These entries are queried from radb.net using whois, you can try my project getting these.
:AS270880 route: 131.161.8.0/22 origin: AS270880 descr: CUSTOMER A G P DA SILVA ME mnt-by: MAINT-AS28598 changed: leandro.santos [at] mobtelecom.com.br 20200702 #11:35:23Z source: RADB last-modified: 2023-11-13T16:12:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.161.8.0/22 descr: GPTELECOM origin: AS270880 notify: giltor.ce [at] hotmail.com geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-CE geoidx: Ceará mnt-by: MAINT-AS270880 changed: giltor.ce [at] hotmail.com 20240217 source: TC last-modified: 2024-02-17T11:34:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.161.8.0/23 descr: GPTELECOM origin: AS270880 notify: giltor.ce [at] hotmail.com geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-CE geoidx: Ceará mnt-by: MAINT-AS270880 changed: giltor.ce [at] hotmail.com 20240217 source: TC last-modified: 2024-02-17T11:34:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.161.8.0/23 descr: CLARO S.A. Customer origin: AS270880 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201106 source: RADB last-modified: 2023-11-13T16:02:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.161.10.0/23 descr: CLARO S.A. Customer origin: AS270880 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201106 source: RADB last-modified: 2023-11-13T16:02:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.161.10.0/23 descr: GPTELECOM origin: AS270880 notify: giltor.ce [at] hotmail.com geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-CE geoidx: Ceará mnt-by: MAINT-AS270880 changed: giltor.ce [at] hotmail.com 20240217 source: TC last-modified: 2024-02-17T11:34:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.161.11.0/24 descr: CLARO S.A. Customer origin: AS270880 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201106 source: RADB last-modified: 2023-11-13T16:02:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:72dc::/32 descr: GPTELECOM origin: AS270880 notify: giltor.ce [at] hotmail.com geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-CE geoidx: Ceará mnt-by: MAINT-AS270880 changed: giltor.ce [at] hotmail.com 20240217 source: TC last-modified: 2024-02-17T11:34:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:72dc::/32 origin: AS270880 descr: CUSTOMER A G P DA SILVA ME mnt-by: MAINT-AS28598 changed: leandro.santos [at] mobtelecom.com.br 20200702 #11:36:20Z source: RADB last-modified: 2023-11-13T16:12:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:72dc::/33 descr: GPTELECOM origin: AS270880 notify: giltor.ce [at] hotmail.com geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-CE geoidx: Ceará mnt-by: MAINT-AS270880 changed: giltor.ce [at] hotmail.com 20240217 source: TC last-modified: 2024-02-17T11:34:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:72dc:8000::/33 descr: GPTELECOM origin: AS270880 notify: giltor.ce [at] hotmail.com geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-CE geoidx: Ceará mnt-by: MAINT-AS270880 changed: giltor.ce [at] hotmail.com 20240217 source: TC last-modified: 2024-02-17T11:34:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source