What is ASN AS133600?

ASN AS133600 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS133600?

AS133600 is listed under ESSEC.

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.

AS133600 ESSEC | IPGeolocation.io

ASN Lookup Tool

ESSEC essec.edu

SG 1 Routes

AS Data

AS133600

AS133600 – ESSEC

AS Number	133600
AS Name	ESSEC-AS-AP
Organization	ESSEC (org-ea1-ap)
Country	SG
Website	essec.edu
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS133600 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
103.237.142.0/24	AS133600	ESSEC	ESSEC	256

Raw Whois Response

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS133120 - AS133631'

as-block:       AS133120 - AS133631
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2013-09-11T23:52:15Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS133600'

% Abuse contact for 'AS133600' is 'silva@essec.edu'

aut-num:        AS133600
as-name:        ESSEC-AS-AP
descr:          ESSEC
country:        SG
org:            ORG-EA1-AP
admin-c:        EBSA1-AP
tech-c:         EBSA1-AP
abuse-c:        AE230-AP
mnt-lower:      MAINT-ESSEC-SG
mnt-routes:     MAINT-ESSEC-SG
mnt-by:         APNIC-HM
mnt-irt:        IRT-ESSEC-SG
last-modified:  2020-06-22T07:24:35Z
source:         APNIC

irt:            IRT-ESSEC-SG
address:        2 One-North Gateway, Singapore 138502, Singapore
e-mail:         silva@essec.edu
abuse-mailbox:  silva@essec.edu
admin-c:        EBSA1-AP
tech-c:         EBSA1-AP
auth:           # Filtered
remarks:        silva@essec.edu was validated on 2026-02-24
mnt-by:         MAINT-ESSEC-SG
last-modified:  2026-02-24T13:10:33Z
source:         APNIC

organisation:   ORG-EA1-AP
org-name:       ESSEC
org-type:       LIR
country:        SG
address:        5 Nepal Park, Singapore 139408
phone:          +33-01.34.43.30.96
e-mail:         silva@essec.edu
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:24Z
source:         APNIC

role:           ABUSE ESSECSG
country:        ZZ
address:        2 One-North Gateway, Singapore 138502, Singapore
phone:          +000000000
e-mail:         silva@essec.edu
admin-c:        EBSA1-AP
tech-c:         EBSA1-AP
nic-hdl:        AE230-AP
remarks:        Generated from irt object IRT-ESSEC-SG
remarks:        silva@essec.edu was validated on 2026-02-24
abuse-mailbox:  silva@essec.edu
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-24T13:10:42Z
source:         APNIC

