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.

AS265866 CORTEZ RAUL OMAR ZETRO INTERNET

Q: Why is WHOIS data shown for an ASN?

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

ASN Lookup Tool

CORTEZ RAUL OMAR ZETRO INTERNET zetro.com.ar

AR 4 Routes

AS Data

AS265866

AS265866 – CORTEZ RAUL OMAR ZETRO INTERNET

AS Number	265866
AS Name	AR-CROZ-LACNIC
Organization	CORTEZ RAUL OMAR ZETRO INTERNET()
Country	AR
Website	zetro.com.ar
Number of IPv4 Routes	4
Number of IPv6 Routes	0
ASN type	ISP
Registry	lacnic
Date Allocated	2017-11-06

ASN Intelligence API for production workflows

Use ASN data for AS265866 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
45.226.225.0/24	AS265866	CORTEZ RAUL OMAR ZETRO INTERNET	CORTEZ RAUL OMAR (ZETRO INTERNET)	256
45.226.224.0/24	AS265866	CORTEZ RAUL OMAR ZETRO INTERNET	CORTEZ RAUL OMAR (ZETRO INTERNET)	256
45.226.226.0/24	AS265866	CORTEZ RAUL OMAR ZETRO INTERNET	CORTEZ RAUL OMAR (ZETRO INTERNET)	256
45.226.227.0/24	AS265866	CORTEZ RAUL OMAR ZETRO INTERNET	CORTEZ RAUL OMAR (ZETRO INTERNET)	256

Raw Whois Response

% Joint Whois - whois.lacnic.net
%  This server accepts single ASN, IPv4 or IPv6 queries

% LACNIC resource: whois.lacnic.net


% Copyright LACNIC lacnic.net
%  The data below is provided for information purposes
%  and to assist persons in obtaining information about or
%  related to AS and IP numbers registrations
%  By submitting a whois query, you agree to use this data
%  only for lawful purposes.
%  2026-03-12 07:59:37 (-03 -03:00)

aut-num:     AS265866
owner:       CORTEZ RAUL OMAR (ZETRO INTERNET)
ownerid:     AR-CROZ-LACNIC
responsible: Raul Cortez
address:     Av. Aberastain 559 Pocito AR, , 
address:     5427 - Pocito - SJ
country:     AR
phone:       +54 264 5679446
owner-c:     RAC107
routing-c:   RAC107
abuse-c:     RAC107
created:     20171106
changed:     20171107

nic-hdl:     RAC107
person:      Raul Cortez
e-mail:      raulcortez@zetro.com.ar
address:     Av. Aberastain, 559, Entre Calle 13 y 14
address:     5427 - Pocito - San Juan
country:     AR
phone:       +54  2645679446
created:     20170614
changed:     20221103

% whois.lacnic.net accepts only direct match queries.
% Types of queries are: POCs, ownerid, CIDR blocks, IP
% and AS numbers.

Parsed Whois Response

Peers

AS Number	Description	Country
AS61553	CABASE Camara Arg de Base de Datos y Serv en Linea	AR
AS267833	CASELLES COSTA FACUNDO JAVIER ONPOWER	AR
AS267833	CASELLES COSTA FACUNDO JAVIER (ONPOWER)	AR
AS272925	SAN JUAN INNOVA S.E.	AR

Upstreams

AS Number	Description	Country
AS61553	CABASE Camara Arg de Base de Datos y Serv en Linea	AR
AS267833	CASELLES COSTA FACUNDO JAVIER ONPOWER	AR
AS272925	SAN JUAN INNOVA S.E.	AR

Frequently Asked Questions

What is ASN AS265866?

ASN AS265866 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS265866?

AS265866 is listed under CORTEZ RAUL OMAR ZETRO INTERNET.

What do peers, upstreams, and downstreams mean?

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 included here?

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

How can I access full ASN table data?

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.