123.209.0.0/16

AS1221 · Telstra Limited

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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 [email protected]
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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        TIAR-AP
tech-c:         TIAR-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-07-15
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2025-11-18T00:26:24Z
source:         APNIC

organisation:   ORG-TC6-AP
org-name:       Telstra Limited
org-type:       LIR
country:        AU
address:        242 Exhibition Street
e-mail:         [email protected]
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:         [email protected]
admin-c:        TIAR-AP
tech-c:         TIAR-AP
nic-hdl:        AT1005-AP
remarks:        Generated from irt object IRT-TELSTRA-AU
remarks:        [email protected] was validated on 2025-07-15
abuse-mailbox:  [email protected]
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 8650 3305
e-mail:         [email protected]
admin-c:        TIAR-AP
tech-c:         TIAR-AP
nic-hdl:        TAN2-AP
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2025-11-26T05:11:17Z
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:         [email protected]
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
123.216.0.0/13	AS4713	NTT DOCOMO BUSINESS,Inc.	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
123.8.0.0/13	AS4837	China Unicom Henan province network	524,288
123.104.0.0/14	AS9595	NTT EAST, Inc.	262,144
123.224.0.0/14	AS4713	NTT DOCOMO BUSINESS,Inc.	262,144
123.184.0.0/14	AS134762	CHINANET liaoning province network	262,144
123.168.0.0/14	AS4134	CHINANET SHANDONG PROVINCE NETWORK	262,144
123.244.0.0/14	AS137688	CHINANET liaoning province network	262,144
123.160.0.0/14	AS137687	CHINANET henan province network	262,144
123.52.0.0/14	AS4134	CHINANET HENAN PROVINCE NETWORK	262,144
123.140.0.0/14	AS138195	LG DACOM Corporation	262,144
123.160.0.0/14	AS4134	CHINANET henan province network	262,144
123.164.0.0/14	AS137691	CHINANET HEILONGJIANG PROVINCE NETWORK	262,144
123.232.0.0/14	AS4837	China Unicom Shandong Province Network	262,144
123.52.0.0/14	AS139587	CHINANET HENAN PROVINCE NETWORK	262,144
123.168.0.0/14	AS4809	CHINANET SHANDONG PROVINCE NETWORK	262,144
123.188.0.0/14	AS4837	China Unicom Liaoning province network	262,144
123.184.0.0/14	AS137688	CHINANET liaoning province network	262,144
123.52.0.0/14	AS137687	CHINANET HENAN PROVINCE NETWORK	262,144
123.164.0.0/14	AS17897	CHINANET HEILONGJIANG PROVINCE NETWORK	262,144
123.164.0.0/14	AS4809	CHINANET HEILONGJIANG PROVINCE NETWORK	262,144
123.164.0.0/14	AS4134	CHINANET HEILONGJIANG PROVINCE NETWORK	262,144
123.52.0.0/14	AS139018	CHINANET HENAN PROVINCE NETWORK	262,144
123.212.0.0/14	AS9318	SK Broadband Co Ltd	262,144
123.144.0.0/14	AS4837	China Unicom Chongqing province network	262,144
123.160.0.0/14	AS139018	CHINANET henan province network	262,144
123.244.0.0/14	AS4134	CHINANET liaoning 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
123.4.0.0/14	AS4837	China Unicom Henan province network	262,144
123.244.0.0/14	AS134762	CHINANET liaoning province network	262,144
123.244.0.0/14	AS17799	CHINANET liaoning province network	262,144
123.192.0.0/14	AS38841	kbro CO. Ltd.	262,144
123.180.0.0/14	AS58539	CHINANET hebei province network	262,144
123.140.0.0/14	AS3786	LG DACOM Corporation	262,144
123.228.0.0/15	AS9644	SK Telecom	131,072
123.178.0.0/15	AS4134	CHINANET neimeng province network	131,072
123.138.0.0/15	AS4837	China Unicom Shannxi province network	131,072
123.204.0.0/15	AS4780	Digital United Inc.	131,072
123.150.0.0/15	AS4809	CHINANET TIANJIN PROVINCE NETWORK	131,072
123.172.0.0/15	AS4134	CHINANET JILIN PROVINCE NETWORK	131,072
123.178.0.0/15	AS4809	CHINANET neimeng province network	131,072
123.150.0.0/15	AS17638	CHINANET TIANJIN PROVINCE NETWORK	131,072
123.174.0.0/15	AS4134	CHINANET shangxi province network	131,072
123.172.0.0/15	AS4809	CHINANET JILIN PROVINCE NETWORK	131,072
123.150.0.0/15	AS58542	CHINANET TIANJIN PROVINCE NETWORK	131,072
123.96.0.0/15	AS4134	CHINANET Zhejiang province network	131,072
123.206.0.0/15	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	131,072
123.56.0.0/15	AS37963	Aliyun Computing Co., LTD	131,072

Hosted domains

There are 13 domain names hosted across 12 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
123.209.112.211	oznook.com	2
123.209.209.55	monproducts.com.au	1
123.209.44.76	generategroup.co	1
123.209.89.191	burkertcloud.com	1
123.209.113.1	au-web.com	1
123.209.125.51	flyashaustralia.com.au	1
123.209.109.164	ballfm.com.au	1
123.209.99.184	carouselride.au	1
123.209.113.20	tradesptyltd.com.au	1
123.209.163.94	raefamily.com.au	1
123.209.244.35	bic-gateway.com	1
123.209.220.4	overyonder.xyz	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

