123.243.55.0/24

AS7545  ·  TPG Telecom Limited

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Summary

Country Australia
Domain tpg.com.au
ASN AS7545
Parent Range 123.243.0.0/16
Registry APNIC
ID TPG-AU

WHOIS Details

inetnum:        123.243.0.0 - 123.243.255.255
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-routes:     MAINT-AU-TPGCOM
mnt-irt:        IRT-TPGCOM-AU
last-modified:  2020-07-17T05:30:05Z
source:         APNIC

irt:            IRT-TPGCOM-AU
address:        TPG Internet Pty Ltd.
address:        65 Waterloo Road
address:        North Ryde NSW 2113
e-mail:         hostmaster@tpgtelecom.com.au
abuse-mailbox:  hostmaster@tpgtelecom.com.au
admin-c:        TH178-AP
tech-c:         TH178-AP
auth:           # Filtered
remarks:        hostmaster@tpgtelecom.com.au was validated on 2026-01-05
mnt-by:         MAINT-AU-TPGCOM
last-modified:  2026-02-03T00:03:11Z
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:         ip@tpgtelecom.com.au
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:         hostmaster@tpgtelecom.com.au
admin-c:        TH178-AP
tech-c:         TH178-AP
nic-hdl:        AT937-AP
remarks:        Generated from irt object IRT-TPGCOM-AU
remarks:        hostmaster@tpgtelecom.com.au was validated on 2026-01-05
abuse-mailbox:  hostmaster@tpgtelecom.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2026-01-05T00:44:01Z
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:         hostmaster@tpgtelecom.com.au
remarks:        -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
remarks:        Send all spam and abuse reports to abuse@tpg.com.au 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:        ipnoc@tpgtelecom.com.au
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:         hostmaster@tpgtelecom.com.au
mnt-by:         MAINT-AU-TPGCOM
last-modified:  2024-12-23T03:41:13Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 123.243.55.0/24

Range ASN Company Num of IPs
123.243.0.0/16 AS7545 TPG Internet Pty Ltd. 65,536

Nearby Ranges

BGP prefixes that overlap with 123.243.0.0/16

Range ASN Company Num of IPs
123.243.0.0/16 AS7545 TPG Internet Pty Ltd. 65,536

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

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

IP Address ASN Details
123.243.55.135 AS7545 TPG Telecom Limited 1.14ms 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
178.229.18.120 AS31615 Odido Netherlands B.V. 14.73ms from Amsterdam, NL
20.234.223.88 AS8075 Microsoft Corporation 0.22ms from Amsterdam, NL
18.210.212.200 AS14618 Amazon.com, Inc. 0.48ms from Ashburn, US
106.120.147.72 AS23724 IDC, China Telecommunications Corporation 4.83ms from Beijing, CN
174.77.254.40 AS22773 Cox Communications Inc. 4.31ms from Boston, US
66.116.33.40 AS5742 Fidium 5.04ms from Chicago, US
129.89.169.88 AS7050 University of Wisconsin - Milwaukee 3.36ms from Chicago, US
139.186.16.104 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.23ms from Chongqing, CN
72.26.13.104 AS6300 Fidium 4.92ms from Dallas, US
40.77.85.248 AS8075 Microsoft Corporation 0.19ms from Des Moines, US
163.5.207.40 AS199058 SERVA ONE LTD 0.94ms from Dronten, NL
47.98.20.120 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.63ms from Hangzhou, CN
220.164.5.216 AS4134 CHINANET-BACKBONE 2.52ms from Kunming, CN
51.6.100.88 AS6871 Plusnet 4.31ms from London, GB
71.10.75.24 AS20115 Charter Communications LLC 15.90ms from Minneapolis, US
93.123.136.88 AS35539 Information and Communication Technologies LLC 2.16ms from Moscow, RU
180.24.176.120 AS4713 NTT DOCOMO BUSINESS,Inc. 3.36ms from Osaka, JP
125.11.15.184 AS9824 JCOM Co., Ltd. 8.21ms from Osaka, JP
193.43.141.88 AS137 Consortium GARR 5.30ms from Rome, IT
194.254.42.120 AS2200 Renater 1.90ms from Saint-Denis, FR
14.103.61.72 AS4811 China Telecom (Group) 3.02ms from Shanghai, CN
43.156.50.216 AS132203 Tencent Building, Kejizhongyi Avenue 0.28ms from Singapore, SG
199.36.45.120 AS36745 Caleres, Inc. 0.77ms from St. Louis, US
95.202.246.152 AS3301 Telia Company AB 11.14ms from Stockholm, SE
70.50.175.200 AS577 Bell Canada 4.14ms from Toronto, CA

Traceroute

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

$
traceroute -a -n -q1 123.243.55.182
traceroute to 123.243.55.182 (123.243.55.182): 64 hops max, 52 byte packets
2 *
3 [AS7545] 27.32.160.205 1.678 ms
4 *
Measurement taken from IPinfo ProbeNet in Melbourne, AU
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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