These entries are queried from radb.net using whois, you can try my project getting these.
:AS263004 route: 143.208.228.0/22 descr: ITX-GRUPOG1 origin: AS263004 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180606 #16:48:04Z source: RADB last-modified: 2023-11-13T15:53:46Z rpki-ov-state: valid route: 143.208.228.0/22 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T19:01:50Z rpki-ov-state: valid route: 143.208.228.0/23 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T19:01:50Z rpki-ov-state: valid route: 143.208.228.0/24 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T19:01:50Z rpki-ov-state: valid route: 143.208.229.0/24 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T19:01:50Z rpki-ov-state: valid route: 143.208.230.0/23 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T19:01:50Z rpki-ov-state: valid route: 143.208.230.0/24 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T19:01:50Z rpki-ov-state: valid route: 143.208.231.0/24 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T19:01:50Z rpki-ov-state: valid route: 186.237.16.0/21 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.16.0/21 origin: AS263004 descr: This is a Commcorp Telecom customer proxy route object that was created because no existing route object with the same origin was found. Please contact noc [at] commcorp.com.br if you have any questions regarding this object. mnt-by: MAINT-AS14840 changed: fpgosch [at] commcorp.com.br 20200322 #15:25:43Z source: RADB last-modified: 2023-11-13T16:00:16Z rpki-ov-state: valid route: 186.237.16.0/22 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.16.0/23 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.16.0/24 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.17.0/24 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.18.0/23 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.18.0/24 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.19.0/24 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.20.0/22 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.20.0/23 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.20.0/24 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.21.0/24 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.22.0/23 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.22.0/24 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route: 186.237.23.0/24 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T18:53:42Z rpki-ov-state: valid route6: 2804:2be4::/32 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T19:13:18Z rpki-ov-state: valid route6: 2804:2be4::/32 origin: AS263004 descr: This is a Commcorp Telecom customer proxy route object that was created because no existing route object with the same origin was found. Please contact noc [at] commcorp.com.br if you have any questions regarding this object. mnt-by: MAINT-AS14840 changed: fpgosch [at] commcorp.com.br 20200322 #05:32:22Z source: RADB last-modified: 2023-11-13T16:00:16Z rpki-ov-state: valid route6: 2804:2be4::/33 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T19:13:18Z rpki-ov-state: valid route6: 2804:2be4:8000::/33 descr: CZNET TELECOM origin: AS263004 notify: caetano.morlin [at] cznet.net.br mnt-by: MAINT-AS263004 changed: caetano.morlin [at] cznet.net.br 20211116 source: TC last-modified: 2021-11-16T19:13:18Z rpki-ov-state: valid