ASN Lookup Tool

FASTNET COMUNICACAO EIRELI ME portalfast.net BR BR 11 Routes

AS Data

AS263990

AS263990 – FASTNET COMUNICACAO EIRELI ME

AS Number 263990
AS Name 18.632.169/0001-20
Organization FASTNET COMUNICACAO EIRELI ME
Country BR
Website portalfast.net
Number of IPv4 Routes 7
Number of IPv6 Routes 4
ASN type ISP
Registry lacnic
Date Allocated 2015-09-08

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Use ASN data for AS263990 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
143.0.16.0/22 1024
143.0.16.0/24 256
2804:28f8:4101::/48 ~1×10²⁴
2804:28f8:4100::/48 ~1×10²⁴
143.0.18.0/23 512
143.0.16.0/23 512
143.0.19.0/24 256
143.0.18.0/24 256
2804:28f8:5000::/48 ~1×10²⁴
143.0.17.0/24 256

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.
% 2026-06-05T09:28:30-03:00 - 204.217.150.187

aut-num:     AS263990
owner:       FASTNET COMUNICACAO EIRELI - ME
ownerid:     18.632.169/0001-20
responsible: Jefferson Jos� Ferreira de Lima
country:     BR
owner-c:     JEFER78
routing-c:   JEFER78
abuse-c:     AASJU252
created:     20150908
changed:     20211104
inetnum:     143.0.16.0/22
inetnum:     2804:28f8::/32

nic-hdl-br:  JEFER78
person:      jefferson ferreira
e-mail:      projetos@portalfast.net
country:     BR
created:     20120205
changed:     20250806

nic-hdl-br:  AASJU252
person:      ANTERIO ANDRADE SANTOS JUNIOR
e-mail:      anteriojunior@hotmail.com
country:     BR
created:     20211103
changed:     20240111

% 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
AS269338 jato net telecomunicaçoes ltda BR
AS269338 jato net telecomunica�oes ltda BR

Upstreams

AS Number Description Country
AS269338 jato net telecomunicaçoes ltda BR

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Frequently Asked Questions

ASN AS263990 is an Autonomous System Number used to identify a network for BGP internet routing.
AS263990 is listed under FASTNET COMUNICACAO EIRELI ME.
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.