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	Prefix	Description
	179.127.112.0/22	Defferrari Informatica Ltda.
	201.20.150.0/24	Defferrari Informatica Ltda.
	201.20.144.0/22	Defferrari Informatica Ltda.
	201.20.144.0/21	Defferrari Informatica Ltda.
	201.20.144.0/20	Defferrari Informatica Ltda.
	201.20.152.0/22	Defferrari Informatica Ltda.
	201.20.152.0/21	Defferrari Informatica Ltda.
	201.20.156.0/22	Defferrari Informatica Ltda.
	2804:3c0::/32	Defferrari Informatica Ltda.
	2804:3c0:8001::/48	Defferrari Informatica Ltda.

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS3356	Lumen (Level 3)	✔	✔
	AS13786	Seaborn (Seabras USA, LLC)	✔	✔
	AS7195	EdgeUno	✔	✔
	AS28283	Adyl Telecom	✔	✔
	AS52838	WN TELECOM LTDA - ME	✔	✔
	AS264409	Huge Networks	✔	✘
	AS26615	TIM S/A	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS28283	Adyl Telecom	✔	✔
	AS28584	Defferrari Solucoes em Internet Ltda	✔	✔
	AS7195	EdgeUno	✔	✔
	AS3356	Lumen (Level 3)	✔	✔
	AS13786	Seaborn (Seabras USA, LLC)	✔	✔
	AS267668	Gigaweb Tecnologia	✔	✔
	AS264920	Shel Net Informatica Ltda	✔	✔
	AS22128	Defferrari Solucoes em Internet Ltda	✔	✘
	AS264274	DSP RS TELECOMUNICAÇÕES LTDA.	✔	✔
	AS52851	CTA INTERNET LTDA	✔	✔
	AS61930	Telecomunicações Riograndense Ltda	✔	✔
	AS61615	FALE S.A.	✔	✔
	AS269068	Plus Networks	✔	✔
	AS264529	IW Group Solucoes em TI	✔	✘
	AS52838	WN TELECOM LTDA - ME	✔	✔
	AS273420	Misternet internet Ltda	✘	✔
	AS264409	Huge Networks	✔	✘
	AS268843	CDNTV TECNOLOGIA LTDA	✔	✔
	AS26615	TIM S/A	✔	✘
	AS269484	START TELECOM	✔	✔
	AS268516	Midia Net Telecom	✔	✔
	AS14840	BR.DIGITAL	✔	✔
	AS1031	PEER 1031 LLC	✔	✘
	AS267613	ELETRONET S.A.	✔	✘
	AS6057	Administracion Nacional de Telecomunicaciones	✔	✔
	AS13335	Cloudflare, Inc.	✔	✔
	AS1916	RNP - Rede Nacional de Ensino e Pesquisa	✔	✔
	AS271247	RS Sul Telecomunicações Ltda	✔	✔
	AS61624	ISPSHIELD (InfNOC Tecnologia)	✔	✔
	AS28343	Unifique Telecomunicações SA	✔	✘
	AS53062	ALT | GRUPO BRASIL TECPAR	✔	✘
	AS263152	MIGO TELECOM	✔	✘
	AS61568	ALOO TELECOM - FSF TECNOLOGIA SA	✔	✘
	AS262589	SAMM (Internexa)	✔	✘

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Downstreams

	ASN	Description	IPv4	IPv6
	AS28584	Defferrari Solucoes em Internet Ltda	✔	✔
	AS264920	Shel Net Informatica Ltda	✔	✔
	AS267668	Gigaweb Tecnologia	✔	✔
	AS264274	DSP RS TELECOMUNICAÇÕES LTDA.	✔	✔
	AS52851	CTA INTERNET LTDA	✔	✔
	AS22128	Defferrari Solucoes em Internet Ltda	✔	✘
	AS61930	Telecomunicações Riograndense Ltda	✔	✔
	AS61615	FALE S.A.	✔	✔
	AS269068	Plus Networks	✔	✔
	AS264529	IW Group Solucoes em TI	✔	✘
	AS273420	Misternet internet Ltda	✘	✔
	AS268843	CDNTV TECNOLOGIA LTDA	✔	✔
	AS269484	START TELECOM	✔	✔
	AS268516	Midia Net Telecom	✔	✔

% IP Client: 2a0c:2f07:9459:2c13:0:0:0:247
 % 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.
% 2026-02-25T14:08:17-03:00 - 2a0c:2f07:9459:2c13::247

aut-num:     AS28605
owner:       Defferrari Informatica Ltda.
ownerid:     94.966.306/0001-40
responsible: Marco Defferrari
country:     BR
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
# Email removed, Log into bgp.tools to see whois emails/phone numbers
country:     BR
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.

Last Update: 2026-02-25T17:08:18Z UTC

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Member of the following AS-SETs

-	Member
LEVEL3	as-lumen-customers-asns
RADB	as-ctbc-customers30
RADB	as264409:as-cone
RADB	as-cn2
RADB	as26615:as-customers
ALTDB	as-hwng-downstreams
RADB	as53013:as-cone
ALTDB	as-53167-cust
RADB	as-embratelnet
RADB	as28343:as-customers
RADB	as-btn-customers
RADB	as-adylnet-customers
RADB	as-megatelecom-customers
RADB	as14840:as-customers-04
RADB	as-hurricanev6
RADB	as-ctbc-customers108
RADB	as-durand1-customer
RADB	as3491:as-customers-na
RADB	as-ctbc-tools
RADB	as-e1-automation-customer
RADB	as-hurricane
RADB	as-ufinet-latam-brasil
RADB	as-267613
RADB	as-hugenet-customers
RADB	as-angolacables-br