ASN AS4804 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS4804?

AS4804 is listed under Microplex PTY LTD.

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.

AS4804 Microplex PTY LTD | IPGeolocation.io

ASN Lookup Tool

Microplex PTY LTD mpx.com.au

AU 396 Routes

AS Data

AS4804

AS4804 – Microplex PTY LTD

AS Number	4804
AS Name	MPX-AS
Organization	Microplex PTY LTD (org-sopl2-ap)
Country	AU
Website	mpx.com.au
Number of IPv4 Routes	285
Number of IPv6 Routes	111
ASN type	ISP
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS4804 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
49.183.128.0/17	AS4804	Microplex PTY LTD	Optus Internet Pty Ltd	32768
2405:dc00:ec45::/48	AS4804	Microplex PTY LTD	Optus Internet Pty Ltd	~1×10²⁴
58.106.212.0/22	AS4804	Microplex PTY LTD	Optus Internet Pty Ltd	1024
122.108.0.0/16	AS4804	Microplex PTY LTD	Optus Internet Pty Ltd	65536
58.145.144.0/21	AS4804	Microplex PTY LTD	Optus Internet Pty Ltd	2048
203.164.64.0/19	AS4804	Microplex PTY LTD	Optus Internet Pty Ltd	8192
210.49.136.0/24	AS4804	Microplex PTY LTD	Optus Internet Pty Ltd	256
210.49.80.0/20	AS4804	Microplex PTY LTD	Optus Internet Pty Ltd	4096
61.88.186.0/24	AS4804	Microplex PTY LTD	SingTel Optus Pty Ltd	256
175.32.0.0/13	AS4804	Microplex PTY LTD	Optus Internet Pty Ltd	524288

Raw Whois Response

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

% Information related to 'AS4608 - AS4865'

as-block:       AS4608 - AS4865
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:  2019-05-20T03:52:26Z
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 'AS4804'

% Abuse contact for 'AS4804' is 'abuse@optusnet.com.au'

aut-num:        AS4804
as-name:        MPX-AS
descr:          Microplex PTY LTD
descr:          Australia Border AS
country:        AU
import:         from AS7474 action pref=100; accept ANY
export:         to AS7474 announce AS4804
default:        to AS7474 action pref=100; networks ANY
org:            ORG-SOPL2-AP
admin-c:        MP16-AP
tech-c:         OI3-AP
abuse-c:        AO399-AP
mnt-lower:      MPX-NOC
mnt-routes:     MPX-NOC
mnt-by:         APNIC-HM
mnt-irt:        IRT-OPTUSCOM-AU
last-modified:  2021-01-15T01:44:57Z
source:         APNIC

irt:            IRT-OPTUSCOM-AU
address:        SingTel Optus Pty Ltd
address:        Optus Macquarie Park (OCS)
address:        1 Lyonpark Road
address:        Macquarie Park NSW 2113
e-mail:         abuse@optusnet.com.au
abuse-mailbox:  abuse@optusnet.com.au
admin-c:        OA3-AP
tech-c:         OA3-AP
auth:           # Filtered
remarks:        abuse@optusnet.com.au was validated on 2025-12-23
mnt-by:         MAINT-OPTUSCOM-AP
last-modified:  2026-02-16T00:08:15Z
source:         APNIC

organisation:   ORG-SOPL2-AP
org-name:       SingTel Optus Pty Ltd
org-type:       LIR
country:        AU
address:        Optus Macquarie Park (OCS)
address:        1 Lyonpark Road, Macquarie Park
phone:          +61-2-8082-7800
fax-no:         +61-2-8082-7100
e-mail:         irr-admin@optus.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-09-25T13:05:45Z
source:         APNIC

role:           ABUSE OPTUSCOMAU
country:        ZZ
address:        SingTel Optus Pty Ltd
address:        Optus Macquarie Park (OCS)
address:        1 Lyonpark Road
address:        Macquarie Park NSW 2113
phone:          +000000000
e-mail:         abuse@optusnet.com.au
admin-c:        OA3-AP
tech-c:         OA3-AP
nic-hdl:        AO399-AP
remarks:        Generated from irt object IRT-OPTUSCOM-AU
remarks:        abuse@optusnet.com.au was validated on 2025-12-23
abuse-mailbox:  abuse@optusnet.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-23T22:44:48Z
source:         APNIC

role:           Optus Internet
address:        1 Lyonpark Rd.
address:        Macquarie Park, NSW 2113
country:        AU
phone:          +61-2-8082 7800
fax-no:         +61-2-8082 7100
e-mail:         ipadmin@optus.net.au
admin-c:        OI1-AP
tech-c:         OI1-AP
nic-hdl:        OI3-AP
notify:         ipadmin@optus.net.au
mnt-by:         MAINT-AU-OPTUSINTERNET
remarks:        send spam/abuse reports to abuse@optusnet.com.au
remarks:        please use http://wq.apnic.net/apnic-bin/whois.pl
remarks:        to identify networks before sending reports and
remarks:        always include full headers/logs.
last-modified:  2021-09-07T23:35:56Z
source:         APNIC

