These entries are queried from radb.net using whois, you can try my project getting these.
:AS52772 route: 177.39.156.0/22 descr: SJNET-TELECOM origin: AS52772 mnt-by: MAINT-AS52772 changed: renan [at] sjnetwork.com.br 20200901 source: ALTDB rpki-ov-state: valid route: 177.39.156.0/23 descr: SJNET-TELECOM origin: AS52772 mnt-by: MAINT-AS52772 changed: renan [at] sjnetwork.com.br 20200913 source: ALTDB rpki-ov-state: valid route: 177.39.156.0/24 descr: SJNET-TELECOM origin: AS52772 mnt-by: MAINT-AS52772 changed: renan [at] sjnetwork.com.br 20200913 source: ALTDB rpki-ov-state: valid route: 177.39.157.0/24 descr: SJNET-TELECOM origin: AS52772 mnt-by: MAINT-AS52772 changed: renan [at] sjnetwork.com.br 20200913 source: ALTDB rpki-ov-state: valid route: 177.39.158.0/23 descr: SJNET-TELECOM origin: AS52772 mnt-by: MAINT-AS52772 changed: renan [at] sjnetwork.com.br 20200913 source: ALTDB rpki-ov-state: valid route: 177.39.158.0/24 descr: SJNET-TELECOM origin: AS52772 mnt-by: MAINT-AS52772 changed: renan [at] sjnetwork.com.br 20200913 source: ALTDB rpki-ov-state: valid route: 177.39.159.0/24 descr: SJNET-TELECOM origin: AS52772 mnt-by: MAINT-AS52772 changed: renan [at] sjnetwork.com.br 20200913 source: ALTDB rpki-ov-state: valid route6: 2804:259c::/32 origin: AS52772 descr: CUSTOM-LINKFULL mnt-by: MAINT-AS263047 changed: juliard [at] linkfull.com.br 20220218 #15:13:28Z source: RADB last-modified: 2023-11-13T16:09:24Z rpki-ov-state: valid route6: 2804:259c::/32 descr: SJNET-TELECOM origin: AS52772 mnt-by: MAINT-AS52772 changed: renan [at] sjnetwork.com.br 20200901 source: ALTDB rpki-ov-state: valid route6: 2804:259c::/33 descr: SJNET-TELECOM origin: AS52772 mnt-by: MAINT-AS52772 changed: renan [at] sjnetwork.com.br 20200913 source: ALTDB rpki-ov-state: valid route6: 2804:259c:100::/40 descr: SJNET-TELECOM origin: AS52772 mnt-by: MAINT-AS52772 changed: renan [at] sjnetwork.com.br 20230817 source: ALTDB rpki-ov-state: valid route6: 2804:259c:8000::/34 descr: SJNET-TELECOM origin: AS52772 mnt-by: MAINT-AS52772 changed: renan [at] sjnetwork.com.br 20210604 source: ALTDB rpki-ov-state: valid route6: 2804:259c:aa00::/40 descr: SJNET-TELECOM origin: AS52772 mnt-by: MAINT-AS52772 changed: renan [at] sjnetwork.com.br 20220125 source: ALTDB rpki-ov-state: valid route6: 2804:259c:ba00::/40 descr: SJNET-TELECOM origin: AS52772 mnt-by: MAINT-AS52772 changed: renan [at] sjnetwork.com.br 20220125 source: ALTDB rpki-ov-state: valid