All IP Ranges
123.0.0.0/8
AS1221 | 123.210.0.0/15

123.210.0.0/15

AS1221 · Telstra Limited

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

Summary

Country	Australia
Domain	telstra.net
ASN	AS1221
Registry	APNIC
ID	TELSTRAINTERNET46-AU

WHOIS Details

inetnum:        123.208.0.0 - 123.211.255.255
netname:        TELSTRAINTERNET46-AU
descr:          Telstra Limited
country:        AU
org:            ORG-TC6-AP
admin-c:        TIAR-AP
tech-c:         TAN2-AP
abuse-c:        AT1005-AP
status:         ALLOCATED PORTABLE
remarks:        -----
remarks:        All reports regarding SPAM or security breaches
remarks:        should be addressed to abuse@telstra.net
remarks:        ------
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-TIAR-AP
mnt-routes:     MAINT-AU-TIAR-AP
mnt-irt:        IRT-TELSTRA-AU
last-modified:  2024-05-10T00:50:21Z
geofeed:        https://geofeed.tools.telstra.net/geofeed.csv
source:         APNIC

irt:            IRT-TELSTRA-AU
address:        Telstra Internet
e-mail:         abuse@telstra.net
abuse-mailbox:  abuse@telstra.net
admin-c:        TIAR-AP
tech-c:         TIAR-AP
auth:           # Filtered
remarks:        abuse@telstra.net was validated on 2025-07-15
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2025-09-04T01:00:06Z
source:         APNIC

organisation:   ORG-TC6-AP
org-name:       Telstra Limited
org-type:       LIR
country:        AU
address:        242 Exhibition Street
e-mail:         corporateaddressing@team.telstra.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-12-06T08:30:50Z
source:         APNIC

role:           ABUSE TELSTRAAU
country:        ZZ
address:        Telstra Internet
phone:          +000000000
e-mail:         abuse@telstra.net
admin-c:        TIAR-AP
tech-c:         TIAR-AP
nic-hdl:        AT1005-AP
remarks:        Generated from irt object IRT-TELSTRA-AU
remarks:        abuse@telstra.net was validated on 2025-07-15
abuse-mailbox:  abuse@telstra.net
mnt-by:         APNIC-ABUSE
last-modified:  2025-07-15T22:43:15Z
source:         APNIC

role:           Telstra AU NOC
address:        Telstra Internet
address:        242 Exhibition Street
address:        Melbourne
address:        VIC 3000
country:        AU
phone:          +61 3 8632 0516
e-mail:         ipnoc-au@team.telstra.com
admin-c:        TIAR-AP
tech-c:         TIAR-AP
nic-hdl:        TAN2-AP
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2022-06-08T09:03:20Z
source:         APNIC

person:         Telstra Internet Address Registry
address:        Telstra Internet
address:        242 Exhibition St
address:        Melbourne
address:        VIC 3000
country:        AU
phone:          +61 000000000
e-mail:         addressing@telstra.net
nic-hdl:        TIAR-AP
remarks:        Telstra Internet Address Registry Role Object
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2021-12-09T22:28:56Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 123.0.0.0/8

