203.173.42.0/23

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 abuse@iinet.net.au
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 hostmaster@apnic.net 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


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:         noc@iinet.net.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:51Z
source:         APNIC


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

person:         iiNet Hostmaster
nic-hdl:        IH207-AP
e-mail:         abuse@iinet.net.au
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 AS216425 ILINKKOREA 8,192
203.173.96.0/19 AS38676 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
203.173.92.0/24 AS18059 BUANTER-NET 256
203.173.93.0/24 AS18059 BUANTER-NET 256
203.173.94.0/24 AS18059 BUANTER-NET 256

Hosted domains

There are 30 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
203.173.43.51 whizaccounting.com.au 15
203.173.42.90 dcsserver.net.au 8
203.173.42.162 roblocke.com.au 2
203.173.43.176 fcot.com 1
203.173.43.65 quantum-it.com.au 1
203.173.43.237 jpj.com.au 1
203.173.42.77 prostart.au 1
203.173.43.180 lasbookkeeping.com.au 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

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

IP Address ASN Details
203.173.43.68 AS4739 Internode Pty Ltd 1.72ms from Brisbane, AU
203.173.42.161 AS4739 Internode Pty Ltd 2.09ms from Brisbane, 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
49.232.216.119 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.74ms from Beijing, CN
20.96.185.215 AS8075 Microsoft Corporation 0.80ms from Boydton, US
75.161.159.151 AS209 CenturyLink Communications, LLC 12.59ms from Denver, US
54.194.155.23 AS16509 Amazon.com, Inc. 0.25ms from Dublin, IE
207.154.223.7 AS14061 DigitalOcean, LLC 0.24ms from Frankfurt am Main, DE
49.88.10.39 AS4134 CHINANET-BACKBONE 8.04ms from Huai'an, CN
114.236.55.151 AS4134 CHINANET-BACKBONE 7.10ms from Huai'an, CN
120.157.71.103 AS1221 Telstra Limited 9.26ms from Melbourne, AU
109.63.187.167 AS12714 PJSC MegaFon 2.00ms from Moscow, RU
1.13.250.167 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.97ms from Nanjing, CN
119.229.144.39 AS17511 OPTAGE Inc. 1.81ms from Osaka, JP
39.80.74.103 AS4837 CHINA UNICOM China169 Backbone 8.65ms from Qingdao, CN
188.153.194.71 AS30722 Vodafone Italia S.p.A. 7.66ms from Rome, IT
110.14.242.135 AS9318 SK Broadband Co Ltd 2.74ms from Seoul, KR
39.114.237.151 AS9318 SK Broadband Co Ltd 1.56ms from Seoul, KR
102.154.57.183 AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom) 17.36ms from Tunis, TN
134.102.202.23 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 12.64ms from Berlin, DE
41.234.203.103 AS8452 TE-AS 4.03ms from Cairo, EG
69.132.57.103 AS11426 Charter Communications Inc 8.60ms from Charlotte, US
149.232.249.71 AS16024 GELSEN-NET Kommunikationsgesellschaft mbH 2.41ms from Duesseldorf, DE
3.123.81.39 AS16509 Amazon.com, Inc. 0.18ms from Frankfurt am Main, DE
87.160.38.71 AS3320 Deutsche Telekom AG 7.31ms from Frankfurt am Main, DE
93.237.39.247 AS3320 Deutsche Telekom AG 8.85ms from Frankfurt am Main, DE
119.121.96.215 AS4809 China Telecom Next Generation Carrier Network 5.38ms from Guangzhou, CN
79.153.24.135 AS3352 TELEFONICA DE ESPANA S.A.U. 8.46ms from Madrid, ES

Traceroute

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

$
traceroute -a -n -q1 -f4 203.173.42.76
traceroute to 203.173.42.76 (203.173.42.76): 64 hops max, 52 byte packets
4 [AS6453] 195.219.136.119 137.601 ms
5 *
6 *
7 *
8 *
9 [AS7545] 60.240.241.6 317.905 ms
10 [AS4739] 203.173.42.76 325.422 ms
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
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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