11,070 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
123.209.19.217	AS1221 Telstra Limited	`25.52ms` from Melbourne, AU
123.209.4.51	AS1221 Telstra Limited	`28.16ms` from Melbourne, AU
123.209.100.80	AS1221 Telstra Limited	`11.86ms` from Sydney, AU
123.209.87.100	AS1221 Telstra Limited	`11.56ms` from Sydney, AU
123.209.104.117	AS1221 Telstra Limited	`10.43ms` from Sydney, AU
123.209.124.25	AS1221 Telstra Limited	`8.04ms` from Sydney, AU
123.209.3.32	AS1221 Telstra Limited	`19.83ms` from Melbourne, AU
123.209.108.47	AS1221 Telstra Limited	`12.85ms` from Sydney, AU
123.209.121.10	AS1221 Telstra Limited	`12.19ms` from Sydney, AU
123.209.8.80	AS1221 Telstra Limited	`29.86ms` from Melbourne, AU
123.209.9.224	AS1221 Telstra Limited	`28.32ms` from Melbourne, AU
123.209.28.206	AS1221 Telstra Limited	`29.79ms` from Melbourne, AU
123.209.92.199	AS1221 Telstra Limited	`9.50ms` from Sydney, AU
123.209.93.196	AS1221 Telstra Limited	`9.72ms` from Sydney, AU
123.209.112.5	AS1221 Telstra Limited	`7.89ms` from Sydney, AU
123.209.5.5	AS1221 Telstra Limited	`28.46ms` from Melbourne, AU
123.209.78.177	AS1221 Telstra Limited	`7.10ms` from Sydney, AU
123.209.67.176	AS1221 Telstra Limited	`8.43ms` from Sydney, AU
123.209.131.135	AS1221 Telstra Limited	`27.90ms` from Melbourne, AU
123.209.101.19	AS1221 Telstra Limited	`8.70ms` from Sydney, AU
123.209.68.238	AS1221 Telstra Limited	`11.60ms` from Sydney, AU
123.209.98.6	AS1221 Telstra Limited	`12.78ms` from Sydney, AU
123.209.18.126	AS1221 Telstra Limited	`43.22ms` from Melbourne, AU
123.209.79.63	AS1221 Telstra Limited	`8.39ms` from Sydney, AU
123.209.14.195	AS1221 Telstra Limited	`29.16ms` 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
52.25.81.240	AS16509 Amazon.com, Inc.	`0.12ms` from Boardman, US
96.230.228.224	AS701 Verizon Business	`2.01ms` from Boston, US
213.112.68.160	AS8434 Telenor Sverige AB	`0.54ms` from Goeteborg, SE
39.49.7.128	AS17557 Pakistan Telecommunication Company Limited	`12.78ms` from Lahore, PK
97.167.0.144	AS6167 Verizon Business	`7.57ms` from Los Angeles, US
173.89.131.0	AS10796 Charter Communications Inc	`11.73ms` from Milwaukee, US
40.119.106.48	AS8075 Microsoft Corporation	`1.82ms` from Sandefjord, NO
101.69.14.224	AS4837 CHINA UNICOM China169 Backbone	`4.75ms` from Shanghai, CN
84.50.201.208	AS3249 Telia Eesti AS	`0.78ms` from Tallinn, EE
82.81.56.144	AS8551 Bezeq International Ltd.	`4.92ms` from Tel Aviv, IL
136.114.47.96	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
103.189.176.0	AS133368 Net 3 Link	`0.46ms` from Dhaka, BD
90.211.27.160	AS5607 Sky UK Limited	`1.51ms` from Erith, GB
104.3.29.112	AS7018 AT&T Enterprises, LLC	`16.32ms` from Houston, US
97.167.117.192	AS6167 Verizon Business	`8.44ms` from Los Angeles, US
88.22.30.128	AS3352 TELEFONICA DE ESPANA S.A.U.	`10.87ms` from Madrid, ES
201.97.223.112	AS8151 UNINET	`11.14ms` from Santiago de Querétaro, MX
20.200.246.112	AS8075 Microsoft Corporation	`0.23ms` from Seoul, KR
218.235.41.64	AS9318 SK Broadband Co Ltd	`1.47ms` from Seoul, KR
39.108.255.16	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.54ms` from Shenzhen, CN
111.242.15.80	AS3462 Data Communication Business Group	`5.33ms` from Taichung, TW
126.203.6.48	AS17676 SoftBank Corp.	`3.26ms` from Tokyo, JP
4.248.245.96	AS8075 Microsoft Corporation	`0.16ms` from Toronto, CA
72.203.239.64	AS22773 Cox Communications Inc.	`0.35ms` from Atlanta, US
123.119.188.128	AS4808 China Unicom Beijing Province Network	`4.00ms` from Beijing, CN

Traceroute

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

traceroute -a -n -q1 123.209.87.42

traceroute to 123.209.87.42 (123.209.87.42): 64 hops max, 52 byte packets

1 [AS15169] 142.251.228.106 206.453 ms

2 *

3 [AS1221] 58.163.91.193 207.092 ms

4 [AS1221] 203.54.181.190 206.793 ms

5 [AS1221] 123.209.87.42 228.395 ms

Measurement taken from

IPinfo ProbeNet in Montreal, CA

On December 6th 2025

What are IP address ranges?

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