Report for 28642

Name

AS28642 - Contato Internet Ltda, 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.

28642 AS28642 - Contato Internet Ltda, BR

  Adjacency:    13  Upstream:     3  Downstream:    10
  Upstream Adjacent AS list
    AS174           COGENT-174 - Cogent Communications, LLC, US
    AS267469        AS267469 - W8 Telecom Ltda - ME, BR
    AS28329         AS28329 - SAMM TECNOLOGIA E TELECOMUNICACOES S.A, BR
  Downstream Adjacent AS list
    AS263634        AS263634 - TACNET TELECOM, BR
    AS52910         AS52910 - A. Angeloni & Cia Ltda, BR
    AS263670        AS263670 - Giassi & Cia Ltda, BR
    AS265081        AS265081 - Carlessi Internet LTDA, BR
    AS265302        AS265302 - SULCATEL COMERCIO DE TELEFONIA LTDA - ME, BR
    AS268073        AS268073 - GENESIO A. MENDES & CIA. LTDA., BR
    AS271543        AS271543 - Eghert Informatica Ltda ME, BR
    AS52706         AS52706 - 3D TELECOMUNICACOES LTDA, BR
    AS268426        AS268426 - F. MAGNUS SCHARDOSIM, BR
    AS52977         AS52977 - Sul Online Telecom Ltda - EPP, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
6307  AS28642        ORG+TRN Originate:      23296 /17.49  Transit:      14336 /18.19 AS28642 - Contato Internet Ltda, 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       %
 2059 AS28642       AS28642 - Contato Internet Ltda, BR               43     33      5     15     28  65.12%


  Prefix               AS Path                              Aggregation Suggestion
  168.228.180.0/22     4608 7575 7195 267469 28642   
  168.228.180.0/22     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 + Announce - aggregate of 168.228.180.0/23 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642) and 168.228.182.0/23 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  168.228.180.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 168.228.181.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  168.228.181.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 168.228.180.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  168.228.182.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 168.228.183.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  168.228.183.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 168.228.182.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  170.246.128.0/22     4608 7575 7195 267469 28642   
  170.246.128.0/23     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 + Announce - aggregate of 170.246.128.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642) and 170.246.129.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  170.246.128.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 170.246.129.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  170.246.129.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 170.246.128.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  170.246.130.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642   
  170.246.131.0/24     4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 170.246.128.0/22 4608 7575 7195 267469 28642
  179.108.160.0/20     4608 7575 7195 267469 28642   
  179.108.160.0/22     4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 179.108.160.0/20 4608 7575 7195 267469 28642
  179.108.160.0/21     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 + Announce - aggregate of 179.108.160.0/22 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642) and 179.108.164.0/22 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  179.108.160.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 179.108.161.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  179.108.161.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 179.108.160.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  179.108.162.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 179.108.163.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  179.108.163.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 179.108.162.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  179.108.164.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 179.108.165.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  179.108.165.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 179.108.164.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  179.108.166.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 179.108.167.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  179.108.167.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 179.108.166.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  179.108.168.0/23     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 + Announce - aggregate of 179.108.168.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642) and 179.108.169.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  179.108.168.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 179.108.169.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  179.108.169.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 179.108.168.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  179.108.170.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642   
  179.108.171.0/24     4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 179.108.160.0/20 4608 7575 7195 267469 28642
  179.108.174.0/24     4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642   
  201.76.0.0/20        4608 7575 7195 267469 28642   
  201.76.0.0/22        4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 201.76.0.0/20 4608 7575 7195 267469 28642
  201.76.0.0/24        4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 201.76.0.0/20 4608 7575 7195 267469 28642
  201.76.1.0/24        4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 201.76.0.0/20 4608 7575 7195 267469 28642
  201.76.2.0/24        4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642   
  201.76.3.0/24        4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 201.76.0.0/20 4608 7575 7195 267469 28642
  201.76.4.0/22        4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 201.76.0.0/20 4608 7575 7195 267469 28642
  201.76.4.0/24        4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 201.76.0.0/20 4608 7575 7195 267469 28642
  201.76.5.0/24        4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 201.76.0.0/20 4608 7575 7195 267469 28642
  201.76.6.0/24        4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 201.76.0.0/20 4608 7575 7195 267469 28642
  201.76.8.0/22        4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 201.76.0.0/20 4608 7575 7195 267469 28642
  201.76.8.0/23        4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 + Announce - aggregate of 201.76.8.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642) and 201.76.9.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  201.76.8.0/24        4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 201.76.9.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  201.76.9.0/24        4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642 - Withdrawn - aggregated with 201.76.8.0/24 (4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642)
  201.76.10.0/24       4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642   
  201.76.12.0/24       4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 201.76.0.0/20 4608 7575 7195 267469 28642
  201.76.13.0/24       4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 201.76.0.0/20 4608 7575 7195 267469 28642
  201.76.14.0/24       4608 7575 7195 267469 28642 28642 28642 28642 28642 28642 28642 28642 28642   
  201.76.15.0/24       4608 7575 7195 267469 28642 - Withdrawn - matching aggregate 201.76.0.0/20 4608 7575 7195 267469 28642

