These entries are queried from radb.net using whois, you can try my project getting these.
:AS263920 route: 138.185.240.0/22 descr: MAST TELECOMUNICACOES origin: AS263920 mnt-by: MAINT-AS263920 changed: junior [at] routerx.net.br 20211005 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.185.240.0/22 descr: MAST TELECOMUNICACOES E INFORMATICA LTDA origin: AS263920 mnt-by: MAINT-AS263920 notify: db-admin [at] bgp.net.br changed: db-admin [at] bgp.net.br 20190510 #16:51:17(-03) source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.185.240.0/22 descr: AS263920 origin: AS263920 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20171120 #15:02:35Z source: RADB last-modified: 2023-11-13T15:52:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.185.240.0/22 descr: AS263920-MAST origin: AS263920 notify: suporte [at] wirelink.com.br notify: bgp [at] wirelink.com.br mnt-by: MAINT-AS61832 changed: suporte [at] wirelink.com.br 20200424 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.185.240.0/23 descr: This route object is for a UPX Technologies customer route, which is being exported under this origin AS. This route object was created because no existing route object with the same origin was found, and since some UPX peers filter based on these objects this route may be rejected if this object is not created. Please contact noc [at] upx.com.br if you have any questions regarding this object. origin: AS263920 mnt-by: MAINT-AS52863 changed: noc [at] upx.com.br 20180201 #103628-02 source: RADB last-modified: 2023-11-13T15:53:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.185.240.0/23 descr: MAST TELECOMUNICACOES origin: AS263920 mnt-by: MAINT-AS263920 changed: junior [at] routerx.net.br 20211005 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.185.240.0/24 descr: MAST TELECOMUNICACOES origin: AS263920 mnt-by: MAINT-AS263920 changed: junior [at] routerx.net.br 20211005 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.185.241.0/24 descr: MAST TELECOMUNICACOES origin: AS263920 mnt-by: MAINT-AS263920 changed: junior [at] routerx.net.br 20211005 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.185.242.0/23 descr: MAST TELECOMUNICACOES origin: AS263920 mnt-by: MAINT-AS263920 changed: junior [at] routerx.net.br 20211005 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.185.242.0/23 descr: This route object is for a UPX Technologies customer route, which is being exported under this origin AS. This route object was created because no existing route object with the same origin was found, and since some UPX peers filter based on these objects this route may be rejected if this object is not created. Please contact noc [at] upx.com.br if you have any questions regarding this object. origin: AS263920 mnt-by: MAINT-AS52863 changed: noc [at] upx.com.br 20180201 #103628-02 source: RADB last-modified: 2023-11-13T15:53:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.185.242.0/24 descr: MAST TELECOMUNICACOES origin: AS263920 mnt-by: MAINT-AS263920 changed: junior [at] routerx.net.br 20211005 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.185.243.0/24 descr: MAST TELECOMUNICACOES origin: AS263920 mnt-by: MAINT-AS263920 changed: junior [at] routerx.net.br 20211005 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:27c0::/32 descr: This is a Commcorp Telecom customer proxy route object that was created because no existing route object with the same origin was found. Please contact noc [at] commcorp.com.br if you have any questions regarding this object. origin: AS263920 mnt-by: MAINT-AS14840 changed: gacosta [at] commcorp.com.br 20171213 #17:18:53Z source: RADB last-modified: 2023-11-13T15:52:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:27c0::/32 descr: MAST TELECOMUNICACOES origin: AS263920 mnt-by: MAINT-AS263920 changed: junior [at] routerx.net.br 20211005 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:27c0::/33 descr: CLARO S.A. Customer origin: AS263920 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190730 source: RADB last-modified: 2023-11-13T15:56:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:27c0:8000::/33 descr: CLARO S.A. Customer origin: AS263920 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190730 source: RADB last-modified: 2023-11-13T15:56:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source