These entries are queried from radb.net using whois, you can try my project getting these.
:AS52897 route: 186.250.228.0/22 descr: AS-MLA-CUSTOMER-264415 origin: AS52897 remarks: Cliente do Cliente Maxis Telecom remarks: AS PATH 267613 264415 52897 remarks: Usuario XConn rsilva remarks: ************************************************************ remarks: This is a Eletronet customer proxy route object that was cre remarks: ated because no existing route object with the same origin w remarks: as found. Please contact noc [at] eletronet.net.br if you have an remarks: y questions regarding this object. remarks: ************************************************************ notify: coreweb_tier2 [at] eletronet.com notify: filtrosbgpoperadoras [at] eletronet.com mnt-by: MAINT-AS267613 changed: filtrosbgpoperadoras [at] eletronet.com 20201110 #10:20:05Z source: RADB last-modified: 2023-11-13T16:02:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source