Report for 28580

Name

AS28580 - Cilnet Comunicacao e Informatica S.A., 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.

28580 AS28580 - Cilnet Comunicacao e Informatica S.A., BR

  Adjacency:     8  Upstream:     2  Downstream:     6
  Upstream Adjacent AS list
    AS37468         Angola Cables - Angola Cables, AO
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
  Downstream Adjacent AS list
    AS266462        AS266462 - SW Telecomunicacoes e Informatica Itu Ltda. - ME, BR
    AS52887         AS52887 - Associacao Torre de Vigia de Biblias e Tratados, BR
    AS61855         AS61855 - NOVA NET TECNOLOGIA LTDA - ME, BR
    AS268989        AS268989 - MULTTV CONSULTORIA E LOCACOES DE EQUIPAMENTOS S.A., BR
    AS267976        AS267976 - Faster Instalacoes e Servicos Eireli, BR
    AS266140        AS266140 - CMC TELECOM LTDA, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
2184  AS28580        ORG+TRN Originate:     111616 /15.23  Transit:       7168 /19.19 AS28580 - Cilnet Comunicacao e Informatica S.A., 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       %
 3459 AS28580       AS28580 - Cilnet Comunicacao e Informatica S.     42     21      6     27     15  35.71%


  Prefix               AS Path                              Aggregation Suggestion
  45.7.204.0/22        4777 2497 3356 28580   
  45.166.124.0/22      4777 2497 3356 28580   
  45.170.140.0/22      4777 2497 3356 28580   
  45.224.76.0/22       4777 2497 3356 28580   
  45.237.16.0/22       4777 2497 3356 28580   
  138.0.180.0/22       4777 2497 3356 28580   
  138.122.68.0/22      4777 2497 3356 28580   
  138.186.180.0/22     4777 2497 3356 28580   
  143.0.232.0/22       4777 2497 3356 28580   
  168.90.184.0/22      4777 2497 3356 28580   
  168.194.4.0/22       4777 2497 3356 28580   
  168.194.228.0/22     4777 2497 3356 28580   
  170.245.20.0/22      4777 2497 3356 28580   
  170.247.116.0/22     4777 2497 3356 28580   
  177.85.40.0/22       4777 2497 3356 28580   
  177.101.48.0/20      4777 2497 3356 28580   
  186.195.176.0/20     4777 2497 3356 28580   
  186.224.128.0/18     4777 2497 3356 28580 + Announce - aggregate of 186.224.128.0/19 (4777 2497 3356 28580) and 186.224.160.0/19 (4777 2497 3356 28580)
  186.224.128.0/19     4777 2497 3356 28580 - Withdrawn - aggregated with 186.224.160.0/19 (4777 2497 3356 28580)
  186.224.128.0/21     4777 2497 3356 28580 - Withdrawn - matching aggregate 186.224.128.0/19 4777 2497 3356 28580
  186.224.136.0/21     4777 2497 3356 28580 - Withdrawn - matching aggregate 186.224.128.0/19 4777 2497 3356 28580
  186.224.144.0/21     4777 2497 3356 28580 - Withdrawn - matching aggregate 186.224.128.0/19 4777 2497 3356 28580
  186.224.152.0/21     4777 2497 3356 28580 - Withdrawn - matching aggregate 186.224.128.0/19 4777 2497 3356 28580
