ASN AS24120 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS24120?

AS24120 is listed under AEMO Australian Energy Market Operator Limited.

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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AS24120 AEMO Australian Energy Market Operator Limited

AEMO Australian Energy Market Operator Limited aemo.com.au

AU 7 Routes

AS Data

AS24120

AS24120 – AEMO Australian Energy Market Operator Limited

AS Number	24120
AS Name	AEMO-INET-AS-AU
Organization	AEMO Australian Energy Market Operator Limited (org-aaem1-ap)
Country	AU
Website	aemo.com.au
Number of IPv4 Routes	7
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS24120 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
202.44.76.0/23	AS24120	AEMO Australian Energy Market Operator Limited	AEMO Australian Energy Market Operator Limited	512
202.44.76.0/24	AS24120	AEMO Australian Energy Market Operator Limited	AEMO Australian Energy Market Operator Limited	256
202.44.79.0/24	AS24120	AEMO Australian Energy Market Operator Limited	AEMO Australian Energy Market Operator Limited	256
202.44.78.0/24	AS24120	AEMO Australian Energy Market Operator Limited	AEMO Australian Energy Market Operator Limited	256
202.44.77.0/24	AS24120	AEMO Australian Energy Market Operator Limited	AEMO Australian Energy Market Operator Limited	256
146.178.9.0/24	AS24120	AEMO Australian Energy Market Operator Limited	AEMO Australian Energy Market Operator Limited	256
202.44.78.0/23	AS24120	AEMO Australian Energy Market Operator Limited	AEMO Australian Energy Market Operator Limited	512

Raw Whois Response

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

% Information related to 'AS23552 - AS24575'

as-block:       AS23552 - AS24575
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
remarks:        AS23889 has been transfered to AfriNIC
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2009-09-29T06:04:16Z
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 'AS24090 - AS24132'

as-block:       AS24090 - AS24132
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:  2008-09-04T06:40:26Z
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 'AS24120'

% Abuse contact for 'AS24120' is 'apnic@aemo.com.au'

aut-num:        AS24120
as-name:        AEMO-INET-AS-AU
descr:          Australian Energy Market Operator LTD
descr:          AEMO is an independent, member based organisation, split between
descr:          government and industry, which develops, plans, and operates an array
descr:          of gas and electricity markets in Australia.
country:        AU
import:         from AS7474 action pref=100; accept ANY
import:         from AS1221 action pref=100; accept ANY
export:         to AS7474 announce AS24120 and {202.44.76.0/22, 202.44.78.0/23}
export:         to AS1221 announce AS24120 and {202.44.76.0/22}
org:            ORG-AAEM1-AP
admin-c:        SU148-AP
tech-c:         PW659-AP
abuse-c:        AA1511-AP
notify:         pelham.whitmore@aemo.com.au
notify:         stephen.unwin@aemo.com.au
mnt-lower:      MAINT-AU-NEMMCO
mnt-routes:     MAINT-AU-NEMMCO
mnt-by:         APNIC-HM
mnt-irt:        IRT-AEMO-NETWORK-SERVICES-AU
last-modified:  2021-06-09T00:39:12Z
source:         APNIC

irt:            IRT-AEMO-NETWORK-SERVICES-AU
address:        GPO Box 2008
address:        Melbourne 3001
e-mail:         tim.saw@aemo.com.au
abuse-mailbox:  apnic@aemo.com.au
admin-c:        SU148-AP
tech-c:         TS1187-AP
auth:           # Filtered
remarks:        apnic@aemo.com.au was validated on 2025-12-10
remarks:        tim.saw@aemo.com.au was validated on 2026-03-02
mnt-by:         MAINT-AU-AEMO
last-modified:  2026-03-10T00:03:55Z
source:         APNIC

organisation:   ORG-AAEM1-AP
org-name:       AEMO - Australian Energy Market Operator Limited
org-type:       LIR
country:        AU
address:        GPO Box 2008S
phone:          +61-3-9648-8777
fax-no:         +61-3-9648-8700
e-mail:         etsnetworkservices@aemo.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:57Z
source:         APNIC

role:           ABUSE AEMONETWORKSERVICESAU
country:        ZZ
address:        GPO Box 2008
address:        Melbourne 3001
phone:          +000000000
e-mail:         tim.saw@aemo.com.au
admin-c:        SU148-AP
tech-c:         TS1187-AP
nic-hdl:        AA1511-AP
remarks:        Generated from irt object IRT-AEMO-NETWORK-SERVICES-AU
remarks:        apnic@aemo.com.au was validated on 2025-12-10
remarks:        tim.saw@aemo.com.au was validated on 2026-03-02
abuse-mailbox:  apnic@aemo.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-02T23:30:22Z
source:         APNIC

person:         Pelham Whitmore
address:        GPO Box 2008
country:        AU
phone:          +61-7-3347-4546
e-mail:         pelham.whitmore@aemo.com.au
nic-hdl:        PW659-AP
mnt-by:         MAINT-AU-AEMO
last-modified:  2019-01-10T03:56:21Z
source:         APNIC

