203.55.225.0/24

AS7474 · SingTel Optus Pty Ltd

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Summary

Country	Australia
Domain	helloworld.com.au
ASN	AS7474
Registry	APNIC
ID	HELLOWORLD-AU

WHOIS Details

inetnum:        203.55.225.0 - 203.55.225.255
netname:        HELLOWORLD-AU
descr:          HELLOWORLD TRAVEL LIMITED
country:        AU
org:            ORG-HTL17-AP
admin-c:        HTLA5-AP
tech-c:         HTLA5-AP
abuse-c:        AH1434-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-HELLOWORLD-AU
mnt-irt:        IRT-HELLOWORLD-AU
last-modified:  2023-03-17T05:44:19Z
source:         APNIC

irt:            IRT-HELLOWORLD-AU
address:        helloworld travel limited Level 10, 338 Pitt Street, Sydney Male 2000
e-mail:         jaime.mcdowell@helloworld.com.au
abuse-mailbox:  jaime.mcdowell@helloworld.com.au
admin-c:        HTLA5-AP
tech-c:         HTLA5-AP
auth:           # Filtered
remarks:        jaime.mcdowell@helloworld.com.au was validated on 2025-11-03
mnt-by:         MAINT-HELLOWORLD-AU
last-modified:  2025-11-18T00:36:48Z
source:         APNIC

organisation:   ORG-HTL17-AP
org-name:       HELLOWORLD TRAVEL LIMITED
org-type:       LIR
country:        AU
address:        Level 10, 338 Pitt Street
phone:          +61417661291
e-mail:         jaime.mcdowell@helloworld.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:19:13Z
source:         APNIC

role:           ABUSE HELLOWORLDAU
country:        ZZ
address:        helloworld travel limited Level 10, 338 Pitt Street, Sydney Male 2000
phone:          +000000000
e-mail:         jaime.mcdowell@helloworld.com.au
admin-c:        HTLA5-AP
tech-c:         HTLA5-AP
nic-hdl:        AH1434-AP
remarks:        Generated from irt object IRT-HELLOWORLD-AU
remarks:        jaime.mcdowell@helloworld.com.au was validated on 2025-11-03
abuse-mailbox:  jaime.mcdowell@helloworld.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-03T05:03:25Z
source:         APNIC

role:           HELLOWORLD TRAVEL LIMITED administrator
address:        Level 10, 338 Pitt Street, Sydney Male 2000
country:        AU
phone:          +61417661291
e-mail:         jaime.mcdowell@helloworld.com.au
admin-c:        HTLA5-AP
tech-c:         HTLA5-AP
nic-hdl:        HTLA5-AP
notify:         jaime.mcdowell@helloworld.com.au
mnt-by:         MAINT-HELLOWORLD-AU
last-modified:  2023-03-17T05:44:08Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.55.0.0/16

Range	ASN	Company	Num of IPs
203.55.240.0/21	AS703	Verizon Australia Pty Limited	2,048
203.55.228.0/22	AS4802	iiNet Limited	1,024
203.55.228.0/22	AS4739	iiNet Limited	1,024
203.55.218.0/23	AS134760	CHINANET FUJIAN PROVINCE NETWORK	512
203.55.54.0/23	AS10148	Melbourne Business School Limited	512
203.55.116.0/23	AS58519	CHINANET FUJIAN PROVINCE NETWORK	512
203.55.166.0/23	AS137555	38 Warry Street, Fortitude Vally	512
203.55.2.0/23	AS58519	CHINANET FUJIAN PROVINCE NETWORK	512
203.55.194.0/23	AS9266	Fiveways International Limited	512
203.55.174.0/23	AS4764	Over The Wire Pty Ltd	512
203.55.128.0/23	AS58772	CHINANET FUJIAN PROVINCE NETWORK	512
203.55.182.0/23	AS38232	MUFG PENSION & MARKET SERVICES HOLDINGS LIMITED	512
203.55.146.0/23	AS134760	CHINANET FUJIAN PROVINCE NETWORK	512
203.55.134.0/23	AS23727	Managed Solutions Internet	512
203.55.14.0/23	AS1221	Royal Botanic Gardens Victoria	512
203.55.14.0/23	AS7575	Royal Botanic Gardens Victoria	512
203.55.221.0/24	AS139220	CHINANET FUJIAN PROVINCE NETWORK	256
203.55.224.0/24	AS139220	CHINANET FUJIAN PROVINCE NETWORK	256
203.55.107.0/24	AS209242	ANAGA CONSULTING LIMITED	256
203.55.81.0/24	AS213873	Jules Durand--Arnaudet	256
203.55.35.0/24	AS24110	IVE GROUP AUSTRALIA PTY LTD	256
203.55.36.0/24	AS24110	IVE GROUP AUSTRALIA PTY LTD	256
203.55.112.0/24	AS2764	Elu Information Systems Pty Ltd	256
203.55.122.0/24	AS2914	Zero Effort Networking Pty Ltd	256
203.55.131.0/24	AS32475	Valence Technology Co.	256
203.55.181.0/24	AS38582	Internet gateway infrastructure	256
203.55.173.0/24	AS38594	Innodata-ISOGEN, Inc	256
203.55.188.0/24	AS38611	Bendigo Community Telco Limited	256
203.55.71.0/24	AS397836	Northcentral Electric Cooperative	256
203.55.197.0/24	AS45824	DatacomIT	256
203.55.160.0/24	AS45830	ATUL LTD, Chemical Company	256
203.55.179.0/24	AS46528	Simplot Australia Pty Limited	256
203.55.222.0/24	AS47061	5Q Cloud	256
203.55.106.0/24	AS4739	iiNet Limited	256
203.55.157.0/24	AS4739	iiNet Limited	256
203.55.40.0/24	AS4739	iiNet Limited	256
203.55.44.0/24	AS4739	DRGROUP HUMAN RESOURCES PTY LTD	256
203.55.63.0/24	AS4739	iiNet Limited	256
203.55.250.0/24	AS4826	VOCUS PTY LTD	256
203.55.25.0/24	AS55752	Digital Vista Solutions Pty Ltd	256
203.55.80.0/24	AS55762	Internet Communication Asia Pacific Pty Ltd	256
203.55.138.0/24	AS55819	CAMPAIGN MONITOR PTY LTD	256
203.55.21.0/24	AS55819	CAMPAIGN MONITOR PTY LTD	256
203.55.108.0/24	AS56287	EVENT HOSPITALITY AND ENTERTAINMENT LTD	256
203.55.10.0/24	AS58519	CHINANET FUJIAN PROVINCE NETWORK	256
203.55.13.0/24	AS58519	CHINANET FUJIAN PROVINCE NETWORK	256
203.55.22.0/24	AS58519	CHINANET FUJIAN PROVINCE NETWORK	256
203.55.4.0/24	AS58519	CHINANET FUJIAN PROVINCE NETWORK	256
203.55.89.0/24	AS63919	Incat Tasmania Pty Ltd	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

