203.173.0.0/20

AS4739  ·  Internode Pty Ltd

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Summary

Country Australia
Domain iinet.net.au
ASN AS4739
Registry APNIC
ID IINET-AU

WHOIS Details

inetnum:        203.173.0.0 - 203.173.63.255
netname:        IINET-AU
descr:          iiNet Limited
descr:          Level 6, 263 Adelaide Terrace
descr:          Perth
country:        AU
org:            ORG-IL1-AP
admin-c:        IH207-AP
tech-c:         IH207-AP
abuse-c:        AI376-AP
status:         ALLOCATED PORTABLE
remarks:        ----------------------------------------
remarks:        Send abuse reports to [email protected]
remarks:        ----------------------------------------
remarks:        203.173.0.0/18 migrated from Tas Access
remarks:        ---------------------------------------------------
remarks:        This object can only be modified by APNIC hostmaster
remarks:        If you wish to modify this object details please
remarks:        send email to [email protected] with your organisation
remarks:        account name in the subject line.
remarks:        ----------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-AU-IH207-AP
mnt-irt:        IRT-IINET-AU
last-modified:  2020-06-03T13:04:10Z
source:         APNIC

irt:            IRT-IINET-AU
address:        iiNet Limited
address:        Level 9, 250 St Georges Tce
address:        Perth
address:        WA 6000
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        IH207-AP
tech-c:         IH207-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-10-30
mnt-by:         MAINT-AU-IH207-AP
last-modified:  2025-10-30T06:56:09Z
source:         APNIC

organisation:   ORG-IL1-AP
org-name:       iiNet Limited
org-type:       LIR
country:        AU
address:        502 Hay St
phone:          +61-8-9214-2222
fax-no:         +61-8-9214-2211
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:51Z
source:         APNIC

role:           ABUSE IINETAU
country:        ZZ
address:        iiNet Limited
address:        Level 9, 250 St Georges Tce
address:        Perth
address:        WA 6000
phone:          +000000000
e-mail:         [email protected]
admin-c:        IH207-AP
tech-c:         IH207-AP
nic-hdl:        AI376-AP
remarks:        Generated from irt object IRT-IINET-AU
remarks:        [email protected] was validated on 2025-10-30
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-30T06:56:20Z
source:         APNIC

person:         iiNet Hostmaster
nic-hdl:        IH207-AP
e-mail:         [email protected]
address:        iiNet Limited
address:        Level 9, 250 St Georges Tce
address:        Perth
address:        WA 6000
country:        AU
phone:          +61-8-9214-2222
fax-no:         +61-8-9214-2211
mnt-by:         MAINT-AU-IH207-AP
last-modified:  2011-12-22T05:14:51Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.173.0.0/16

Range ASN Company Num of IPs
203.173.128.0/17 AS9500 One New Zealand Group Limited 32,768
203.173.96.0/19 AS202736 ILINKKOREA 8,192
203.173.96.0/19 AS38676 ILINKKOREA 8,192
203.173.96.0/19 AS216425 ILINKKOREA 8,192
203.173.64.0/20 AS17977 NF Park Bldg.3F, 9-15, Futaba 2-Chome 4,096
203.173.80.0/21 AS38715 Foresightwave INC. 2,048
203.173.95.0/24 AS18059 BUANTER-NET 256
203.173.111.0/24 AS216425 ILINKKOREAS 256
203.173.94.0/24 AS18059 BUANTER-NET 256
203.173.125.0/24 AS38676 RED MOUSE 256
203.173.93.0/24 AS18059 BUANTER-NET 256
203.173.106.0/24 AS395793 ILINKKOREAS 256
203.173.115.0/24 AS202736 ILINKKOREAS 256
203.173.92.0/24 AS18059 BUANTER-NET 256

Hosted domains

There are 13 domain names hosted across 8 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.173.10.216 humpshunt.com.au 2
203.173.10.178 datalytics.com.au 1
203.173.10.112 subshock.net 1
203.173.3.106 rapanea.com 1
203.173.4.205 sandjblack.net 1

