These entries are queried from radb.net using whois, you can try my project getting these.
:AS273355 route: 38.183.120.0/22 origin: AS273355 descr: Route Registered for Cogent Communications Customer System Computadores LTDA member-of: AS273355:RS-ROUTES geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-MG geoidx: Joao Pinheiro notify: noc [at] meganetdhjp.com.br mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20231208 # 1732Z source: RADB last-modified: 2023-12-08T17:32:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.183.120.0/24 origin: AS273355 descr: Route Registered for Cogent Communications Customer - System Computadores LTDA member-of: AS273355:RS-ROUTES geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-MG geoidx: Joao Pinheiro notify: noc [at] meganetdhjp.com.br mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com source: RADB last-modified: 2023-12-08T17:39:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.183.121.0/24 origin: AS273355 descr: Route Registered for Cogent Communications Customer - System Computadores LTDA member-of: AS273355:RS-ROUTES geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-MG geoidx: Joao Pinheiro notify: noc [at] meganetdhjp.com.br mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com source: RADB last-modified: 2023-12-08T17:39:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.183.122.0/24 origin: AS273355 descr: Route Registered for Cogent Communications Customer - System Computadores LTDA geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-MG geoidx: Joao Pinheiro notify: noc [at] meganetdhjp.com.br mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20231214 # 0848Z source: RADB last-modified: 2023-12-14T08:48:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.183.123.0/24 origin: AS273355 descr: Route Registered for Cogent Communications Customer - System Computadores LTDA member-of: AS273355:RS-ROUTES geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-MG geoidx: Joao Pinheiro notify: noc [at] meganetdhjp.com.br mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com source: RADB last-modified: 2023-12-08T17:39:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.183.124.0/24 origin: AS273355 descr: Route Registered for Cogent Communications Customer - System Computadores LTDA member-of: AS273355:RS-ROUTES geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-MG geoidx: Joao Pinheiro notify: noc [at] meganetdhjp.com.br mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com source: RADB last-modified: 2023-12-08T17:39:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:8d68::/32 descr: System Computadores LTDA origin: AS273355 member-of: AS273355:RS-ROUTES notify: noc [at] meganetdhjp.com.br geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-MG geoidx: Joao Pinheiro mnt-by: MAINT-AS273355 changed: fernando.werner [at] hotmail.com 20231218 source: TC last-modified: 2023-12-18T15:11:40Z rpki-ov-state: valid