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	Prefix	Description
	177.8.71.0/24	NT FIBRA
	200.124.78.0/23	NT FIBRA
	2804:8a58::/32	Network internet
	2804:8a58::/33	Network internet
	2804:8a58:100::/40	Network internet
	2804:8a58:aa00::/40	Network internet
	2804:8a58:ba00::/40	Network internet

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS21574	Century Telecom Ltda	✔	✔
	AS52772	SJNET TELECOMUNICACOES - EIRELI	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS21574	Century Telecom Ltda	✔	✔
	AS52772	SJNET TELECOMUNICACOES - EIRELI	✔	✔
	AS272736	VMMARTINS COMUNICAÇÕES	✘	✔
	AS265419	WA. TELECON COMERCIO E SERVICOS LTDA	✔	✘
	AS199524	Gcore S.A.	✔	✔
	AS14840	BR.DIGITAL	✔	✘
	AS13335	Cloudflare, Inc.	✔	✔
	AS1916	RNP - Rede Nacional de Ensino e Pesquisa	✔	✔
	AS6057	Administracion Nacional de Telecomunicaciones	✔	✔
	AS267613	ELETRONET S.A.	✔	✔
	AS269396	UNIR TELECOM	✔	✔
	AS265169	VIPNETT TELECOM	✔	✘
	AS266196	BRASCOM SOLUCOES E TECNOLOGIA LTDA ME	✔	✘
	AS265061	GC NET	✔	✘
	AS263903	INFORBARRA TELECOM	✔	✘
	AS53062	ALT | GRUPO BRASIL TECPAR	✔	✘
	AS52999	START TELECOM LTDA	✔	✘
	AS271253	LINK BRASIL TELECOMUNICACOES LTDA	✔	✘
	AS28283	Adyl Telecom	✔	✘
	AS61832	Giga+ Empresas	✔	✘
	AS52965	1Telecom	✔	✘
	AS53427	TGLOBAL NETWORKS	✔	✘
	AS263444	Open X Tecnologia Ltda	✘	✔

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Downstreams

	ASN	Description	IPv4	IPv6
	AS52772	SJNET TELECOMUNICACOES - EIRELI	✔	✘
	AS272736	VMMARTINS COMUNICAÇÕES	✘	✔
	AS265419	WA. TELECON COMERCIO E SERVICOS LTDA	✔	✘

% 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.
% 2026-03-17T13:21:15-03:00 - 2a0c:2f07:9459:2c13::247

aut-num:     AS273663
owner:       NT FIBRA
ownerid:     39.713.247/0001-90
responsible: Filipe de Oliveira fonseca
country:     BR
owner-c:     FIOFO
routing-c:   FIOFO
abuse-c:     FIOFO
created:     20221226
changed:     20231218
inetnum:     2804:8a58::/32
inetnum:     177.8.71.0/24
inetnum:     200.124.78.0/23
as-in:       from AS52772 100 accept ANY
as-out:      to AS52772 announce AS273663

nic-hdl-br:  FIOFO
person:      Filipe de Oliveira Fonseca
# Email removed, Log into bgp.tools to see whois emails/phone numbers
country:     BR
created:     20210718
changed:     20260212

% 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: 2026-03-17T16:21:16Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
ALTDB	as-sjnet-customers	208
ALTDB	as-ntfibra	1
RADB	as-ctbc-tools-4	999
RADB	as-ufla-transcust	9831
RADB	as-k2telecom-costumers	1060
RADB	as-hurricanev6	21157
RADB	as-durand1-customer	4960
RADB	as53013:as-cone	9831
RADB	as-e1-automation-customer	4761
RADB	as-sb-automation-customer	2474
RADB	as-ctbc-customers242	45
RADB	as-53427-tglobal	2374
RADB	as-openx-customers	1221
RADB	as-21574-customers	582
RADB	as-embratelnet	6371
RADB	as-267613	5669
RADB	as-forte-telecom-downstreams	810