These entries are queried from radb.net using whois, you can try my project getting these.
:AS53101 route: 177.107.208.0/21 descr: CLARO S.A. Customer origin: AS53101 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20240318 source: RADB last-modified: 2024-03-18T20:30:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.107.208.0/22 descr: CLARO S.A. Customer origin: AS53101 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200221 source: RADB last-modified: 2023-11-13T15:59:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.107.208.0/24 descr: CLARO S.A. Customer origin: AS53101 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190509 source: RADB last-modified: 2023-11-13T15:56:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.144.0/20 descr: SIANET Datacenter e Provedores LtdaME origin: AS53101 mnt-by: MAINT-AS53101 notify: TC-HM-MNT changed: suporte [at] sianet.com.br 20101014 remarks: Thu Oct 14 09:07:09 BRT 2010 source: TC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.144.0/20 descr: Diveo Telecom Customer Proxy Route origin: AS53101 notify: jtoni [at] diveo.net.br mnt-by: DIVEO-MNT changed: jtoni [at] diveo.net.br 20091230 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.144.0/20 descr: CLARO S.A. Customer origin: AS53101 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190507 source: RADB last-modified: 2023-11-13T15:56:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.144.0/24 descr: SIANET Datacenter e Provedores LtdaME origin: AS53101 mnt-by: MAINT-AS53101 notify: TC-HM-MNT changed: suporte [at] sianet.com.br 20101014 remarks: Thu Oct 14 09:07:09 BRT 2010 source: TC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.144.0/24 descr: CLARO S.A. Customer origin: AS53101 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190509 source: RADB last-modified: 2023-11-13T15:56:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.145.0/24 descr: CLARO S.A. Customer origin: AS53101 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190509 source: RADB last-modified: 2023-11-13T15:56:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.145.0/24 descr: SIANET Datacenter e Provedores LtdaME origin: AS53101 mnt-by: MAINT-AS53101 notify: TC-HM-MNT changed: suporte [at] sianet.com.br 20101014 remarks: Thu Oct 14 09:07:09 BRT 2010 source: TC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.146.0/24 descr: CLARO S.A. Customer origin: AS53101 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190509 source: RADB last-modified: 2023-11-13T15:56:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.146.0/24 descr: SIANET Datacenter e Provedores LtdaME origin: AS53101 mnt-by: MAINT-AS53101 notify: TC-HM-MNT changed: suporte [at] sianet.com.br 20101014 remarks: Thu Oct 14 09:07:09 BRT 2010 source: TC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.147.0/24 descr: SIANET Datacenter e Provedores LtdaME origin: AS53101 mnt-by: MAINT-AS53101 notify: TC-HM-MNT changed: suporte [at] sianet.com.br 20101014 remarks: Thu Oct 14 09:07:09 BRT 2010 source: TC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.147.0/24 descr: CLARO S.A. Customer origin: AS53101 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190509 source: RADB last-modified: 2023-11-13T15:56:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.148.0/24 descr: CLARO S.A. Customer origin: AS53101 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190509 source: RADB last-modified: 2023-11-13T15:56:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.149.0/24 descr: SIANET Datacenter e Provedores LtdaME origin: AS53101 mnt-by: MAINT-AS53101 notify: TC-HM-MNT changed: suporte [at] sianet.com.br 20101014 remarks: Thu Oct 14 09:07:09 BRT 2010 source: TC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.149.0/24 descr: CLARO S.A. Customer origin: AS53101 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190509 source: RADB last-modified: 2023-11-13T15:56:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.150.0/24 descr: SIANET Datacenter e Provedores LtdaME origin: AS53101 mnt-by: MAINT-AS53101 notify: TC-HM-MNT changed: suporte [at] sianet.com.br 20101014 remarks: Thu Oct 14 09:07:09 BRT 2010 source: TC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.152.0/24 descr: CLARO S.A. Customer origin: AS53101 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190509 source: RADB last-modified: 2023-11-13T15:56:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.156.0/24 descr: CLARO S.A. Customer origin: AS53101 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190509 source: RADB last-modified: 2023-11-13T15:56:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.103.159.0/24 descr: CLARO S.A. Customer origin: AS53101 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190509 source: RADB last-modified: 2023-11-13T15:56:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source