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

AS28642   39 More Specifics   43 Total Advertisements   AS28642 - Contato Internet Ltda, BR
    168.228.180.0/24              168.228.180.0/22
    168.228.181.0/24              168.228.180.0/22
    168.228.182.0/24              168.228.180.0/22
    168.228.183.0/24              168.228.180.0/22
    170.246.128.0/24              170.246.128.0/22
    170.246.129.0/24              170.246.128.0/22
    170.246.130.0/24              170.246.128.0/22
    170.246.131.0/24              170.246.128.0/22
    179.108.160.0/22              179.108.160.0/20
    179.108.160.0/24              179.108.160.0/20
    179.108.161.0/24              179.108.160.0/20
    179.108.162.0/24              179.108.160.0/20
    179.108.163.0/24              179.108.160.0/20
    179.108.164.0/24              179.108.160.0/20
    179.108.165.0/24              179.108.160.0/20
    179.108.166.0/24              179.108.160.0/20
    179.108.167.0/24              179.108.160.0/20
    179.108.168.0/24              179.108.160.0/20
    179.108.169.0/24              179.108.160.0/20
    179.108.170.0/24              179.108.160.0/20
    179.108.171.0/24              179.108.160.0/20
    179.108.174.0/24              179.108.160.0/20
    201.76.0.0/22                 201.76.0.0/20
    201.76.0.0/24                 201.76.0.0/20
    201.76.1.0/24                 201.76.0.0/20
    201.76.2.0/24                 201.76.0.0/20
    201.76.3.0/24                 201.76.0.0/20
    201.76.4.0/22                 201.76.0.0/20
    201.76.4.0/24                 201.76.0.0/20
    201.76.5.0/24                 201.76.0.0/20
    201.76.6.0/24                 201.76.0.0/20
    201.76.8.0/22                 201.76.0.0/20
    201.76.8.0/24                 201.76.0.0/20
    201.76.9.0/24                 201.76.0.0/20
    201.76.10.0/24                201.76.0.0/20
    201.76.12.0/24                201.76.0.0/20
    201.76.13.0/24                201.76.0.0/20
    201.76.14.0/24                201.76.0.0/20
    201.76.15.0/24                201.76.0.0/20

Whois Entry

whois: 402609

IANA has recorded AS28642 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS28642\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.
             % 2026-06-11T06:16:11-03:00 - 2401:2000:6660::13
             
             aut-num:     AS28642
             owner:       Contato Internet Ltda
             ownerid:     07.562.175/0001-31
             responsible: Alexandre Fenzke
             country:     BR
             owner-c:     COILT13
             routing-c:   COIBG
             abuse-c:     CIA76
             created:     20060419
             changed:     20210419
             inetnum:     201.76.0.0/20
             inetnum:     179.108.160.0/20
             inetnum:     2804:ef4::/32
             inetnum:     170.246.128.0/22
             inetnum:     168.228.180.0/22
             as-in:       from AS174 100 accept ANY
             as-in:       from AS6939 100 accept ANY
             as-in:       from AS267469 100 accept ANY
             as-out:      to AS174 announce AS28642
             as-out:      to AS6939 announce AS28642
             as-out:      to AS267469 announce AS28642
             
             nic-hdl-br:  COILT13
             person:      Contato Internet Ltda.
             e-mail:      dominios@contato.net
             country:     BR
             created:     20080201
             changed:     20150912
             
             nic-hdl-br:  COIBG
             person:      Contato Internet - BGP
             e-mail:      bgp@contato.net
             country:     BR
             created:     20181203
             changed:     20181203
             
             nic-hdl-br:  CIA76
             person:      Contato Internet - Abusos
             e-mail:      abuse@contato.net
             country:     BR
             created:     20060504
             changed:     20171026
             
             % 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.