role:           ESSEC Business School administrator
address:        2 One-North Gateway, Singapore 138502, Singapore
country:        SG
phone:          +33-01.34.43.30.96
fax-no:         +33-01.34.43.30.96
e-mail:         silva@essec.edu
admin-c:        EBSA1-AP
tech-c:         EBSA1-AP
nic-hdl:        EBSA1-AP
mnt-by:         MAINT-ESSEC-SG
last-modified:  2014-07-15T23:20:35Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS133120 - AS133631",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "HM20-AP" ],
    "tech_contacts" : [ "HM20-AP" ],
    "remarks" : [ "These AS numbers are further assigned by APNIC", "to APNIC members and end-users in the APNIC region" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "APNIC-HM" ],
    "date_updated" : "2013-09-11",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS133600",
    "as_name" : "ESSEC-AS-AP",
    "description" : [ "ESSEC" ],
    "country" : "SG",
    "organization" : "ORG-EA1-AP",
    "admin_contacts" : [ "EBSA1-AP" ],
    "tech_contacts" : [ "EBSA1-AP" ],
    "abuse_contacts" : [ "AE230-AP" ],
    "mnt_irt" : [ "IRT-ESSEC-SG" ],
    "mnt_lower" : [ "MAINT-ESSEC-SG" ],
    "mnt_routes" : [ "MAINT-ESSEC-SG" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2020-06-22",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-ESSEC-SG",
    "address" : [ "2 One-North Gateway, Singapore 138502, Singapore" ],
    "street" : "One-north Gateway",
    "city" : "Singapore",
    "zip_code" : "138502",
    "country" : "SINGAPORE",
    "email" : [ "silva@essec.edu" ],
    "abuse_mailbox" : [ "silva@essec.edu" ],
    "admin_contacts" : [ "EBSA1-AP" ],
    "tech_contacts" : [ "EBSA1-AP" ],
    "remarks" : [ "silva@essec.edu was validated on 2026-02-24" ],
    "mnt_by" : [ "MAINT-ESSEC-SG" ],
    "date_updated" : "2026-02-24",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-EA1-AP",
    "name" : "ESSEC",
    "type" : "LIR",
    "address" : [ "5 Nepal Park, Singapore 139408" ],
    "street" : "Nepal Park",
    "city" : "Singapore",
    "zip_code" : "139408",
    "country" : [ "SG" ],
    "email" : [ "silva@essec.edu" ],
    "phone" : [ "+33-01.34.43.30.96" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-09-05",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "EBSA1-AP",
    "name" : "ESSEC Business School administrator",
    "address" : [ "2 One-North Gateway, Singapore 138502, Singapore" ],
    "street" : "One-north Gateway",
    "city" : "Singapore",
    "zip_code" : "138502",
    "country" : "SG",
    "email" : [ "silva@essec.edu" ],
    "phone" : [ "+33-01.34.43.30.96" ],
    "fax_no" : [ "+33-01.34.43.30.96" ],
    "admin_contacts" : [ "EBSA1-AP" ],
    "tech_contacts" : [ "EBSA1-AP" ],
    "mnt_by" : [ "MAINT-ESSEC-SG" ],
    "date_updated" : "2014-07-15",
    "source" : "APNIC",
    "addressCountry" : "SINGAPORE"
  } ],
  "technical_contacts" : [ {
    "handle" : "EBSA1-AP",
    "name" : "ESSEC Business School administrator",
    "address" : [ "2 One-North Gateway, Singapore 138502, Singapore" ],
    "street" : "One-north Gateway",
    "city" : "Singapore",
    "zip_code" : "138502",
    "country" : "SG",
    "email" : [ "silva@essec.edu" ],
    "phone" : [ "+33-01.34.43.30.96" ],
    "fax_no" : [ "+33-01.34.43.30.96" ],
    "admin_contacts" : [ "EBSA1-AP" ],
    "tech_contacts" : [ "EBSA1-AP" ],
    "mnt_by" : [ "MAINT-ESSEC-SG" ],
    "date_updated" : "2014-07-15",
    "source" : "APNIC",
    "addressCountry" : "SINGAPORE"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AE230-AP",
    "name" : "ABUSE ESSECSG",
    "address" : [ "2 One-North Gateway, Singapore 138502, Singapore" ],
    "street" : "One-north Gateway",
    "city" : "Singapore",
    "zip_code" : "138502",
    "country" : "ZZ",
    "email" : [ "silva@essec.edu" ],
    "abuse_mailbox" : [ "silva@essec.edu" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "EBSA1-AP" ],
    "tech_contacts" : [ "EBSA1-AP" ],
    "remarks" : [ "Generated from irt object IRT-ESSEC-SG", "silva@essec.edu was validated on 2026-02-24" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2026-02-24",
    "source" : "APNIC",
    "addressCountry" : "SINGAPORE"
  } ]
}

Peers

AS Number	Description	Country
AS133136	MYREPUBLIC LIMITED	SG
AS133136	MyRepublic Ltd.	SG

Upstreams

AS Number	Description	Country
AS133136	MYREPUBLIC LIMITED	SG

Contacts

Email Contacts

silva@essec.edu

Abuse Contacts