ASN AS11237 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS11237?

AS11237 is listed under UNIVERSIDAD EAFIT.

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.

AS11237 UNIVERSIDAD EAFIT | IPGeolocation.io

ASN Lookup Tool

UNIVERSIDAD EAFIT eafit.edu.co

CO 3 Routes

AS Data

AS11237

AS11237 – UNIVERSIDAD EAFIT

AS Number	11237
AS Name	CO-UNEA-LACNIC
Organization	UNIVERSIDAD EAFIT
Country	CO
Website	eafit.edu.co
Number of IPv4 Routes	2
Number of IPv6 Routes	1
ASN type	EDUCATION
Registry	lacnic
Date Allocated	1998-05-26

ASN Intelligence API for production workflows

Use ASN data for AS11237 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2800:b70:49::/48	AS11237	UNIVERSIDAD EAFIT	LIBERTY NETWORKS DE COLOMBIA S.A.S	~1×10²⁴
200.12.176.0/20	AS11237	UNIVERSIDAD EAFIT	UNIVERSIDAD EAFIT	4096
200.12.188.0/24	AS11237	UNIVERSIDAD EAFIT	UNIVERSIDAD EAFIT	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.
%  2026-04-05 09:32:53 (-03 -03:00)

aut-num:     AS11237
owner:       UNIVERSIDAD EAFIT
ownerid:     CO-UNEA-LACNIC
responsible: Juan Fernando Acevedo Ospina
address:     Carrera 49, 7 Sur, 50
address:     3300 - Medellin - An
country:     CO
phone:       +57  42619500 [9574]
owner-c:     JAH
routing-c:   JAH
abuse-c:     JAH
created:     19980526
changed:     20040315

nic-hdl:     JAH
person:      Infraestructura Tecnológica EAFIT
e-mail:      internet@eafit.edu.co
address:     Carrera 49, 7 Sur, 50
address:     3300 - Medellin - AN
country:     CO
phone:       +57  6042619500 [9574]
created:     20040120
changed:     20220613

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


#
# 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:       11237
ASName:         LACNIC-11237
ASHandle:       AS11237
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/11237

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" : "11237",
    "as_handle" : "AS11237",
    "as_name" : "LACNIC-11237",
    "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/11237"
  } ],
  "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
AS262589	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	BR
AS18678	INTERNEXA S.A. E.S.P	CO
AS262191	LIBERTY NETWORKS DE COLOMBIA S.A.S	CO

Upstreams

AS Number	Description	Country
AS262589	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	BR
AS18678	INTERNEXA S.A. E.S.P	CO
AS262191	LIBERTY NETWORKS DE COLOMBIA S.A.S	CO