Report for 266604

Name

COMPANHIA ENERGETICA DE MINAS GERAIS, BR

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS2.0) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

266604 COMPANHIA ENERGETICA DE MINAS GERAIS, BR

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS14840         BR.Digital Telecom, BR
    AS23106         AMERICAN TOWER DO BRASIL-COMUNICACAO MULTIMIDIA LT, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
42089 AS266604       ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  COMPANHIA ENERGETICA DE MINAS GERAIS, BR

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
28822 AS266604      COMPANHIA ENERGETICA DE MINAS GERAIS, BR           3      1      0      2      1  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  128.201.18.0/23      4777 2497 174 23106 266604 266604   
  128.201.18.0/24      4777 2497 174 23106 266604 266604 - Withdrawn - matching aggregate 128.201.18.0/23 4777 2497 174 23106 266604 266604
  128.201.19.0/24      4777 2497 174 14840 266604 266604 266604 266604   

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS266604   2 More Specifics   3 Total Advertisements   COMPANHIA ENERGETICA DE MINAS GERAIS, BR
    128.201.18.0/24               128.201.18.0/23
    128.201.19.0/24               128.201.18.0/23

Whois Entry

whois: 402332

IANA has recorded AS266604 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS266604\n             % IP Client: 2401:2000:6660::13
              % Copyright (c) Nic.br - Use of this data is governed by the Use and
             % Privacy Policy at https://registro.br/upp . Distribution,
             % commercialization, reproduction, and use for advertising or similar
             % purposes are expressly prohibited.
             % 2026-04-02T13:28:42-03:00 - 2401:2000:6660::13
             
             aut-num:     AS266604
             owner:       COMPANHIA ENERGETICA DE MINAS GERAIS
             ownerid:     17.155.730/0001-64
             responsible: Centro de Operacao de TI e Telecom
             country:     BR
             owner-c:     COTTE6
             routing-c:   COTTE6
             abuse-c:     COTTE6
             created:     20170606
             changed:     20230921
             inetnum:     128.201.18.0/23
             inetnum:     2801:80:1ce0::/44
             
             nic-hdl-br:  COTTE6
             person:      Centro de Opera��es de TI e Telecom
             e-mail:      cmg-nic@cemig.com.br
             country:     BR
             created:     20230509
             changed:     20230901
             
             % Security and mail abuse issues should also be addressed to cert.br,
             % respectivelly to cert@cert.br and mail-abuse@cert.br
             %
             % whois.registro.br only accepts exact match queries for domains,
             % registrants, contacts, tickets, providers, IPs, and ASNs.