These entries are queried from radb.net using whois, you can try my project getting these.
:AS36685 route: 192.31.128.0/20 descr: DATACENTER MGMT SYSTEMS origin: AS36685 mnt-by: MAINT-AS29863 changed: ip-addr [at] data393.net 20121224 #14:29:56Z source: RADB last-modified: 2023-11-13T15:44:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.19.96.0/22 descr: Datacenter Management Systems origin: AS36685 mnt-by: MAINT-PRYME changed: neteng [at] latisys.com 20111008 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.58.208.0/21 descr: DMS origin: AS36685 mnt-by: MAINT-PRYME changed: neteng [at] latisys.com 20101209 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.83.96.0/22 descr: Datacenter Management Systems origin: AS36685 mnt-by: MAINT-PRYME changed: neteng [at] latisys.com 20111010 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:470:159::/48 origin: AS36685 descr: NET-2001-470-159---48-AS36685 admin-c: ZH17-ARIN tech-c: ZH17-ARIN mnt-by: MNT-HURC source: ARIN created: 2022-01-20T20:22:10Z last-modified: 2022-01-20T20:22:10Z rpki-ov-state: valid route6: 2604:d500::/32 descr: Datacenter Management Services Inc origin: AS36685 mnt-by: MAINT-AS29863 changed: ip-addr [at] data393.net 20120330 #18:18:45Z source: RADB last-modified: 2023-11-13T15:42:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source