These entries are queried from radb.net using whois, you can try my project getting these.
:AS399747 route: 23.181.144.0/24 origin: AS399747 descr: AMSPv4 Global Anycast Network member-of: RS-AMSP-NET admin-c: MCDAN240-ARIN tech-c: MCDAN240-ARIN mnt-by: MNT-AMSP-3 created: 2021-06-09T13:08:27Z last-modified: 2021-06-09T17:54:43Z source: ARIN rpki-ov-state: valid route: 23.181.144.0/24 descr: Vultr Customer Route origin: AS399747 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20221116 #00:37:33-18000 source: RADB last-modified: 2023-11-13T16:13:08Z rpki-ov-state: valid route6: 2602:fc6a::/36 descr: Vultr Customer Route origin: AS399747 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20221202 #00:40:40-18000 source: RADB last-modified: 2023-11-13T16:13:11Z rpki-ov-state: valid route6: 2602:fc6a::/36 origin: AS399747 descr: AMSPv6 Global Anycast Network member-of: RS-AMSP-NET admin-c: MCDAN240-ARIN tech-c: MCDAN240-ARIN mnt-by: MNT-AMSP-3 created: 2021-06-06T15:29:15Z last-modified: 2021-06-09T17:53:15Z source: ARIN rpki-ov-state: valid route6: 2602:fc6a::/48 origin: AS399747 descr: AMSPv6 Global Anycast Prefix member-of: RS-AMSP-NET admin-c: MCDAN240-ARIN tech-c: MCDAN240-ARIN mnt-by: MNT-AMSP-3 created: 2021-06-09T13:34:03Z last-modified: 2021-06-09T17:53:39Z source: ARIN rpki-ov-state: valid route6: 2602:fc6a:100::/48 origin: AS399747 descr: AMSPv6 Regional Anycast Prefix member-of: RS-AMSP-NET admin-c: MCDAN240-ARIN tech-c: MCDAN240-ARIN mnt-by: MNT-AMSP-3 created: 2021-06-09T13:34:41Z last-modified: 2021-06-09T17:53:47Z source: ARIN rpki-ov-state: valid route6: 2602:fc6a:130::/48 origin: AS399747 descr: AMSPv6 Regional Anycast Prefix member-of: RS-AMSP-NET admin-c: MCDAN240-ARIN tech-c: MCDAN240-ARIN mnt-by: MNT-AMSP-3 created: 2021-06-09T13:38:38Z last-modified: 2021-06-09T17:53:59Z source: ARIN rpki-ov-state: valid route6: 2602:fc6a:140::/48 origin: AS399747 descr: AMSPv6 Regional Anycast Prefix member-of: RS-AMSP-NET admin-c: MCDAN240-ARIN tech-c: MCDAN240-ARIN mnt-by: MNT-AMSP-3 created: 2021-06-09T13:38:57Z last-modified: 2021-06-09T17:54:09Z source: ARIN rpki-ov-state: valid route6: 2602:fc6a:200::/48 origin: AS399747 descr: AMSPv6 Regional Anycast Prefix member-of: RS-AMSP-NET admin-c: MCDAN240-ARIN tech-c: MCDAN240-ARIN mnt-by: MNT-AMSP-3 created: 2021-06-09T13:39:18Z last-modified: 2021-06-09T17:54:23Z source: ARIN rpki-ov-state: valid route6: 2602:fc6a:210::/48 origin: AS399747 descr: AMSPv6 Regional Anycast Prefix member-of: RS-AMSP-NET admin-c: MCDAN240-ARIN tech-c: MCDAN240-ARIN mnt-by: MNT-AMSP-3 created: 2021-06-09T13:39:32Z last-modified: 2021-06-09T17:54:31Z source: ARIN rpki-ov-state: valid route6: 2602:fc6a:300::/48 origin: AS399747 descr: AMSPv6 Regional Anycast Prefix member-of: RS-AMSP-NET admin-c: MCDAN240-ARIN tech-c: MCDAN240-ARIN mnt-by: MNT-AMSP-3 created: 2021-06-24T17:22:10Z last-modified: 2021-06-24T17:22:10Z source: ARIN rpki-ov-state: valid route6: 2602:fc6a:310::/48 origin: AS399747 descr: AMSPv6 Regional Anycast Prefix member-of: RS-AMSP-NET admin-c: MCDAN240-ARIN tech-c: MCDAN240-ARIN mnt-by: MNT-AMSP-3 created: 2021-06-24T17:23:46Z last-modified: 2021-06-24T17:23:46Z source: ARIN rpki-ov-state: valid