These entries are queried from radb.net using whois, you can try my project getting these.
:AS268297 route: 45.237.248.0/22 descr: SPEED origin: AS268297 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS268297 changed: noc [at] lvnetwork.com.br 20231207 #14:41:00Z source: TC last-modified: 2023-12-07T17:41:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.237.248.0/22 origin: AS268297 descr: Customer American Tower mnt-by: MAINT-AS23106 changed: bgp.fibra [at] americantower.com 20200109 #20:15:51Z source: RADB last-modified: 2023-11-13T16:11:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.237.248.0/23 descr: SPEED origin: AS268297 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS268297 changed: noc [at] lvnetwork.com.br 20231207 #14:41:00Z source: TC last-modified: 2023-12-07T17:41:22Z rpki-ov-state: valid route: 45.237.248.0/24 descr: SPEED origin: AS268297 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS268297 changed: noc [at] lvnetwork.com.br 20231207 #14:41:00Z source: TC last-modified: 2023-12-07T17:41:22Z rpki-ov-state: valid route: 45.237.249.0/24 descr: SPEED origin: AS268297 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS268297 changed: noc [at] lvnetwork.com.br 20231207 #14:41:00Z source: TC last-modified: 2023-12-07T17:41:22Z rpki-ov-state: valid route: 45.237.249.0/24 descr: CLARO S.A. Customer origin: AS268297 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20211116 source: RADB last-modified: 2023-11-13T16:08:40Z rpki-ov-state: valid route: 45.237.250.0/23 descr: SPEED origin: AS268297 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS268297 changed: noc [at] lvnetwork.com.br 20231207 #14:41:00Z source: TC last-modified: 2023-12-07T17:41:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.237.250.0/24 descr: SPEED origin: AS268297 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS268297 changed: noc [at] lvnetwork.com.br 20231207 #14:41:00Z source: TC last-modified: 2023-12-07T17:41:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.237.250.0/24 descr: CLARO S.A. Customer origin: AS268297 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20211116 source: RADB last-modified: 2023-11-13T16:08:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.237.251.0/24 descr: SPEED origin: AS268297 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS268297 changed: noc [at] lvnetwork.com.br 20231207 #14:41:00Z source: TC last-modified: 2023-12-07T17:41:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:4f00::/32 descr: SPEED origin: AS268297 notify: noc [at] lvnetwork.com.br mnt-by: MAINT-AS268297 changed: noc [at] lvnetwork.com.br 20231207 #14:41:00Z source: TC last-modified: 2023-12-07T17:41:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:4f00::/32 descr: PROXY FOR OPENX CUSTOMER origin: AS268297 mnt-by: MAINT-AS263444 notify: registro [at] openx.com.br changed: registro [at] openx.com.br 20210719 remarks: Mon Jul 19 18:19:12 2021 source: RADB last-modified: 2023-11-13T16:07:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source