These entries are queried from radb.net using whois, you can try my project getting these.
:AS21574 route: 45.5.248.0/22 origin: AS21574 descr: Century Telecom admin-c: CTLDCT38 tech-c: CTLDCT38 mnt-by: MAINT-AS21574 changed: engenharia [at] century.net.br 20231207 # 1442Z source: RADB last-modified: 2023-12-07T14:42:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 168.227.200.0/22 origin: AS21574 descr: Century Telecom admin-c: DCT38 tech-c: PRD72 mnt-by: MAINT-AS21574 changed: engenharia [at] century.net.br 20190926 #12:09:12Z source: RADB last-modified: 2023-11-13T16:08:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.249.224.0/20 descr: Century Telecom Ltda Rua Tenente Garro, 118 - 14 Andar Santa Efigenia CEP: 30240-360 Belo Horizonte - MG - Brasil +55 (31) 3514-7857 origin: AS21574 notify: bgp [at] century.net.br notify: noc [at] century.net.br notify: hiardelovy [at] century.net.br mnt-by: MAINT-AS21574 changed: lovy [at] century.net.br 20150519 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.249.224.0/20 origin: AS21574 descr: Century Telecom admin-c: DCT38 tech-c: PRD72 mnt-by: MAINT-AS21574 changed: engenharia [at] century.net.br 20190926 #12:22:20Z source: RADB last-modified: 2023-11-13T16:08:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.1.176.0/20 descr: Century Telecom Ltda Rua Tenente Garro, 118 - 14 Andar Santa Efigenia CEP: 30240-360 Belo Horizonte - MG - Brasil +55 (31) 3514-7857 origin: AS21574 notify: bgp [at] century.net.br notify: noc [at] century.net.br notify: hiardelovy [at] century.net.br mnt-by: MAINT-AS21574 changed: lovy [at] century.net.br 20150518 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.1.176.0/20 origin: AS21574 descr: Century Telecom admin-c: DCT38 tech-c: PRD72 mnt-by: MAINT-AS21574 changed: engenharia [at] century.net.br 20191009 #16:28:35Z source: RADB last-modified: 2023-11-13T16:08:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.1.178.0/24 descr: CLARO S.A. Customer origin: AS21574 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210315 source: RADB last-modified: 2023-11-13T16:05:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.169.0.0/20 origin: AS21574 descr: Century Telecom admin-c: DCT38 tech-c: PRD72 mnt-by: MAINT-AS21574 changed: engenharia [at] century.net.br 20191009 #14:20:12Z source: RADB last-modified: 2023-11-13T16:08:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.169.0.0/20 descr: Century Telecom Ltda Rua Tenente Garro, 118 - 14 Andar Santa Efigenia CEP: 30240-360 Belo Horizonte - MG - Brasil +55 (31) 3514-7857 origin: AS21574 notify: bgp [at] century.net.br notify: noc [at] century.net.br notify: hiardelovy [at] century.net.br mnt-by: MAINT-AS21574 changed: lovy [at] century.net.br 20150518 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.169.0.0/21 descr: Diveo customer route admin-c: FV298-ARIN tech-c: FV298-ARIN origin: AS21574 notify: jtoni [at] diveo.net.br mnt-by: DIVEO-MNT changed: jtoni [at] diveo.net.br 20040730 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.169.8.0/21 descr: Diveo customer route admin-c: FV298-ARIN tech-c: FV298-ARIN origin: AS21574 notify: jtoni [at] diveo.net.br mnt-by: DIVEO-MNT changed: jtoni [at] diveo.net.br 20040730 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.169.9.0/24 descr: Proxy-registered route object origin: AS21574 remarks: auto-generated route object remarks: this next line gives the robot something to recognize remarks: L'enfer, c'est les autres remarks: remarks: This route object is for a Level 3 customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found, and remarks: since some Level 3 peers filter based on these objects remarks: this route may be rejected if this object is not created. remarks: remarks: Please contact dl-routing [at] lumen.com if you have any remarks: questions regarding this object. mnt-by: LEVEL3-MNT changed: roy [at] Level3.net 20070517 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:23ec::/32 origin: AS21574 descr: Century Telecom admin-c: DCT38 tech-c: PRD72 mnt-by: MAINT-AS21574 changed: engenharia [at] century.net.br 20191010 #13:33:35Z source: RADB last-modified: 2023-11-13T16:08:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source