Range	ASN	Company	Num of IPs
123.8.0.0/13	AS4837	China Unicom Henan province network	524,288
123.152.0.0/13	AS4837	China Unicom Zhejiang province network	524,288
123.128.0.0/13	AS4837	China Unicom Shandong Province Network	524,288
123.216.0.0/13	AS4713	NTT DOCOMO BUSINESS,Inc.	524,288
123.224.0.0/14	AS4713	NTT DOCOMO BUSINESS,Inc.	262,144
123.212.0.0/14	AS9318	SK Broadband Co Ltd	262,144
123.140.0.0/14	AS9526	LG DACOM Corporation	262,144
123.140.0.0/14	AS18338	LG DACOM Corporation	262,144
123.192.0.0/14	AS38841	kbro CO. Ltd.	262,144
123.104.0.0/14	AS9595	NTT EAST, Inc.	262,144
123.212.0.0/14	AS17845	SK Broadband Co Ltd	262,144
123.140.0.0/14	AS4790	LG DACOM Corporation	262,144
123.140.0.0/14	AS9776	LG DACOM Corporation	262,144
123.140.0.0/14	AS9638	LG DACOM Corporation	262,144
123.212.0.0/14	AS38429	SK Broadband Co Ltd	262,144
123.140.0.0/14	AS9530	LG DACOM Corporation	262,144
123.164.0.0/14	AS17897	CHINANET HEILONGJIANG PROVINCE NETWORK	262,144
123.244.0.0/14	AS134762	CHINANET liaoning province network	262,144
123.140.0.0/14	AS138195	LG DACOM Corporation	262,144
123.52.0.0/14	AS139587	CHINANET HENAN PROVINCE NETWORK	262,144
123.140.0.0/14	AS45376	LG DACOM Corporation	262,144
123.160.0.0/14	AS137687	CHINANET henan province network	262,144
123.180.0.0/14	AS58539	CHINANET hebei province network	262,144
123.244.0.0/14	AS137688	CHINANET liaoning province network	262,144
123.140.0.0/14	AS3786	LG DACOM Corporation	262,144
123.140.0.0/14	AS9843	LG DACOM Corporation	262,144
123.164.0.0/14	AS4134	CHINANET HEILONGJIANG PROVINCE NETWORK	262,144
123.52.0.0/14	AS4134	CHINANET HENAN PROVINCE NETWORK	262,144
123.52.0.0/14	AS137687	CHINANET HENAN PROVINCE NETWORK	262,144
123.164.0.0/14	AS137691	CHINANET HEILONGJIANG PROVINCE NETWORK	262,144
123.144.0.0/14	AS4837	China Unicom Chongqing province network	262,144
123.184.0.0/14	AS137688	CHINANET liaoning province network	262,144
123.4.0.0/14	AS4837	China Unicom Henan province network	262,144
123.184.0.0/14	AS4134	CHINANET liaoning province network	262,144
123.180.0.0/14	AS4134	CHINANET hebei province network	262,144
123.232.0.0/14	AS4837	China Unicom Shandong Province Network	262,144
123.160.0.0/14	AS139018	CHINANET henan province network	262,144
123.168.0.0/14	AS4809	CHINANET SHANDONG PROVINCE NETWORK	262,144
123.52.0.0/14	AS139018	CHINANET HENAN PROVINCE NETWORK	262,144
123.244.0.0/14	AS17799	CHINANET liaoning province network	262,144
123.212.0.0/14	AS55615	SK Broadband Co Ltd	262,144
123.164.0.0/14	AS4809	CHINANET HEILONGJIANG PROVINCE NETWORK	262,144
123.160.0.0/14	AS4134	CHINANET henan province network	262,144
123.168.0.0/14	AS4134	CHINANET SHANDONG PROVINCE NETWORK	262,144
123.212.0.0/14	AS17590	SK Broadband Co Ltd	262,144
123.184.0.0/14	AS134762	CHINANET liaoning province network	262,144
123.244.0.0/14	AS4134	CHINANET liaoning province network	262,144
123.188.0.0/14	AS4837	China Unicom Liaoning province network	262,144
123.212.0.0/14	AS10167	SK Broadband Co Ltd	262,144
123.96.0.0/15	AS4134	CHINANET Zhejiang province network	131,072

Hosted domains

There are 8 domain names hosted across 8 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
123.211.237.142	yodobashii.net	1
123.211.85.213	chiackin.com	1
123.211.25.74	phipps-family.net	1
123.211.212.179	maroochyvehicleownersclubinc.org.au	1
123.210.248.170	oiab-oop.com	1
123.210.137.141	5technical.com	1
123.211.6.185	gr8rex.com	1
123.211.4.127	lacconsulting.net.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

