What is ASN AS266434?

ASN AS266434 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS266434?

AS266434 is listed under MASTER DATA TELECOMUNICACOES LTDA ME.

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?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS266434 MASTER DATA TELECOMUNICACOES LTDA ME

ASN Lookup Tool

MASTER DATA TELECOMUNICACOES LTDA ME

UY 1 Routes

AS Data

AS266434

AS266434 – MASTER DATA TELECOMUNICACOES LTDA ME

AS Number	266434
AS Name	LACNIC-ASNBLOCK-262144
Organization	MASTER DATA TELECOMUNICACOES LTDA ME (lacnic)
Country	UY
Number of IPv4 Routes	0
Number of IPv6 Routes	1
ASN type	ISP
Registry	LACNIC
Date Allocated	2006-11-29

ASN Intelligence API for production workflows

Use ASN data for AS266434 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2804:37c0::/32	AS266434	MASTER DATA TELECOMUNICACOES LTDA ME	MASTER DATA TELECOMUNICACOES LTDA - ME	~79×10²⁷

Raw Whois Response

#
# 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:       262144 - 268700
ASName:         LACNIC-ASNBLOCK-262144
ASHandle:       AS262144
RegDate:        2006-11-29
Updated:        2018-03-29
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/262144

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" : "262144 - 268700",
    "as_handle" : "AS262144",
    "as_name" : "LACNIC-ASNBLOCK-262144",
    "tech_contacts" : [ "LACNIC-ARIN" ],
    "abuse_contacts" : [ "LWI100-ARIN" ],
    "date_created" : "2006-11-29",
    "date_updated" : "2018-03-29",
    "source" : "https://rdap.arin.net/registry/autnum/262144"
  } ],
  "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
AS9498	Bharti Airtel Limited	IN
AS6939	Hurricane Electric LLC	US
AS266142	Bahiadados Telecom Ltda.	BR
AS198150	SIACOM JSC	GE
AS14537	Continent 8 LLC	US
AS267256	ONETIS TECNOLOGIA LTDA	BR
AS269416	SEMEAR TELECOM EIRELI	BR
AS271253	LINK BRASIL TELECOMUNICACOES LTDA	BR
AS270052	STARTELECOM S.A.	PY
AS266400	Ferenz Networks	BR
AS22548	Núcleo de Inf. e Coord. do Ponto BR NIC.BR	BR
AS51185	MainStreaming SpA	IT
AS263661	BRASIL DIGITAL SERVIÇOS DE INFORMATICA E COMERCIO	BR
AS60503	FNX Tecnologia LTDA	BR
AS34224	Neterra Ltd.	BG
AS267578	W LINKS INTERNET LTDA	BR
AS206735	Novelcomm LP	GR
AS16552	Tiggee LLC	US
AS268138	Thiago aparecido scaramuzza santana	BR
AS270888	V8 Telecom LTDA	BR
AS263237	PowerHost Telecom SPA	CL
AS61573	IP TELECOM	BR
AS32590	Valve Corporation	US
AS53062	ACESSOLINE TELECOMUNICACOES LTDA	BR
AS57463	NetIX Communications JSC	BG
AS61624	INFNOC TECNOLOGIA LTDA	BR
AS12735	TurkNet Iletisim Hizmetleri A.S.	TR
AS28624	PROVEDORA CMA INTERNET LTDA	BR
AS263541	IMF NETWORK DATA LTDA ME	BR
AS266009	T2WEB SOLUCOES TECNOLOGICAS LTDA	BR
AS60602	Inovare Prim SRL	MD
AS263321	ILOGNET PROVEDOR	BR
AS213622	Falcon FZE LLC	AE
AS262427	Invista Net Provedor de Acesso Ltda	BR
AS52999	START NETWORKS S/A	BR
AS264479	Turbozone Internet	BR
AS24482	SG.GS	SG
AS12741	Netia SA	PL
AS263152	MIGO TELECOM	BR
AS14868	LIGGA SERVICOS EM TELECOM S.A.	BR
AS274676	MULTIWAY COMERCIO E REPRESENTACOES LTDA	BR
AS28634	Life Tecnologia Ltda.	BR
AS266213	PLANETCLICK TELECOMUNICACOES LTDA	BR
AS264409	Huge Solucoes Corporativas Ltda	BR
AS132337	AXCLUSIVE PTE. LTD.	SG
AS269641	RURALNET BRASIL	BR
AS28140	G2G INTERNET E SERVICOS DE TELECOM LTDA	BR
AS268976	Weclix Telecom S/A	BR
AS262791	NETWAY SVA LTDA	BR
AS269115	TELECOM PROVEDORES E REDES DE COMUNICAÇÃO	BR
AS39120	Convergenze S.p.A.	IT
AS28300	Speed Serviços de Internet Ltda	BR
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS52468	UFINET PANAMA S.A.	PA
AS269783	WIND NET S.A.	PY
AS262462	Aranet Play	BR
AS269180	VIPNET Conexão	BR
AS269053	3WACCES ME	BR
AS35280	F5 Networks SARL	FR

Upstreams

AS Number	Description	Country
AS16735	ALGAR TELECOM S/A	BR
AS6939	Hurricane Electric LLC	US
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS137409	GSL Networks Pty LTD	AU

Downstreams

AS Number	Description	Country
AS267578	W LINKS INTERNET LTDA	BR

Contacts

Email Contacts

whois-contact@lacnic.net

Abuse Contacts

abuse@lacnic.net