211.31.52.0/22

AS4804 · Microplex PTY LTD

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Summary

Country	Australia
Domain	optus.net.au
ASN	AS4804
Parent Range	211.28.0.0/14
Registry	APNIC
ID	OPTUSINTERNET-AU

WHOIS Details

inetnum:        211.28.0.0 - 211.31.255.255
netname:        OPTUSINTERNET-AU
descr:          OPTUS INTERNET - RETAIL
descr:          INTERNET SERVICES
descr:          Chatswood, Sydney
country:        AU
org:            ORG-OIPL5-AP
admin-c:        OI3-AP
tech-c:         OI3-AP
abuse-c:        AO400-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-AU-OPTUSINTERNET
mnt-routes:     MAINT-AU-OPTUSINTERNET
mnt-irt:        IRT-OPTUSINTERNET-AU
last-modified:  2024-02-05T08:16:29Z
source:         APNIC

irt:            IRT-OPTUSINTERNET-AU
address:        1 Lyonpark Rd.
address:        Macquarie Park, NSW 2113
e-mail:         abuse@optusnet.com.au
abuse-mailbox:  abuse@optusnet.com.au
admin-c:        OI3-AP
tech-c:         OI3-AP
auth:           # Filtered
remarks:        abuse@optusnet.com.au was validated on 2025-06-18
mnt-by:         MAINT-AU-OPTUSINTERNET
last-modified:  2025-06-18T01:06:29Z
source:         APNIC

organisation:   ORG-OIPL5-AP
org-name:       Optus Internet Pty Ltd
org-type:       LIR
country:        AU
address:        Building F, 3rd Floor
address:        1 Lyonpark Road
phone:          +61-2-8087-0020
fax-no:         +61-2-8085-5108
e-mail:         abuse@optusnet.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:50Z
source:         APNIC

role:           ABUSE OPTUSINTERNETAU
country:        ZZ
address:        1 Lyonpark Rd.
address:        Macquarie Park, NSW 2113
phone:          +000000000
e-mail:         abuse@optusnet.com.au
admin-c:        OI3-AP
tech-c:         OI3-AP
nic-hdl:        AO400-AP
remarks:        Generated from irt object IRT-OPTUSINTERNET-AU
remarks:        abuse@optusnet.com.au was validated on 2025-06-18
abuse-mailbox:  abuse@optusnet.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-06-18T01:06:46Z
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

route:          211.28.0.0/14
origin:         AS4804
descr:          Optus Internet Pty Ltd Building F, 3rd Floor 1 Lyonpark Road
mnt-by:         MAINT-AU-OPTUSINTERNET
last-modified:  2024-02-05T08:47:53Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 211.31.52.0/22

Range	ASN	Company	Num of IPs
211.28.0.0/14	AS4804	OPTUS INTERNET - RETAIL	262,144

Nearby Ranges

BGP prefixes that overlap with 211.31.0.0/16

Range	ASN	Company	Num of IPs
211.28.0.0/14	AS4804	OPTUS INTERNET - RETAIL	262,144

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
105.99.6.246	AS36947 Telecom Algeria	11.59ms from Algiers, DZ
46.166.182.22	AS43350 NForce Entertainment B.V.	0.62ms from Amsterdam, NL
92.254.68.102	AS50266 Odido Netherlands B.V.	2.27ms from Amsterdam, NL
142.44.192.118	AS16276 OVH SAS	0.06ms from Beauharnois, CA
99.89.236.22	AS7018 AT&T Enterprises, LLC	4.62ms from Miami, US
99.27.53.102	AS7018 AT&T Enterprises, LLC	2.87ms from Miami, US
96.69.10.246	AS7922 Comcast Cable Communications, LLC	5.39ms from Miami, US
180.30.10.6	AS4713 NTT Communications Corporation	8.23ms from Osaka, JP
60.42.86.38	AS4713 NTT Communications Corporation	3.83ms from Osaka, JP
52.67.161.166	AS16509 Amazon.com, Inc.	0.17ms from Osasco, BR
38.3.221.134	AS273254 SIGLO REDES DE MEXICO SAPI DE C.V	4.63ms from Santiago de Queretaro, MX
210.244.200.182	AS7478 Mackay Telecommunication Inc.	1.21ms from Taipei, TW
222.156.85.198	AS7482 Asia Pacific On-line Service Inc.	8.04ms from Taipei, TW
24.184.22.86	AS6128 Cablevision Systems Corp.	8.57ms from New York City, US
125.130.179.22	AS4766 Korea Telecom	1.50ms from Seoul, KR
14.79.192.6	AS4766 Korea Telecom	6.92ms from Seoul, KR
92.100.78.86	AS12389 PJSC Rostelecom	9.86ms from Stockholm, SE
186.108.224.118	AS7303 Telecom Argentina S.A.	7.29ms from Asuncion, PY
123.20.153.70	AS45899 VNPT Corp	1.39ms from Ho Chi Minh City, VN
115.18.226.182	AS4766 Korea Telecom	6.96ms from Seoul, KR
158.109.15.134	AS13041 Consorci de Serveis Universitaris de Catalunya	6.83ms from Zaragoza, ES
131.181.0.214	AS7575 Australian Academic and Research Network (AARNet)	0.56ms from Brisbane, AU
190.55.7.214	AS27747 Telecentro S.A.	4.70ms from Buenos Aires, AR
128.230.2.86	AS11872 Syracuse University	3.38ms from Buffalo, US
86.52.230.198	AS39642 Norlys Digital A/S	16.48ms from Copenhagen, DK

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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