These entries are queried from radb.net using whois, you can try my project getting these.
:AS53140 route: 187.120.192.0/20 descr: Bloco de ips cliente "MPC" criado pela equipe Durand do Brazil origin: AS53140 admin-c: Eduardo Fumes Parajo tech-c: Epafras Rezende Schaden mnt-by: MAINT-AS22356 changed: eduardo [at] durand.com.br 20160112 #08:51:43Z source: RADB last-modified: 2023-11-13T15:48:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.192.0/20 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.192.0/21 descr: CLARO S.A. Customer origin: AS53140 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210601 source: RADB last-modified: 2023-11-13T16:05:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.192.0/21 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.192.0/22 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.192.0/23 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.192.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.193.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.194.0/23 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.194.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.195.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.196.0/22 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.196.0/23 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.196.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.197.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.198.0/23 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.198.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.199.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.200.0/21 descr: CLARO S.A. Customer origin: AS53140 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210601 source: RADB last-modified: 2023-11-13T16:05:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.200.0/21 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.200.0/22 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.200.0/23 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.200.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.201.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.202.0/23 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.202.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.203.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.204.0/22 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.204.0/23 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.204.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.205.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.206.0/23 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.206.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.120.207.0/24 descr: MPC INTERNET LTDA origin: AS53140 notify: registrobr [at] mpc.com.br mnt-by: MAINT-AS53140 changed: db-admin [at] bgp.net.br 20210930 source: TC last-modified: 2021-09-30T13:40:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source