ASN AS11921 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS11921?

AS11921 is listed under SECRELNET INFORMATICA LTDA.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

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AS11921 SECRELNET INFORMATICA LTDA

ASN Lookup Tool

SECRELNET INFORMATICA LTDA

BR 38 Routes

AS Data

AS11921

AS11921 – SECRELNET INFORMATICA LTDA

AS Number	11921
AS Name
Organization	SECRELNET INFORMATICA LTDA
Country	BR
Number of IPv4 Routes	37
Number of IPv6 Routes	1
ASN type	BUSINESS
Registry	lacnic
Date Allocated	1999-11-18

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Use ASN data for AS11921 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
200.194.102.0/23	AS11921	SECRELNET INFORMATICA LTDA	SECRELNET INFORMATICA LTDA	512
200.233.76.0/22	AS11921	SECRELNET INFORMATICA LTDA	Unimed Fortaleza Sociedade Cooperativa Médica Ltda	1024
200.194.106.0/23	AS11921	SECRELNET INFORMATICA LTDA	SECRELNET INFORMATICA LTDA	512
200.233.64.0/21	AS11921	SECRELNET INFORMATICA LTDA	Unimed Fortaleza Sociedade Cooperativa Médica Ltda	2048
200.194.108.0/22	AS11921	SECRELNET INFORMATICA LTDA	SECRELNET INFORMATICA LTDA	1024
201.49.62.0/24	AS11921	SECRELNET INFORMATICA LTDA	SECRELNET INFORMATICA LTDA	256
201.49.48.0/20	AS11921	SECRELNET INFORMATICA LTDA	ESTRUTURANTE TECNOLOGIA DA INFORMACAO LTDA	4096
200.233.64.0/20	AS11921	SECRELNET INFORMATICA LTDA	Unimed Fortaleza Sociedade Cooperativa Médica Ltda	4096
200.194.98.0/23	AS11921	SECRELNET INFORMATICA LTDA	SECRELNET INFORMATICA LTDA	512
201.49.40.0/24	AS11921	SECRELNET INFORMATICA LTDA	SECRELNET INFORMATICA LTDA	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.
% 2026-04-25T09:31:50-03:00 - 134.199.73.89

aut-num:     AS11921
owner:       SECRELNET INFORMATICA LTDA
responsible: Francisco Araujo Lima
owner-c:     WES7
routing-c:   FAL11
abuse-c:     FAL11
created:     19991118
changed:     20130306
inetnum:     200.194.96.0/21
inetnum:     200.194.104.0/21
inetnum:     200.150.128.0/20
inetnum:     200.233.64.0/20
inetnum:     201.49.0.0/18
inetnum:     2804:1470::/32

nic-hdl-br:  WES7
person:      WebMaster SecrelNet
created:     19981209
changed:     20250711

nic-hdl-br:  FAL11
person:      Francisco Araujo Lima
created:     19980413
changed:     20170106

% 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.

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       11921
ASName:         LACNIC-11921
ASHandle:       AS11921
RegDate:        2002-07-27
Updated:        2007-12-17
Comment:        This AS is under LACNIC responsibility for further allocations to
Comment:        users in LACNIC region.
Comment:        Please see http://www.lacnic.net/ for further details, or check the
Comment:        WHOIS server located at http://whois.lacnic.net
Ref:            https://rdap.arin.net/registry/autnum/11921

ResourceLink:  http://lacnic.net/cgi-bin/lacnic/whois
ResourceLink:  whois.lacnic.net


OrgName:        Latin American and Caribbean IP address Regional Registry
OrgId:          LACNIC
Address:        Rambla Republica de Mexico 6125
City:           Montevideo
StateProv:      
PostalCode:     11400
Country:        UY
RegDate:        2002-07-27
Updated:        2018-03-15
Ref:            https://rdap.arin.net/registry/entity/LACNIC

ReferralServer:  whois://whois.lacnic.net
ResourceLink:  http://lacnic.net/cgi-bin/lacnic/whois

OrgTechHandle: LACNIC-ARIN
OrgTechName:   LACNIC Whois Info
OrgTechPhone:  +598-2604-2222 
OrgTechEmail:  whois-contact@lacnic.net
OrgTechRef:    https://rdap.arin.net/registry/entity/LACNIC-ARIN

OrgAbuseHandle: LWI100-ARIN
OrgAbuseName:   LACNIC Whois Info
OrgAbusePhone:  +598-2604-2222 
OrgAbuseEmail:  abuse@lacnic.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/LWI100-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "11921",
    "as_handle" : "AS11921",
    "as_name" : "LACNIC-11921",
    "tech_contacts" : [ "LACNIC-ARIN" ],
    "abuse_contacts" : [ "LWI100-ARIN" ],
    "date_created" : "2002-07-27",
    "date_updated" : "2007-12-17",
    "source" : "https://rdap.arin.net/registry/autnum/11921"
  } ],
  "organization" : {
    "handle" : "LACNIC",
    "name" : "Latin American and Caribbean IP address Regional Registry",
    "address" : [ "Rambla Republica de Mexico 6125", "Montevideo", "11400", "UY" ],
    "street" : "Rambla Republica De Mexico",
    "city" : "Montevideo",
    "zip_code" : "11400",
    "country" : [ "UY" ],
    "date_created" : "2002-07-27",
    "date_updated" : "2018-03-15",
    "source" : "https://rdap.arin.net/registry/entity/LACNIC",
    "addressCountry" : "UY"
  },
  "technical_contacts" : [ {
    "handle" : "LACNIC-ARIN",
    "name" : "LACNIC Whois Info",
    "email" : [ "whois-contact@lacnic.net" ],
    "phone" : [ "+598-2604-2222" ],
    "source" : "https://rdap.arin.net/registry/entity/LACNIC-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "LWI100-ARIN",
    "name" : "LACNIC Whois Info",
    "email" : [ "abuse@lacnic.net" ],
    "phone" : [ "+598-2604-2222" ],
    "source" : "https://rdap.arin.net/registry/entity/LWI100-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS199081	Lancom Ltd.	GR
AS11432	Telium Telecomunicaï¿½ï¿½es Ltda	BR
AS263903	INFORBARRA TELECOM	BR
AS7195	EDGEUNO S.A.S	CO
AS262589	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	BR
AS6939	Hurricane Electric LLC	US
AS60602	Inovare-Prim SRL	MD
AS266142	Bahiadados Telecom Ltda.	BR
AS14537	Continent 8 LLC	US
AS198150	SIACOM JSC	GE

Upstreams

AS Number	Description	Country
AS61832	DB3 SERVICOS DE TELECOMUNICACOES S.A	BR
AS52925	Ascenty Data Centers e Telecomunicações S/A	BR
AS39120	Convergenze S.p.A.	IT
AS12956	TELXIUS Cable	ES
AS7195	EDGEUNO S.A.S	CO
AS6939	Hurricane Electric LLC	US
AS6057	Administracion Nacional de Telecomunicaciones	UY

Downstreams

AS Number	Description	Country
AS262712	HOSTWEB DATA CENTER E SERVICOS LTDA	BR