person:         Matt Perkins
address:        58 Atchison st
address:        St Leonards, 1590
country:        AU
phone:          +61-2-96413555
fax-no:         +61-2-99062326
e-mail:         matt@mpx.com.au
nic-hdl:        MP16-AP
mnt-by:         MPX-NOC
remarks:        hostmaster@apnic.net 981029
last-modified:  2011-11-09T00:04:18Z
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" : "AS4608 - AS4865",
    "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" : "2019-05-20",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS4804",
    "as_name" : "MPX-AS",
    "description" : [ "Microplex PTY LTD", "Australia Border AS" ],
    "country" : "AU",
    "import" : [ "from AS7474 action pref=100; accept ANY" ],
    "export" : [ "to AS7474 announce AS4804" ],
    "default" : [ "to AS7474 action pref=100; networks ANY" ],
    "organization" : "ORG-SOPL2-AP",
    "admin_contacts" : [ "MP16-AP" ],
    "tech_contacts" : [ "OI3-AP" ],
    "abuse_contacts" : [ "AO399-AP" ],
    "mnt_irt" : [ "IRT-OPTUSCOM-AU" ],
    "mnt_lower" : [ "MPX-NOC" ],
    "mnt_routes" : [ "MPX-NOC" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2021-01-15",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-OPTUSCOM-AU",
    "address" : [ "SingTel Optus Pty Ltd", "Optus Macquarie Park (OCS)", "1 Lyonpark Road", "Macquarie Park NSW 2113" ],
    "street" : "Lyonpark Road",
    "state" : "NSW",
    "zip_code" : "2113",
    "email" : [ "abuse@optusnet.com.au" ],
    "abuse_mailbox" : [ "abuse@optusnet.com.au" ],
    "admin_contacts" : [ "OA3-AP" ],
    "tech_contacts" : [ "OA3-AP" ],
    "remarks" : [ "abuse@optusnet.com.au was validated on 2025-12-23" ],
    "mnt_by" : [ "MAINT-OPTUSCOM-AP" ],
    "date_updated" : "2026-02-16",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-SOPL2-AP",
    "name" : "SingTel Optus Pty Ltd",
    "type" : "LIR",
    "address" : [ "Optus Macquarie Park (OCS)", "1 Lyonpark Road, Macquarie Park" ],
    "street" : "Lyonpark Road",
    "country" : [ "AU" ],
    "email" : [ "irr-admin@optus.com.au" ],
    "phone" : [ "+61-2-8082-7800" ],
    "fax_no" : [ "+61-2-8082-7100" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2025-09-25",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "MP16-AP",
    "name" : "Matt Perkins",
    "address" : [ "58 Atchison st", "St Leonards, 1590" ],
    "street" : "Atchison St",
    "city" : "St Leonards",
    "zip_code" : "1590",
    "country" : "AU",
    "email" : [ "matt@mpx.com.au" ],
    "phone" : [ "+61-2-96413555" ],
    "fax_no" : [ "+61-2-99062326" ],
    "remarks" : [ "hostmaster@apnic.net 981029" ],
    "mnt_by" : [ "MPX-NOC" ],
    "date_updated" : "2011-11-09",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "OI3-AP",
    "name" : "Optus Internet",
    "address" : [ "1 Lyonpark Rd.", "Macquarie Park, NSW 2113" ],
    "street" : "Lyonpark Rd.",
    "state" : "NSW",
    "zip_code" : "2113",
    "country" : "AU",
    "email" : [ "ipadmin@optus.net.au" ],
    "phone" : [ "+61-2-8082 7800" ],
    "fax_no" : [ "+61-2-8082 7100" ],
    "admin_contacts" : [ "OI1-AP" ],
    "tech_contacts" : [ "OI1-AP" ],
    "remarks" : [ "send spam/abuse reports to abuse@optusnet.com.au", "please use http://wq.apnic.net/apnic-bin/whois.pl", "to identify networks before sending reports and", "always include full headers/logs." ],
    "notify" : [ "ipadmin@optus.net.au" ],
    "mnt_by" : [ "MAINT-AU-OPTUSINTERNET" ],
    "date_updated" : "2021-09-07",
    "source" : "APNIC"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AO399-AP",
    "name" : "ABUSE OPTUSCOMAU",
    "address" : [ "SingTel Optus Pty Ltd", "Optus Macquarie Park (OCS)", "1 Lyonpark Road", "Macquarie Park NSW 2113" ],
    "street" : "Lyonpark Road",
    "state" : "NSW",
    "zip_code" : "2113",
    "country" : "ZZ",
    "email" : [ "abuse@optusnet.com.au" ],
    "abuse_mailbox" : [ "abuse@optusnet.com.au" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "OA3-AP" ],
    "tech_contacts" : [ "OA3-AP" ],
    "remarks" : [ "Generated from irt object IRT-OPTUSCOM-AU", "abuse@optusnet.com.au was validated on 2025-12-23" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2025-12-23",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS7474	SingTel Optus Pty Ltd	AU
AS6453	TATA COMMUNICATIONS AMERICA INC	US
AS17719	SingTel Optus Pty Ltd	AU
AS20940	Akamai International B.V.	NL
AS6453	TATA COMMUNICATIONS (AMERICA) INC	US

Upstreams

AS Number	Description	Country
AS7474	SingTel Optus Pty Ltd	AU
AS6453	TATA COMMUNICATIONS AMERICA INC	US
AS17719	SingTel Optus Pty Ltd	AU

Downstreams

AS Number	Description	Country
AS20940	Akamai International B.V.	NL

Contacts

Email Contacts

matt@mpx.com.au ipadmin@optus.net.au

Abuse Contacts

abuse@optusnet.com.au