person:         Stephen Unwin
address:        GPO Box 2008
country:        AU
phone:          +61-3-9609-8000
e-mail:         stephen.unwin@aemo.com.au
nic-hdl:        SU148-AP
mnt-by:         MAINT-AU-AEMO
last-modified:  2021-06-09T00:06:29Z
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" : "AS23552 - AS24575",
    "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", "AS23889 has been transfered to AfriNIC" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "APNIC-HM" ],
    "date_updated" : "2009-09-29",
    "source" : "APNIC"
  }, {
    "as_block" : "AS24090 - AS24132",
    "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" : "2008-09-04",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS24120",
    "as_name" : "AEMO-INET-AS-AU",
    "description" : [ "Australian Energy Market Operator LTD", "AEMO is an independent, member based organisation, split between", "government and industry, which develops, plans, and operates an array", "of gas and electricity markets in Australia." ],
    "country" : "AU",
    "import" : [ "from AS7474 action pref=100; accept ANY", "from AS1221 action pref=100; accept ANY" ],
    "export" : [ "to AS7474 announce AS24120 and {202.44.76.0/22, 202.44.78.0/23}", "to AS1221 announce AS24120 and {202.44.76.0/22}" ],
    "organization" : "ORG-AAEM1-AP",
    "admin_contacts" : [ "SU148-AP" ],
    "tech_contacts" : [ "PW659-AP" ],
    "abuse_contacts" : [ "AA1511-AP" ],
    "notify" : [ "pelham.whitmore@aemo.com.au", "stephen.unwin@aemo.com.au" ],
    "mnt_irt" : [ "IRT-AEMO-NETWORK-SERVICES-AU" ],
    "mnt_lower" : [ "MAINT-AU-NEMMCO" ],
    "mnt_routes" : [ "MAINT-AU-NEMMCO" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2021-06-09",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-AEMO-NETWORK-SERVICES-AU",
    "address" : [ "GPO Box 2008", "Melbourne 3001" ],
    "city" : "Melbourne",
    "zip_code" : "3001",
    "email" : [ "tim.saw@aemo.com.au" ],
    "abuse_mailbox" : [ "apnic@aemo.com.au" ],
    "admin_contacts" : [ "SU148-AP" ],
    "tech_contacts" : [ "TS1187-AP" ],
    "remarks" : [ "apnic@aemo.com.au was validated on 2025-12-10", "tim.saw@aemo.com.au was validated on 2026-03-02" ],
    "mnt_by" : [ "MAINT-AU-AEMO" ],
    "date_updated" : "2026-03-10",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-AAEM1-AP",
    "name" : "AEMO - Australian Energy Market Operator Limited",
    "type" : "LIR",
    "address" : [ "GPO Box 2008S" ],
    "country" : [ "AU" ],
    "email" : [ "etsnetworkservices@aemo.com.au" ],
    "phone" : [ "+61-3-9648-8777" ],
    "fax_no" : [ "+61-3-9648-8700" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-09-05",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "SU148-AP",
    "name" : "Stephen Unwin",
    "address" : [ "GPO Box 2008" ],
    "country" : "AU",
    "email" : [ "stephen.unwin@aemo.com.au" ],
    "phone" : [ "+61-3-9609-8000" ],
    "mnt_by" : [ "MAINT-AU-AEMO" ],
    "date_updated" : "2021-06-09",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "PW659-AP",
    "name" : "Pelham Whitmore",
    "address" : [ "GPO Box 2008" ],
    "country" : "AU",
    "email" : [ "pelham.whitmore@aemo.com.au" ],
    "phone" : [ "+61-7-3347-4546" ],
    "mnt_by" : [ "MAINT-AU-AEMO" ],
    "date_updated" : "2019-01-10",
    "source" : "APNIC"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AA1511-AP",
    "name" : "ABUSE AEMONETWORKSERVICESAU",
    "address" : [ "GPO Box 2008", "Melbourne 3001" ],
    "city" : "Melbourne",
    "zip_code" : "3001",
    "country" : "ZZ",
    "email" : [ "tim.saw@aemo.com.au" ],
    "abuse_mailbox" : [ "apnic@aemo.com.au" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "SU148-AP" ],
    "tech_contacts" : [ "TS1187-AP" ],
    "remarks" : [ "Generated from irt object IRT-AEMO-NETWORK-SERVICES-AU", "apnic@aemo.com.au was validated on 2025-12-10", "tim.saw@aemo.com.au was validated on 2026-03-02" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2026-03-02",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS7474	SingTel Optus Pty Ltd	AU
AS1221	Telstra Limited	AU
AS32787	Akamai Technologies, Inc.	US

Upstreams

AS Number	Description	Country
AS7474	SingTel Optus Pty Ltd	AU
AS1221	Telstra Limited	AU
AS32787	Akamai Technologies, Inc.	US

Contacts

Email Contacts

apnic@aemo.com.au stephen.unwin@aemo.com.au pelham.whitmore@aemo.com.au

Abuse Contacts

apnic@aemo.com.au

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