:8000::/40 origin: AS22887 mnt-by: MNT-WILU descr: Western Illinois University tech-c: HOSTM391-ARIN tech-c: RERIC43-ARIN admin-c: HOSTM391-ARIN source: ARIN created: 2020-09-18T11:11:05Z last-modified: 2020-09-18T11:11:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source