203.173.55.0/24

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

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:  2026-01-14T02:44:47Z
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

role:           ABUSE IINETAU
country:        ZZ
address:        iiNet Limited
address:        Level 9, 250 St Georges Tce
address:        Perth
address:        WA 6000
phone:          +000000000
e-mail:         noc@staff.iinet.net.au
admin-c:        IH207-AP
tech-c:         IH207-AP
nic-hdl:        AI376-AP
remarks:        Generated from irt object IRT-IINET-AU
remarks:        noc@staff.iinet.net.au was validated on 2025-10-30
abuse-mailbox:  noc@staff.iinet.net.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-30T06:56:20Z
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 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
203.173.115.0/24 AS202736 ILINKKOREAS 256
203.173.125.0/24 AS38676 RED MOUSE 256
203.173.92.0/24 AS18059 BUANTER-NET 256
203.173.106.0/24 AS395793 ILINKKOREAS 256
203.173.94.0/24 AS18059 BUANTER-NET 256
203.173.93.0/24 AS18059 BUANTER-NET 256
203.173.95.0/24 AS18059 BUANTER-NET 256

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

Pingable IPs

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

IP Address ASN Details
203.173.55.8 AS4739 Internode Pty Ltd 4.32ms from Sydney, 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
36.92.146.216 AS7713 PT Telekomunikasi Indonesia 0.67ms from Batam, ID
3.142.34.216 AS16509 Amazon.com, Inc. 0.20ms from Columbus, US
181.1.215.8 AS7303 Telecom Argentina S.A. 10.07ms from Cordoba, AR
208.189.75.248 AS7018 AT&T Enterprises, LLC 0.96ms from Dallas, US
101.67.66.56 AS4837 CHINA UNICOM China169 Backbone 8.15ms from Hangzhou, CN
87.92.37.104 AS16086 DNA Oyj 0.84ms from Helsinki, FI
115.218.117.40 AS4134 CHINANET-BACKBONE 12.81ms from Ningbo, CN
58.189.85.88 AS17511 OPTAGE Inc. 2.52ms from Osaka, JP
58.84.12.56 AS272432 MAGAZINE LUIZA S/A 0.31ms from Osasco, BR
90.62.93.200 AS3215 Orange S.A. 11.12ms from Paris, FR
94.26.173.152 AS44068 Arbital ISP 0.63ms from Saint Petersburg, RU
24.108.21.232 AS6327 Shaw Communications 8.48ms from Seattle, US
50.32.73.40 AS5650 Frontier Communications of America, Inc. 17.14ms from Secaucus, US
188.149.137.136 AS1257 Tele2 Sverige AB 1.12ms from Stockholm, SE
76.64.210.200 AS577 Bell Canada 2.40ms from Toronto, CA
129.79.150.72 AS87 Indiana University 5.18ms from Chicago, US
162.218.120.120 AS36352 HostPapa 0.29ms from Dallas, US
117.219.156.88 AS9829 National Internet Backbone 11.53ms from Delhi, IN
109.49.151.216 AS2860 NOS COMUNICACOES, S.A. 5.40ms from Lisbon, PT
121.86.107.56 AS17511 OPTAGE Inc. 1.48ms from Osaka, JP
34.226.157.8 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
101.91.211.72 AS4811 China Telecom (Group) 3.23ms from Shanghai, CN
171.125.198.56 AS4837 CHINA UNICOM China169 Backbone 6.64ms from Taiyuan, CN
103.82.115.40 AS17676 SoftBank Corp. 1.44ms from Tokyo, JP
206.195.158.216 AS22709 North State Telephone, LLC 8.29ms from Atlanta, US

Traceroute

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

$
traceroute -a -n -q1 -f4 203.173.55.29
traceroute to 203.173.55.29 (203.173.55.29): 64 hops max, 52 byte packets
5 [AS1299] 62.115.113.80 0.839 ms
6 *
7 *
8 *
9 [AS1299] 62.115.188.5 198.719 ms
10 [AS7545] 203.29.134.43 194.39 ms
11 *
12 *
13 *
14 [AS4739] 203.173.55.29 204.106 ms
Measurement taken from IPinfo ProbeNet in Kansas City, US
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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