Read more

Pingable IPs

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

IP Address	ASN	Details
203.55.225.50	AS7474 SingTel Optus Pty Ltd	`1.53ms` 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
13.89.1.184	AS8075 Microsoft Corporation	`0.16ms` from Des Moines, US
160.187.106.24	AS153337 Net Relation	`4.29ms` from Dhaka, BD
162.144.42.24	AS46606 Unified Layer	`1.82ms` from Draper, US
87.151.168.216	AS3320 Deutsche Telekom AG	`3.78ms` from Frankfurt am Main, DE
222.236.72.72	AS9318 SK Broadband Co Ltd	`1.62ms` from Incheon, KR
1.159.37.40	AS1221 Telstra Limited	`2.98ms` from Melbourne, AU
73.107.147.200	AS7922 Comcast Cable Communications, LLC	`4.41ms` from Miami, US
109.236.93.104	AS49981 WorldStream B.V.	`0.10ms` from Naaldwijk, NL
149.202.52.184	AS16276 OVH SAS	`0.13ms` from Strasbourg, FR
39.171.151.216	AS56041 China Mobile communications corporation	`5.14ms` from Suzhou, CN
107.154.126.40	AS19551 Incapsula Inc	`0.49ms` from Ashburn, US
98.50.206.248	AS7922 Comcast Cable Communications, LLC	`9.72ms` from Dallas, US
92.60.198.232	AS42090 Rapid Broadband Ltd	`8.90ms` from Dublin, IE
217.91.106.168	AS3320 Deutsche Telekom AG	`7.96ms` from Frankfurt am Main, DE
184.187.93.168	AS22773 Cox Communications Inc.	`7.97ms` from Herndon, US
77.43.51.216	AS3302 Retelit Digital Services S.p.A.	`1.23ms` from Milan, IT
91.173.166.72	AS12322 Free SAS	`3.57ms` from Paris, FR
50.60.132.200	AS25019 Saudi Telecom Company JSC	`1.87ms` from Riyadh, SA
221.149.145.232	AS4766 Korea Telecom	`1.39ms` from Seoul, KR
129.69.250.104	AS553 BelWue-Koordination	`3.32ms` from Zuerich, CH
67.1.226.88	AS209 CenturyLink Communications, LLC	`15.80ms` from Albuquerque, US
20.168.244.120	AS8075 Microsoft Corporation	`0.59ms` from Ashburn, US
108.235.65.24	AS7018 AT&T Enterprises, LLC	`6.91ms` from Atlanta, US
181.7.242.152	AS7303 Telecom Argentina S.A.	`7.87ms` from Buenos Aires, AR
101.36.112.168	AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED	`0.68ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 203.55.225.50

traceroute to 203.55.225.50 (203.55.225.50): 64 hops max, 52 byte packets

1 [AS31898] 140.91.224.62 0.087 ms

2 [AS7474] 59.154.187.138 0.76 ms

3 [AS7474] 59.154.187.137 1.123 ms

4 *

5 [AS7474] 59.154.57.169 4.321 ms

6 *

7 [AS7474] 203.55.225.50 1.888 ms

Measurement taken from

IPinfo ProbeNet in Melbourne, AU

On February 7th 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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