These entries are queried from radb.net using whois, you can try my project getting these.
:AS398883 route: 44.90.16.0/24 descr: Vultr Customer Route origin: AS398883 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20201027 #18:55:54Z source: RADB last-modified: 2023-11-13T16:02:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 44.90.16.0/24 descr: MIDnet customer route proxy registration origin: AS398883 notify: ipadmin [at] mid.net notify: arin-aad [at] duey.biz mnt-by: MAINT-MIDNET changed: adam.korab [at] mid.net 20230518 source: NTTCOM last-modified: 2023-05-18T19:20:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.64.112.0/24 descr: Vultr Customer Route origin: AS398883 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20221116 #00:37:31-18000 source: RADB last-modified: 2023-11-13T16:13:08Z rpki-ov-state: valid route: 69.64.112.0/24 origin: AS398883 descr: Duey's Computer Service, Inc. 3701 O St Suite B2 Lincoln NE 68510 United States admin-c: DUEYA-ARIN tech-c: DUEYA-ARIN tech-c: IPADM835-ARIN mnt-by: MNT-DCS-316 created: 2020-10-21T17:29:00Z last-modified: 2021-11-17T17:46:20Z source: ARIN rpki-ov-state: valid route6: 2602:808:3000::/44 descr: Vultr Customer Route origin: AS398883 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20221202 #00:40:39-18000 source: RADB last-modified: 2023-11-13T16:13:11Z rpki-ov-state: valid route6: 2602:808:3000::/44 origin: AS398883 descr: 3701 O St Suite B2 Lincoln NE 68510 United States admin-c: DUEYA-ARIN tech-c: DUEYA-ARIN tech-c: IPADM835-ARIN mnt-by: MNT-DCS-316 created: 2020-10-29T05:45:41Z last-modified: 2021-11-17T17:46:20Z source: ARIN rpki-ov-state: valid