  186.224.160.0/19     4777 2497 3356 28580 - Withdrawn - aggregated with 186.224.128.0/19 (4777 2497 3356 28580)
  186.224.160.0/20     4777 2497 3356 28580 - Withdrawn - matching aggregate 186.224.160.0/19 4777 2497 3356 28580
  186.224.176.0/20     4777 2497 3356 28580 - Withdrawn - matching aggregate 186.224.160.0/19 4777 2497 3356 28580
  187.45.0.0/19        4777 2497 3356 28580 + Announce - aggregate of 187.45.0.0/20 (4777 2497 3356 28580) and 187.45.16.0/20 (4777 2497 3356 28580)
  187.45.0.0/20        4777 2497 3356 28580 - Withdrawn - aggregated with 187.45.16.0/20 (4777 2497 3356 28580)
  187.45.0.0/21        4777 2497 3356 28580 - Withdrawn - matching aggregate 187.45.0.0/20 4777 2497 3356 28580
  187.45.16.0/20       4777 2497 3356 28580 - Withdrawn - aggregated with 187.45.0.0/20 (4777 2497 3356 28580)
  187.45.16.0/21       4777 2497 3356 28580 - Withdrawn - matching aggregate 187.45.16.0/20 4777 2497 3356 28580
  187.45.28.0/22       4777 2497 3356 28580 - Withdrawn - matching aggregate 187.45.16.0/20 4777 2497 3356 28580
  187.84.0.0/20        4777 2497 3356 28580   
  189.28.224.0/19      4777 2497 3356 28580 + Announce - aggregate of 189.28.224.0/20 (4777 2497 3356 28580) and 189.28.240.0/20 (4777 2497 3356 28580)
  189.28.224.0/20      4777 2497 3356 28580 - Withdrawn - aggregated with 189.28.240.0/20 (4777 2497 3356 28580)
  189.28.240.0/20      4777 2497 3356 28580 - Withdrawn - aggregated with 189.28.224.0/20 (4777 2497 3356 28580)
  189.39.80.0/20       4777 2497 3356 28580 + Announce - aggregate of 189.39.80.0/21 (4777 2497 3356 28580) and 189.39.88.0/21 (4777 2497 3356 28580)
  189.39.80.0/21       4777 2497 3356 28580 - Withdrawn - aggregated with 189.39.88.0/21 (4777 2497 3356 28580)
  189.39.88.0/21       4777 2497 3356 28580 - Withdrawn - aggregated with 189.39.80.0/21 (4777 2497 3356 28580)
  189.51.208.0/20      4777 2497 3356 28580   
  191.253.224.0/19     4777 2497 3356 28580 + Announce - aggregate of 191.253.224.0/20 (4777 2497 3356 28580) and 191.253.240.0/20 (4777 2497 3356 28580)
  191.253.224.0/20     4777 2497 3356 28580 - Withdrawn - aggregated with 191.253.240.0/20 (4777 2497 3356 28580)
  191.253.240.0/20     4777 2497 3356 28580 - Withdrawn - aggregated with 191.253.224.0/20 (4777 2497 3356 28580)
  200.187.80.0/20      4777 2497 3356 28580   
  201.46.32.0/19       4777 2497 3356 28580 + Announce - aggregate of 201.46.32.0/20 (4777 2497 3356 28580) and 201.46.48.0/20 (4777 2497 3356 28580)
  201.46.32.0/20       4777 2497 3356 28580 - Withdrawn - aggregated with 201.46.48.0/20 (4777 2497 3356 28580)
  201.46.48.0/20       4777 2497 3356 28580 - Withdrawn - aggregated with 201.46.32.0/20 (4777 2497 3356 28580)
  201.150.100.0/22     4777 2497 3356 28580   