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

Pingable IPs

1,113 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
203.173.7.58 AS4739 Internode Pty Ltd 11.09ms from Melbourne, AU
203.173.2.226 AS4739 Internode Pty Ltd 11.10ms from Melbourne, AU
203.173.3.96 AS4739 Internode Pty Ltd 11.12ms from Melbourne, AU
203.173.1.72 AS4739 Internode Pty Ltd 11.22ms from Adelaide, AU
203.173.5.45 AS4739 Internode Pty Ltd 10.90ms from Melbourne, AU
203.173.4.108 AS4739 Internode Pty Ltd 10.75ms from Melbourne, AU
203.173.6.203 AS4739 Internode Pty Ltd 11.02ms from Melbourne, AU
203.173.10.56 AS4739 Internode Pty Ltd 4.88ms from Sydney, AU
203.173.0.9 AS4739 Internode Pty Ltd 10.65ms from Melbourne, AU

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
184.15.241.116 AS5650 Frontier Communications of America, Inc. 7.46ms from Ashburn, US
23.35.50.68 AS16625 Akamai Technologies, Inc. 0.10ms from Auckland, NZ
167.7.151.116 AS2939 State of South Carolina 3.20ms from Charlotte, US
213.252.2.4 AS12907 ip&more GmbH 5.84ms from Ljubljana, SI
75.206.3.212 AS6167 Verizon Business 15.58ms from Miami, US
109.8.163.36 AS15557 Societe Francaise Du Radiotelephone - SFR SA 11.89ms from Paris, FR
221.1.126.68 AS4837 CHINA UNICOM China169 Backbone 5.81ms from Qingdao, CN
27.197.28.4 AS4837 CHINA UNICOM China169 Backbone 4.86ms from Qingdao, CN
100.30.214.132 AS14618 Amazon.com, Inc. 0.61ms from Reston, US
3.85.1.132 AS14618 Amazon.com, Inc. 0.17ms from Reston, US
68.121.164.68 AS7018 AT&T Enterprises, LLC 6.50ms from San Jose, US
97.113.144.212 AS209 CenturyLink Communications, LLC 1.43ms from Seattle, US
125.148.83.20 AS4766 Korea Telecom 2.04ms from Seoul, KR
153.216.206.36 AS4713 NTT DOCOMO BUSINESS,Inc. 3.73ms from Tokyo, JP
99.62.97.148 AS7018 AT&T Enterprises, LLC 1.62ms from Atlanta, US
54.222.249.196 AS55960 Beijing Guanghuan Xinwang Digital 3.53ms from Beijing, CN
66.185.8.132 AS17306 JAB Wireless, INC. 8.44ms from Chicago, US
23.32.37.4 AS35994 Akamai Technologies, Inc. 1.00ms from Chicago, US
216.27.173.180 AS62610 Zenlayer Inc 0.86ms from Ho Chi Minh City, VN
182.42.143.164 AS4134 CHINANET-BACKBONE 1.13ms from Hohhot, CN
86.169.64.52 AS2856 British Telecommunications PLC 2.44ms from London, GB
99.59.6.52 AS7018 AT&T Enterprises, LLC 19.69ms from Los Angeles, US
203.53.56.4 AS1221 Telstra Limited 0.49ms from Melbourne, AU
79.20.202.100 AS3269 Telecom Italia S.p.A. 3.88ms from Milan, IT
89.31.190.116 AS3216 PJSC "Vimpelcom" 2.05ms from Moscow, RU

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 203.173.4.80
traceroute to 203.173.4.80 (203.173.4.80): 64 hops max, 52 byte packets
1 [AS50613] 37.235.49.2 306.09 ms
2 [AS4739] 203.173.4.80 381.727 ms
Measurement taken from IPinfo ProbeNet in Hafnarfjoerdur, IS
On

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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