203.221.51.0/24

AS7545 · TPG Telecom Limited

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	Australia
Domain	tpg.com.au
ASN	AS7545
Registry	APNIC
ID	TPG-AU

WHOIS Details

inetnum:        203.221.0.0 - 203.221.255.255
netname:        TPG-AU
descr:          TPG Internet Pty Ltd.
country:        AU
org:            ORG-TIPL2-AP
admin-c:        TH178-AP
tech-c:         TH178-AP
abuse-c:        AT937-AP
status:         ALLOCATED PORTABLE
remarks:        Australian Internet Service Provider (ISP)
remarks:        http://www.tpg.com.au
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-lower:      MAINT-AU-TPGCOM
mnt-irt:        IRT-TPGCOM-AU
last-modified:  2020-06-23T02:06:08Z
source:         APNIC

irt:            IRT-TPGCOM-AU
address:        TPG Internet Pty Ltd.
address:        65 Waterloo Road
address:        North Ryde NSW 2113
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        TH178-AP
tech-c:         TH178-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-06-18
mnt-by:         MAINT-AU-TPGCOM
last-modified:  2025-10-30T05:02:20Z
source:         APNIC

organisation:   ORG-TIPL2-AP
org-name:       TPG Internet Pty Ltd
org-type:       LIR
country:        AU
address:        65 Waterloo Road
phone:          +61-2-9850-0800
fax-no:         +61-2-9850-0813
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:46Z
source:         APNIC

role:           ABUSE TPGCOMAU
country:        ZZ
address:        TPG Internet Pty Ltd.
address:        65 Waterloo Road
address:        North Ryde NSW 2113
phone:          +000000000
e-mail:         [email protected]
admin-c:        TH178-AP
tech-c:         TH178-AP
nic-hdl:        AT937-AP
remarks:        Generated from irt object IRT-TPGCOM-AU
remarks:        [email protected] was validated on 2025-06-18
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-06-18T23:21:23Z
source:         APNIC

role:           TPG Hostmaster
address:        TPG Telecom Limited
address:        65 Waterloo Road
address:        North Ryde NSW 2113
country:        AU
phone:          +61 2 9850 0800
fax-no:         +61 2 9850 0817
e-mail:         [email protected]
remarks:        -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
remarks:        Send all spam and abuse reports to [email protected] or
remarks:        via our web interface at the link provided below:
remarks:        http://www.tpg.com.au/about/enquiry.php?type=Report%20Spamming
remarks:        .
remarks:        Please include detailed information such as full message
remarks:        headers and times in UTC
remarks:        --
remarks:        Send all network related issues such as routing to
remarks:        [email protected]
remarks:        -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
remarks:        Australian Internet Service Provider (ISP)
remarks:        http://www.tpg.com.au
admin-c:        TPG3-AP
tech-c:         TPG2-AP
tech-c:         TA56-AP
nic-hdl:        TH178-AP
notify:         [email protected]
mnt-by:         MAINT-AU-TPGCOM
last-modified:  2024-12-23T03:41:13Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.221.0.0/16

Range	ASN	Company	Num of IPs
203.221.177.0/24	AS7545	Jumbo Corporation	256
203.221.200.0/24	AS7545	Salient Enterprises Pty Ltd t/a Interworx Technologies Pty Ltd	256
203.221.22.0/24	AS7545	TPG Internet Pty Ltd.	256
203.221.235.0/24	AS7545	TPG Telecoms	256
203.221.173.0/24	AS9942	With IT	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

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

IP Address	ASN	Details
203.221.51.43	AS7545 TPG Telecom Limited	`1.81ms` 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
23.222.25.24	AS20940 Akamai International B.V.	`0.17ms` from Ashburn, US
4.156.34.200	AS8075 Microsoft Corporation	`0.35ms` from Ashburn, US
87.181.240.136	AS3320 Deutsche Telekom AG	`4.68ms` from Frankfurt am Main, DE
116.62.82.104	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`3.81ms` from Hangzhou, CN
138.113.39.24	AS54994 Meteverse Limited.	`1.03ms` from Hong Kong, HK
74.123.142.120	AS400706 Heart of Iowa Communications Cooperative	`6.95ms` from Kansas City, US
5.69.91.24	AS5607 Sky UK Limited	`6.03ms` from London, GB
169.136.191.88	AS10122 NETSTAR (SG) PTE. LTD.	`0.45ms` from Moscow, RU
74.101.188.136	AS701 Verizon Business	`2.89ms` from New York City, US
187.37.145.40	AS28573 Claro NXT Telecomunicacoes Ltda	`4.70ms` from Osasco, BR
88.90.109.232	AS2119 Telenor Norge AS	`10.65ms` from Oslo, NO
95.68.232.24	AS12389 PJSC Rostelecom	`12.30ms` from Samara, RU
121.151.9.8	AS4766 Korea Telecom	`4.34ms` from Seoul, KR
221.157.224.152	AS4766 Korea Telecom	`6.54ms` from Seoul, KR
39.120.139.56	AS9318 SK Broadband Co Ltd	`2.16ms` from Seoul, KR
180.67.201.136	AS9318 SK Broadband Co Ltd	`2.86ms` from Seoul, KR
93.158.100.8	AS12552 GlobalConnect AB	`0.85ms` from Stockholm, SE
219.85.236.104	AS18182 Sony Network Taiwan Limited	`4.55ms` from Taipei, TW
45.37.124.88	AS11426 Charter Communications Inc	`11.15ms` from Ashburn, US
136.230.182.136	AS245 Planning Research Corporation	`0.07ms` from Ashburn, US
114.255.222.248	AS4808 China Unicom Beijing Province Network	`3.04ms` from Beijing, CN
179.38.75.152	AS22927 Telefonica de Argentina	`1.95ms` from Buenos Aires, AR
108.159.7.40	AS16509 Amazon.com, Inc.	`0.28ms` from Chennai, IN
61.245.175.88	AS45356 Mobitel Pvt Ltd	`16.57ms` from Colombo, LK
93.120.218.168	AS12389 PJSC Rostelecom	`6.13ms` from Kazan, RU

Traceroute

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

traceroute -a -n -q1 203.221.51.203

traceroute to 203.221.51.203 (203.221.51.203): 64 hops max, 52 byte packets

1 [AS132372] 103.161.133.253 2.363 ms

2 *

3 *

4 *

5 *

6 [AS1299] 62.115.181.197 223.502 ms

7 *

8 *

9 [AS1299] 62.115.140.227 248.173 ms

10 [AS1299] 213.248.95.233 396.587 ms

11 [AS9942] 203.221.3.103 392.306 ms

12 *

13 *

14 [AS7545] 60.240.241.104 410.557 ms

15 [AS7545] 203.221.51.203 413.861 ms

Measurement taken from

IPinfo ProbeNet in Sepang, MY

On December 14th 2025

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales