203.17.73.0/24

AS9268 · Over The Wire Pty Ltd

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Summary

Country	Australia
Domain	ultrahost.net.au
ASN	AS9268
Registry	APNIC
ID	ULTRAHOSTPTYLTD-AU

WHOIS Details

inetnum:        203.17.73.0 - 203.17.73.255
netname:        ULTRAHOSTPTYLTD-AU
descr:          Ultrahost Pty Ltd
country:        AU
org:            ORG-UPL14-AP
admin-c:        UPLA10-AP
tech-c:         UPLA10-AP
abuse-c:        AU335-AP
status:         ASSIGNED 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-routes:     MAINT-ULTRAHOSTPTYLTD-AU
mnt-irt:        IRT-ULTRAHOSTPTYLTD-AU
last-modified:  2024-04-02T23:05:26Z
source:         APNIC

irt:            IRT-ULTRAHOSTPTYLTD-AU
address:        1 Queens Rd, Melbourne Victoria 3004
e-mail:         abuse@ultrahost.net.au
abuse-mailbox:  abuse@ultrahost.net.au
admin-c:        UPLA10-AP
tech-c:         UPLA10-AP
auth:           # Filtered
remarks:        abuse@ultrahost.net.au was validated on 2025-10-14
mnt-by:         MAINT-ULTRAHOSTPTYLTD-AU
last-modified:  2025-11-18T00:37:39Z
source:         APNIC

organisation:   ORG-UPL14-AP
org-name:       Ultrahost Pty Ltd
org-type:       LIR
country:        AU
address:        1 Queens Rd
phone:          +61398045511
e-mail:         apnic@ultrahost.net.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-02-26T13:08:35Z
source:         APNIC

role:           ABUSE ULTRAHOSTPTYLTDAU
country:        ZZ
address:        1 Queens Rd, Melbourne Victoria 3004
phone:          +000000000
e-mail:         abuse@ultrahost.net.au
admin-c:        UPLA10-AP
tech-c:         UPLA10-AP
nic-hdl:        AU335-AP
remarks:        Generated from irt object IRT-ULTRAHOSTPTYLTD-AU
remarks:        abuse@ultrahost.net.au was validated on 2025-10-14
abuse-mailbox:  abuse@ultrahost.net.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-14T22:41:04Z
source:         APNIC

role:           Ultrahost Pty Ltd administrator
address:        1 Queens Rd, Melbourne Victoria 3004
country:        AU
phone:          +61398045511
e-mail:         abuse@ultrahost.net.au
admin-c:        UPLA10-AP
tech-c:         UPLA10-AP
nic-hdl:        UPLA10-AP
mnt-by:         MAINT-ULTRAHOSTPTYLTD-AU
last-modified:  2024-04-01T23:30:44Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.17.0.0/16

Range	ASN	Company	Num of IPs
203.17.96.0/21	AS7545	iiNet Limited	2,048
203.17.40.0/21	AS1221	Telstra Limited	2,048
203.17.168.0/21	AS9893	Cenitex	2,048
203.17.76.0/22	AS17766	Nexon Asia Pacific Pty Ltd	1,024
203.17.32.0/22	AS24543	First Data Resources Australia	1,024
203.17.240.0/22	AS140065	CiFi Pty Ltd	1,024
203.17.204.0/22	AS4826	Mitsubishi Electric Australia Pty Ltd	1,024
203.17.148.0/22	AS38611	Bendigo Community Telco Limited	1,024
203.17.244.0/23	AS137409	GSL Networks Pty LTD	512
203.17.212.0/23	AS38333	My Net Fone Limited	512
203.17.220.0/23	AS8075	AUSTRADE	512
203.17.245.0/24	AS137409	GSL Networks Pty LTD - Amsterdam	256
203.17.137.0/24	AS150151	SKY COMMUNICATIONS INTERNET SERVICES	256
203.17.177.0/24	AS154167	Rackmill	256
203.17.138.0/24	AS16509	SingTel Optus Pty Ltd	256
203.17.165.0/24	AS16509	Uniware Managed Services Pty Ltd	256
203.17.236.0/24	AS17632	Barristers' Chambers Limited,	256
203.17.70.0/24	AS17807	State Library of Queensland	256
203.17.23.0/24	AS17882	Univision LLC	256
203.17.126.0/24	AS209242	LACHTARISTO HOLDINGS LIMITED	256
203.17.123.0/24	AS212384	Private Customer	256
203.17.251.0/24	AS2764	Data Analysis Australia	256
203.17.66.0/24	AS34414	Nokia Solutions and Networks Australia Pty Ltd	256
203.17.226.0/24	AS38424	KOREA CABLE TELECOM	256
203.17.36.0/24	AS38719	Dreamscape Networks PTY LTD	256
203.17.166.0/24	AS45158	ISW Technology Pty Ltd	256
203.17.253.0/24	AS45240	Realestate.com.au Limited	256
203.17.225.0/24	AS45570	Active Ideas Pty. Ltd.	256
203.17.185.0/24	AS45867	Commonwealth Bank of Australia	256
203.17.7.0/24	AS4826	City Of Kwinana	256
203.17.93.0/24	AS4826	Denver Technology	256
203.17.65.0/24	AS63996	MD Rehanur Rahman t/a M/S FNF Online	256
203.17.8.0/24	AS7545	TPG Internet Pty Ltd.	256
203.17.215.0/24	AS7637	State Library of Victoria	256
203.17.29.0/24	AS7703	Westway Nominees Pty Ltd t/a Bekkers	256
203.17.167.0/24	AS9336	ID Interdomain	256
203.17.120.0/24	AS9893	Cenitex	256
203.17.31.0/24	AS10215	Microland Limited	256
203.17.163.0/24	AS9942	TPG Internet Pty Ltd.	256
203.17.237.0/24	AS10557	UAB code200	256
203.17.162.0/24	AS1221	Telstra Limited	256
203.17.194.0/24	AS131302	294/3 Vidhya Nagari Marg	256
203.17.12.0/24	AS134802	Naic Cable TV Corp.	256
203.17.180.0/24	AS135600	Whiz Communications Pte Ltd	256
203.17.181.0/24	AS135600	Whiz Communications Pte Ltd	256
203.17.214.0/24	AS136518	Department of Planning, Lands and Heritage	256
203.17.193.0/24	AS136572	The Office of the Chief Information Officer (OCIO)	256
203.17.154.0/24	AS137060	The Club Group Pty Limited	256
203.17.244.0/24	AS137409	GSL Networks Pty LTD - Amsterdam	256

