These entries are queried from radb.net using whois, you can try my project getting these.
:AS270815 route: 200.229.244.0/22 origin: AS270815 descr: Century Telecom Customer admin-c: DCT38 tech-c: PRD72 mnt-by: MAINT-AS21574 changed: engenharia [at] century.net.br 20220329 #13:47:32Z source: RADB last-modified: 2023-11-13T16:10:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.229.244.0/22 descr: NC1 ProverNet origin: AS270815 member-of: AS270815:RS-ROUTES notify: milton [at] provernet.com.br geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-MG geoidx: Belo Horizonte mnt-by: MAINT-AS270815 changed: milton [at] provernet.com.br 20230627 source: TC last-modified: 2023-06-27T18:42:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.229.244.0/24 descr: CLARO S.A. Customer origin: AS270815 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220728 source: RADB last-modified: 2023-11-13T16:11:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.229.244.0/24 descr: NC1 ProverNet origin: AS270815 member-of: AS270815:RS-ROUTES notify: milton [at] provernet.com.br geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-MG geoidx: Belo Horizonte mnt-by: MAINT-AS270815 changed: milton [at] provernet.com.br 20230627 source: TC last-modified: 2023-06-27T18:39:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.229.245.0/24 descr: CLARO S.A. Customer origin: AS270815 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220831 source: RADB last-modified: 2023-11-13T16:12:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.229.245.0/24 descr: NC1 ProverNet origin: AS270815 member-of: AS270815:RS-ROUTES notify: milton [at] provernet.com.br geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-MG geoidx: Belo Horizonte mnt-by: MAINT-AS270815 changed: milton [at] provernet.com.br 20230627 source: TC last-modified: 2023-06-27T18:39:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.229.246.0/24 descr: NC1 ProverNet origin: AS270815 member-of: AS270815:RS-ROUTES notify: milton [at] provernet.com.br geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-MG geoidx: Belo Horizonte mnt-by: MAINT-AS270815 changed: milton [at] provernet.com.br 20230627 source: TC last-modified: 2023-06-27T18:39:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.229.247.0/24 descr: NC1 ProverNet origin: AS270815 member-of: AS270815:RS-ROUTES notify: milton [at] provernet.com.br geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-MG geoidx: Belo Horizonte mnt-by: MAINT-AS270815 changed: milton [at] provernet.com.br 20230627 source: TC last-modified: 2023-06-27T18:39:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.229.247.0/24 descr: CLARO S.A. Customer origin: AS270815 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 route6: 2804:71d8::/32 descr: NC1 ProverNet origin: AS270815 member-of: AS270815:RS-ROUTES notify: milton [at] provernet.com.br geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-MG geoidx: Belo Horizonte mnt-by: MAINT-AS270815 changed: milton [at] provernet.com.br 20230627 source: TC last-modified: 2023-06-27T18:44:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:71d8::/32 origin: AS270815 descr: MVX-NC1_PROVERNET remarks: This route object was created by Mundivox because there was no object for this prefix, so our peers filters would reject this route. In case of questions, please mail to engenhariaip [at] mundivox.com mnt-by: MAINT-AS17222 changed: engenhariaip [at] mundivox.com 20200615 #17:55:49Z source: RADB last-modified: 2023-11-13T16:00:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source