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

AS28580   13 More Specifics   42 Total Advertisements   AS28580 - Cilnet Comunicacao e Informatica S.A., BR
    186.224.128.0/21              186.224.128.0/19
    186.224.136.0/21              186.224.128.0/19
    186.224.144.0/21              186.224.128.0/19
    186.224.152.0/21              186.224.128.0/19
    186.224.160.0/20              186.224.160.0/19
    186.224.176.0/20              186.224.160.0/19
    187.45.0.0/21                 187.45.0.0/20
    187.45.16.0/21                187.45.16.0/20
    187.45.28.0/22                187.45.16.0/20
    189.39.80.0/21                189.39.80.0/20
    189.39.88.0/21                189.39.80.0/20
    191.253.224.0/20              191.253.224.0/19
    191.253.240.0/20              191.253.224.0/19

Whois Entry

whois: 402591

IANA has recorded AS28580 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS28580\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.
             % 2026-06-05T08:52:09-03:00 - 2401:2000:6660::13
             
             aut-num:     AS28580
             owner:       Cilnet Comunica��o e Inform�tica S.A.
             ownerid:     04.127.856/0001-83
             responsible: Israel Arruda Neto
             country:     BR
             owner-c:     IAN11
             routing-c:   IAN11
             abuse-c:     IAN11
             created:     20050117
             changed:     20260513
             inetnum:     200.187.80.0/20
             inetnum:     201.46.32.0/20
             inetnum:     201.46.48.0/20
             inetnum:     189.28.224.0/20
             inetnum:     189.28.240.0/20
             inetnum:     187.45.0.0/20
             inetnum:     187.45.16.0/20
             inetnum:     2804:90::/32
             inetnum:     186.224.128.0/19
             inetnum:     186.224.160.0/19
             inetnum:     191.253.224.0/19
             inetnum:     186.195.176.0/20
             inetnum:     45.237.16.0/22
             inetnum:     168.194.228.0/22
             inetnum:     170.247.116.0/22
             inetnum:     45.7.204.0/22
             inetnum:     177.85.40.0/22
             inetnum:     201.150.100.0/22
             inetnum:     138.0.180.0/22
             inetnum:     138.186.180.0/22
             inetnum:     168.90.184.0/22
             inetnum:     168.194.4.0/22
             inetnum:     170.245.20.0/22
             inetnum:     45.224.76.0/22
             inetnum:     187.84.0.0/20
             inetnum:     138.122.68.0/22
             inetnum:     45.170.140.0/22
             inetnum:     189.51.208.0/20
             inetnum:     189.39.80.0/20
             inetnum:     143.0.232.0/22
             inetnum:     177.101.48.0/20
             inetnum:     45.166.124.0/22
             as-in:       from AS174 100 accept ANY
             as-in:       from AS3356 100 accept ANY
             as-in:       from AS3549 100 accept ANY
             as-in:       from AS37468 100 accept ANY
             as-in:       from AS27693 500 accept AS27693
             as-in:       from AS28352 500 accept AS28352
             as-in:       from AS52887 500 accept AS52887
             as-in:       from AS52961 500 accept AS52961
             as-in:       from AS61855 500 accept AS61855
             as-in:       from AS61899 500 accept AS61899
             as-in:       from AS262333 500 accept AS262333
             as-in:       from AS262743 500 accept AS262743
             as-in:       from AS266140 500 accept AS266140
             as-in:       from AS266462 500 accept AS266462
             as-in:       from AS267976 500 accept AS267976
             as-in:       from AS267977 500 accept AS267977
             as-in:       from AS268989 500 accept AS268989
             as-in:       from AS269677 500 accept AS269677
             as-in:       from AS270260 500 accept AS270260
             as-in:       from AS270585 500 accept AS270585
             as-in:       from AS270945 500 accept AS270945
             as-out:      to AS174 announce AS28580 AS27693 AS28352 AS52887 AS52961 AS61855 AS61899 AS262333 AS262743 AS266140 AS266462 AS267976 AS267977 AS268989 AS269677 AS270260 AS270585 AS270945
             as-out:      to AS3356 announce AS28580 AS27693 AS28352 AS52887 AS52961 AS61855 AS61899 AS262333 AS262743 AS266140 AS266462 AS267976 AS267977 AS268989 AS269677 AS270260 AS270585 AS270945
             as-out:      to AS3549 announce AS28580 AS270260 AS270585 AS270945
             as-out:      to AS37468 announce AS28580 AS27693 AS28352 AS52887 AS52961 AS61855 AS61899 AS262333 AS262743 AS266140 AS266462 AS267976 AS267977 AS268989 AS269677 AS270260 AS270585 AS270945
             as-out:      to AS27693 announce ANY
             as-out:      to AS28352 announce ANY
             as-out:      to AS52887 announce ANY
             as-out:      to AS52961 announce ANY
             as-out:      to AS61855 announce ANY
             as-out:      to AS61899 announce ANY
             as-out:      to AS262333 announce ANY
             as-out:      to AS262743 announce ANY
             as-out:      to AS266140 announce ANY
             as-out:      to AS266462 announce ANY
             as-out:      to AS267976 announce ANY
             as-out:      to AS267977 announce ANY
             as-out:      to AS268989 announce ANY
             as-out:      to AS269677 announce ANY
             as-out:      to AS270260 announce ANY
             as-out:      to AS270585 announce ANY
             as-out:      to AS270945 announce ANY
             
             nic-hdl-br:  IAN11
             person:      Israel Arruda Neto
             e-mail:      israelarrudaneto@gmail.com
             country:     BR
             created:     20000729
             changed:     20260507
             
             % 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.