ASN Lookup Tool

Defferrari Informatica Ltda. BR BR 21 Routes

AS Data

AS28605

AS28605 – Defferrari Informatica Ltda.

AS Number 28605
AS Name
Organization Defferrari Informatica Ltda.()
Country BR
Number of IPv4 Routes 19
Number of IPv6 Routes 2
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
179.127.114.0/23 512
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
201.20.148.0/22 1024
201.20.156.0/22 1024
2804:3c0:8001::/48 ~1×10²⁴
201.20.144.0/20 4096

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.
% 2026-03-18T09:19:42-03:00 - 134.199.70.191

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
AS264274 DSP RS TELECOMUNICAES LTDA. BR
AS263152 MIGO TELECOM BR
AS7195 EDGEUNO S.A.S CO
AS262761 Sinal Br Telecom Ltda BR
AS267668 Gigaweb Tecnologia BR
AS61615 FALE S.A. BR
AS53062 ALT | GRUPO BRASIL TECPAR BR
AS272554 Log-Fi Internet BR
AS264274 DSP RS TELECOMUNICA��ES LTDA. BR
AS28584 Defferrari Solucoes em Internet Ltda BR

Upstreams

AS Number Description Country
AS264409 GRUPO YAX BR
AS262761 Sinal Br Telecom Ltda BR
AS7195 EDGEUNO S.A.S CO
AS26615 TIM S/A BR
AS14840 BR.Digital Telecom BR
AS52838 WN TELECOM LTDA ME BR
AS6057 Administracion Nacional de Telecomunicaciones UY
AS53013 UFINET BRASIL S.A. BR
AS61568 ALOO TELECOM FSF TECNOLOGIA SA BR
AS13786 Seabras 1 USA, LLC US

Downstreams

AS Number Description Country
AS268843 CDNTV TECNOLOGIA LTDA BR
AS273420 Misternet internet Ltda BR
AS22128 Defferrari Solucoes em Internet Ltda BR
AS267668 Gigaweb Tecnologia BR
AS61615 FALE S.A. BR
AS264274 DSP RS TELECOMUNICA��ES LTDA. BR
AS269068 Plus Networks BR
AS28584 Defferrari Solucoes em Internet Ltda BR
AS61930 Telecomunica��es Riograndense Ltda BR
AS268516 Midia Net Telecom 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.