These entries are queried from radb.net using whois, you can try my project getting these.
:AS263504 route: 132.255.188.0/22 origin: AS263504 descr: PROXY FOR OUR CUSTOMER CONE mnt-by: MAINT-AS53102 changed: diogo.moraes [at] sitel.com.br 20220413 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 132.255.188.0/22 descr: SAMM origin: AS263504 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20181221 #18:27:19Z source: RADB last-modified: 2023-11-13T15:55:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.243.92.0/22 origin: AS263504 descr: PROXY FOR OUR CUSTOMER CONE mnt-by: MAINT-AS53102 changed: diogo.moraes [at] sitel.com.br 20220413 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.243.92.0/22 descr: SAMM origin: AS263504 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20181221 #18:27:19Z source: RADB last-modified: 2023-11-13T15:55:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:12ec::/32 descr: ITX-SAMM origin: AS263504 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180509 #14:51:22Z source: RADB last-modified: 2023-11-13T15:53:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:12ec::/32 origin: AS263504 descr: PROXY FOR OUR CUSTOMER CONE mnt-by: MAINT-AS53102 changed: diogo.moraes [at] sitel.com.br 20220413 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source