Hosted domains

There are 26 domain names hosted across 10 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.17.73.148	adptechnics.com.au	8
203.17.73.28	emdgroup.com.au	5
203.17.73.160	sharmabros.com.au	3
203.17.73.137	ddgroup.com.au	3
203.17.73.100	gemonline.com.au	2
203.17.73.13	1xchange.com.au	1
203.17.73.164	corporatebilling.com.au	1
203.17.73.109	morganinnes.org	1
203.17.73.4	bonningproperty.com.au	1
203.17.73.117	rethinkvolunteering.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

Read more

Pingable IPs

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

IP Address	ASN	Details
203.17.73.163	AS9268 Over The Wire Pty Ltd	`0.41ms` 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
105.108.86.88	AS36947 Telecom Algeria	`14.45ms` from Algiers, DZ
174.163.194.56	AS7922 Comcast Cable Communications, LLC	`3.06ms` from Atlanta, US
139.216.112.200	AS9443 Vocus Retail	`9.64ms` from Brisbane, AU
197.36.182.232	AS8452 TE-AS	`3.75ms` from Cairo, EG
20.91.193.168	AS8075 Microsoft Corporation	`0.16ms` from Gaevle, SE
104.238.76.184	AS26496 GoDaddy.com, LLC	`0.91ms` from Phoenix, US
17.57.154.24	AS714 Apple Inc.	`0.98ms` from Phoenix, US
27.217.240.88	AS4837 CHINA UNICOM China169 Backbone	`7.00ms` from Qingdao, CN
203.67.241.216	AS4780 Digital United Inc.	`12.76ms` from Taipei, TW
221.205.31.120	AS4837 CHINA UNICOM China169 Backbone	`2.29ms` from Taiyuan, CN
54.250.132.216	AS16509 Amazon.com, Inc.	`0.21ms` from Tokyo, JP
89.25.183.200	AS31242 P4 Sp. z o.o.	`0.32ms` from Warsaw, PL
31.204.213.104	AS8585 Crnogorski Telekom a.d.Podgorica	`15.83ms` from Zagreb, HR
65.191.4.232	AS11426 Charter Communications Inc	`9.80ms` from Charlotte, US
67.197.92.56	AS14615 Comporium, Inc	`4.83ms` from Charlotte, US
109.156.185.152	AS2856 British Telecommunications PLC	`3.84ms` from Erith, GB
14.224.64.200	AS45899 VNPT Corp	`2.31ms` from Hanoi, VN
116.206.235.40	AS4787 PT Cyberindo Aditama	`0.67ms` from Jakarta, ID
81.141.127.88	AS2856 British Telecommunications PLC	`1.83ms` from London, GB
31.120.76.200	AS2856 British Telecommunications PLC	`2.40ms` from London, GB
184.51.68.184	AS16625 Akamai Technologies, Inc.	`0.66ms` from Los Angeles, US
74.67.88.248	AS11351 Charter Communications Inc	`15.79ms` from New York City, US
190.95.41.216	AS14117 Telefonica del Sur S.A.	`8.63ms` from Santiago, CL
107.179.174.72	AS5645 TekSavvy Solutions, Inc.	`0.22ms` from Toronto, CA
123.9.79.56	AS4837 CHINA UNICOM China169 Backbone	`4.80ms` from Zhengzhou, CN

Traceroute

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

traceroute -a -n -q1 -f4 203.17.73.197

traceroute to 203.17.73.197 (203.17.73.197): 64 hops max, 52 byte packets

4 [AS3356] 4.78.196.50 194.79 ms

5 *

6 *

7 [AS9268] 203.17.73.197 337.468 ms

Measurement taken from

IPinfo ProbeNet in Rio de Janeiro, BR

On March 13th 2026

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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