These entries are queried from radb.net using whois, you can try my project getting these.
:AS263873 route: 138.186.16.0/22 descr: Conecta NET origin: AS263873 notify: db-admin [at] bgp.net.br mnt-by: MAINT-AS263873 changed: db-admin [at] bgp.net.br 20231011 source: TC last-modified: 2023-10-11T17:01:52Z rpki-ov-state: valid route: 138.186.16.0/22 descr: CLARO S.A. Customer origin: AS263873 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20231221 source: RADB last-modified: 2023-12-21T13:51:08Z rpki-ov-state: valid route: 138.186.16.0/22 origin: AS263873 descr: PROXY FOR OUR CUSTOMER CONE mnt-by: MAINT-AS266520 changed: luiz.maia [at] voob.com.br 20210528 source: ALTDB rpki-ov-state: valid route: 138.186.16.0/23 descr: CLARO S.A. Customer origin: AS263873 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210113 source: RADB last-modified: 2023-11-13T16:03:23Z rpki-ov-state: valid route: 138.186.16.0/24 descr: CLARO S.A. Customer origin: AS263873 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20230807 source: RADB last-modified: 2023-11-13T16:17:57Z rpki-ov-state: valid route: 138.186.17.0/24 descr: CLARO S.A. Customer origin: AS263873 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220824 source: RADB last-modified: 2023-11-13T16:12:12Z rpki-ov-state: valid route: 138.186.18.0/23 descr: CLARO S.A. Customer origin: AS263873 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210113 source: RADB last-modified: 2023-11-13T16:03:23Z rpki-ov-state: valid route: 138.186.18.0/24 descr: CLARO S.A. Customer origin: AS263873 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20230807 source: RADB last-modified: 2023-11-13T16:17:57Z rpki-ov-state: valid route: 138.186.19.0/24 descr: CLARO S.A. Customer origin: AS263873 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20230807 source: RADB last-modified: 2023-11-13T16:17:57Z rpki-ov-state: valid route6: 2804:2710::/32 descr: Conecta NET origin: AS263873 notify: db-admin [at] bgp.net.br mnt-by: MAINT-AS263873 changed: db-admin [at] bgp.net.br 20231011 source: TC last-modified: 2023-10-11T17:02:58Z rpki-ov-state: valid route6: 2804:2710::/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: AS263873 mnt-by: MAINT-AS14840 changed: gacosta [at] commcorp.com.br 20200721 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: valid route6: 2804:2710::/32 origin: AS263873 descr: PROXY FOR OUR CUSTOMER CONE mnt-by: MAINT-AS266520 changed: luiz.maia [at] voob.com.br 20210528 source: ALTDB rpki-ov-state: valid route6: 2804:2710::/33 descr: CLARO S.A. Customer origin: AS263873 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210518 source: RADB last-modified: 2023-11-13T16:05:45Z rpki-ov-state: valid route6: 2804:2710:8000::/33 descr: CLARO S.A. Customer origin: AS263873 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210518 source: RADB last-modified: 2023-11-13T16:05:45Z rpki-ov-state: valid