1,647 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
123.210.132.200	AS1221 Telstra Limited	`10.74ms` from Sydney, AU
123.210.130.243	AS1221 Telstra Limited	`12.03ms` from Sydney, AU
123.210.134.104	AS1221 Telstra Limited	`10.90ms` from Sydney, AU
123.210.144.224	AS1221 Telstra Limited	`12.67ms` from Sydney, AU
123.210.147.22	AS1221 Telstra Limited	`9.67ms` from Sydney, AU
123.210.133.53	AS1221 Telstra Limited	`11.90ms` from Sydney, AU
123.210.139.182	AS1221 Telstra Limited	`13.14ms` from Sydney, AU
123.210.129.119	AS1221 Telstra Limited	`8.63ms` from Sydney, AU
123.210.136.205	AS1221 Telstra Limited	`8.19ms` from Sydney, AU
123.210.143.251	AS1221 Telstra Limited	`12.27ms` from Sydney, AU
123.210.131.8	AS1221 Telstra Limited	`9.59ms` from Sydney, AU
123.210.141.46	AS1221 Telstra Limited	`13.22ms` from Sydney, AU
123.210.145.116	AS1221 Telstra Limited	`10.02ms` from Sydney, AU
123.210.142.116	AS1221 Telstra Limited	`13.18ms` from Sydney, AU
123.210.140.96	AS1221 Telstra Limited	`13.70ms` from Sydney, AU
123.210.128.220	AS1221 Telstra Limited	`10.28ms` from Sydney, AU
123.210.135.27	AS1221 Telstra Limited	`12.54ms` from Sydney, AU
123.210.146.124	AS1221 Telstra Limited	`13.23ms` from Sydney, AU
123.210.137.195	AS1221 Telstra Limited	`11.85ms` from Sydney, AU
123.210.138.89	AS1221 Telstra Limited	`12.46ms` 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
79.203.219.207	AS3320 Deutsche Telekom AG	`4.86ms` from Frankfurt am Main, DE
101.71.71.95	AS4837 CHINA UNICOM China169 Backbone	`5.43ms` from Hangzhou, CN
51.198.218.191	AS5607 Sky UK Limited	`2.10ms` from London, GB
2.126.110.15	AS5607 Sky UK Limited	`1.56ms` from London, GB
46.208.182.127	AS6871 Plusnet	`4.71ms` from London, GB
184.31.3.15	AS33905 Akamai International B.V.	`0.12ms` from Madrid, ES
188.54.56.255	AS25019 Saudi Telecom Company JSC	`2.10ms` from Riyadh, SA
170.114.87.47	AS31898 Oracle Corporation	`0.14ms` from Riyadh, SA
20.235.58.15	AS8075 Microsoft Corporation	`0.33ms` from Saint Thomas Mount, IN
52.53.162.31	AS16509 Amazon.com, Inc.	`0.14ms` from San Jose, US
107.162.239.15	AS55002 F5, Inc.	`0.32ms` from San Jose, US
113.199.11.255	AS17608 ABN	`1.02ms` from Seoul, KR
4.194.67.143	AS8075 Microsoft Corporation	`0.41ms` from Singapore, SG
93.143.107.15	AS5391 Hrvatski Telekom d.d.	`6.78ms` from Zagreb, HR
3.128.77.175	AS16509 Amazon.com, Inc.	`0.12ms` from Columbus, US
62.225.27.239	AS3320 Deutsche Telekom AG	`3.52ms` from Frankfurt am Main, DE
170.84.149.255	AS265011 Infoway Telecom Araruna Ltda	`4.06ms` from Joao Pessoa, BR
178.207.233.95	AS28840 PJSC "TATTELECOM"	`4.36ms` from Kazan, RU
47.81.205.95	AS45102 Alibaba (US) Technology Co., Ltd.	`0.77ms` from Kuala Lumpur, MY
99.171.191.207	AS7018 AT&T Enterprises, LLC	`5.18ms` from Los Angeles, US
79.28.136.255	AS3269 Telecom Italia S.p.A.	`1.25ms` from Milan, IT
154.12.165.207	AS55286 B2 Net Solutions Inc.	`0.38ms` from Montreal, CA
97.96.229.111	AS33363 Charter Communications, Inc	`4.30ms` from Orlando, US
39.78.66.15	AS4837 CHINA UNICOM China169 Backbone	`5.93ms` from Qingdao, CN
120.60.8.15	AS9829 National Internet Backbone	`13.22ms` from Saint Thomas Mount, IN

Traceroute

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

traceroute -a -n -q1 -m7 123.210.4.142

traceroute to 123.210.4.142 (123.210.4.142): 7 hops max, 52 byte packets

1 [AS15169] 66.249.94.19 1.24 ms

2 [AS15169] 192.178.97.224 1.257 ms

3 *

4 [AS1221] 203.50.11.172 2.534 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On October 30th 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