These entries are queried from radb.net using whois, you can try my project getting these.
:AS21756 route: 64.76.17.0/24 descr: AS21756 proxy-registered route by Cogent origin: AS21756 remarks: Proxy-registered route object remarks: for Cogent customer notify: neteng [at] cogentco.com mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20031230 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.1.117.0/24 origin: AS21756 descr: Globenet Customer - Metrotel - SIDERCA S.A.I.C mnt-by: MAINT-AS52320 changed: leonardo.almeida [at] globenet.net 20210309 #15:04:07Z source: RADB last-modified: 2023-11-13T16:05:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.9.229.0/24 origin: AS21756 descr: Globenet Customer - Metrotel - SIDERCA S.A.I.C mnt-by: MAINT-AS52320 changed: leonardo.almeida [at] globenet.net 20210309 #15:45:06Z source: RADB last-modified: 2023-11-13T16:05:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.69.130.0/24 origin: AS21756 descr: SIDERCA S.A.I.C. member-of: RS-AS21756-SIDERCA mnt-by: MAINT-AS11664 changed: ing.clientes [at] claro.com.ar 20220725 #15:40:48Z source: RADB last-modified: 2023-11-13T16:11:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.80.222.0/24 origin: AS21756 descr: Globenet Customer - Metrotel - SIDERCA S.A.I.C mnt-by: MAINT-AS52320 changed: leonardo.almeida [at] globenet.net 20210309 #15:45:42Z source: RADB last-modified: 2023-11-13T16:05:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 201.234.38.0/24 descr: This route object is for a IFX Networks customer route which is being exported under this origin AS 21756 origin: AS21756 mnt-by: MAINT-AS18747 changed: noc [at] ifxcorp.com 20131211 #18:37:09Z source: RADB last-modified: 2023-11-13T16:18:57Z rpki-ov-state: valid route: 201.234.38.0/24 descr: LACNIC generated route for IMPSAT FIBER NETWORKS INC origin: AS21756 remarks: LACNIC generated route for IMPSAT FIBER NETWORKS INC remarks: maxLength 24 mnt-by: MNT-AR-IMCO13-LACNIC changed: 20240305 source: LACNIC remarks: *************************************************** remarks: This object may have been modified remarks: For more information, please query whois.lacnic.net remarks: *************************************************** last-modified: 2024-03-05T22:15:05Z rpki-ov-state: valid route6: 2801:188::/40 origin: AS21756 descr: Globenet Customer - Metrotel - SIDERCA S.A.I.C mnt-by: MAINT-AS52320 changed: leonardo.almeida [at] globenet.net 20210309 #15:46:46Z source: RADB last-modified: 2023-11-13T16:05:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source