ASN Lookup Tool

Defferrari Informatica Ltda. BR BR 31 Routes

AS Data

AS28605

AS28605 – Defferrari Informatica Ltda.

AS Number 28605
AS Name
Organization Defferrari Informatica Ltda.
Country BR
Number of IPv4 Routes 24
Number of IPv6 Routes 7
ASN type BUSINESS
Registry lacnic
Date Allocated 2005-07-26

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Use ASN data for AS28605 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
2804:3c0:1::/48 ~1×10²⁴
2804:3c0:a000::/40 ~309×10²⁴
2804:3c0::/32 ~79×10²⁷
201.20.158.0/23 512
201.20.144.0/22 1024
201.20.152.0/21 2048
201.20.152.0/22 1024
2804:3c0:20::/48 ~1×10²⁴
2804:3c0::/48 ~1×10²⁴
2804:3c0:9000::/48 ~1×10²⁴
201.20.145.0/24 256
201.20.149.0/24 256
201.20.156.0/22 1024
201.20.144.0/20 4096
201.20.144.0/23 512
201.20.154.0/23 512
179.127.112.0/23 512
201.20.146.0/23 512
179.127.114.0/23 512
201.20.148.0/24 256
201.20.151.0/24 256
200.159.177.0/24 256
201.20.147.0/24 256
2804:3c0:8001::/48 ~1×10²⁴
201.20.146.0/24 256
179.127.112.0/22 1024
201.20.150.0/24 256
201.20.156.0/23 512
201.20.144.0/21 2048
201.20.144.0/24 256
201.20.152.0/23 512

Raw Whois Response

% 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.
% 2026-09-15T09:19:32-03:00 - 193.34.72.8

aut-num:     AS28605
owner:       Defferrari Informatica Ltda.
responsible: Marco Defferrari
owner-c:     MAD6
routing-c:   MAD6
abuse-c:     MAD6
created:     20050726
changed:     20130306
inetnum:     201.20.144.0/20
inetnum:     2804:3c0::/32
inetnum:     179.127.112.0/22

nic-hdl-br:  MAD6
person:      Marco Defferrari
created:     19971230
changed:     20220207

% 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.

Parsed Whois Response

Peers

AS Number Description Country
AS263152 MIGO TELECOM BR
AS267668 Gigaweb Tecnologia BR
AS61615 FALE S.A. BR
AS7195 EDGEUNO S.A.S CO
AS23106 AMERICAN TOWER DO BRASIL COMUNICAÇÃO MULTIMÍDIA LT BR
AS28584 Defferrari Solucoes em Internet Ltda BR
AS264409 Huge Solucoes Corporativas Ltda BR
AS267256 ONETIS TECNOLOGIA LTDA BR
AS61568 ALOO TELECOM FSF TECNOLOGIA SA BR
AS264529 IW Group Solucoes em TI BR
AS264274 DSP RS TELECOMUNICAÇÕES LTDA. BR
AS266400 Ferenz Networks BR
AS269096 N&K TECNOLOGIA LTDA BR
AS52851 CTA INTERNET LTDA BR
AS268843 CDNTV TECNOLOGIA LTDA BR
AS22128 Defferrari Solucoes em Internet Ltda BR
AS273420 Misternet internet Ltda BR
AS26615 TIM S/A BR
AS272554 Log Fi Internet BR
AS14840 BR.Digital Telecom BR
AS264247 Maila Networks BR
AS52838 WN TELECOM LTDA ME BR
AS61624 INFNOC TECNOLOGIA LTDA BR
AS6057 Administracion Nacional de Telecomunicaciones UY
AS269783 WIND NET S.A. PY
AS268516 Midia Net Telecom BR
AS61930 Telecomunicações Riograndense Ltda BR
AS262847 DBUG TELECOM LTDA BR
AS264920 Shel Net Informatica Ltda BR
AS13786 Seabras 1 USA, LLC US
AS1031 PEER 1031 LLC US
AS28283 Adylnet Telecom BR
AS262355 VSX Networks BR
AS999 CORIX NETWORKS US
AS61884 OLLA COMUNICACAO LTDA BR
AS61622 VIA MS SOLUCOES DIGITAIS BR
AS3356 Level 3 Parent, LLC US
AS269484 START TELECOM BR

Upstreams

AS Number Description Country
AS13786 Seabras 1 USA, LLC US
AS7195 EDGEUNO S.A.S CO
AS26615 TIM S/A BR
AS14840 BR.Digital Telecom BR
AS1031 PEER 1031 LLC US
AS28283 Adylnet Telecom BR
AS52838 WN TELECOM LTDA ME BR
AS6057 Administracion Nacional de Telecomunicaciones UY
AS3356 Level 3 Parent, LLC US
AS264409 Huge Solucoes Corporativas Ltda BR

Downstreams

AS Number Description Country
AS268843 CDNTV TECNOLOGIA LTDA BR
AS22128 Defferrari Solucoes em Internet Ltda BR
AS273420 Misternet internet Ltda BR
AS267668 Gigaweb Tecnologia BR
AS61615 FALE S.A. BR
AS28584 Defferrari Solucoes em Internet Ltda BR
AS268516 Midia Net Telecom BR
AS61930 Telecomunicações Riograndense Ltda BR
AS264920 Shel Net Informatica Ltda BR
AS264529 IW Group Solucoes em TI BR

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Frequently Asked Questions

ASN AS28605 is an Autonomous System Number used to identify a network for BGP internet routing.
AS28605 is listed under Defferrari Informatica Ltda..
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.