123.208.138.0/23

AS135887 · Belong (Telstra Limited)

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Summary

Country	Australia
Domain	telstra.net
ASN	AS135887
Parent Range	123.208.0.0/16
Registry	APNIC
ID	TELSTRAINTERNET46-AU

WHOIS Details

inetnum:        123.208.0.0 - 123.208.255.255
netname:        TELSTRAINTERNET46-AU
descr:          Telstra Internet
country:        AU
admin-c:        TIAR-AP
tech-c:         TIAR-AP
abuse-c:        AT1005-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-AU-TIAR-AP
mnt-lower:      MAINT-AU-TIAR-AP
mnt-irt:        IRT-TELSTRA-AU
last-modified:  2024-06-18T07:24:07Z
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 2026-01-26
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2026-01-26T01:19:20Z
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 2026-01-26
abuse-mailbox:  abuse@telstra.net
mnt-by:         APNIC-ABUSE
last-modified:  2026-01-26T01:19:29Z
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

route:          123.208.0.0/16
origin:         AS135887
descr:          Telstra Corporation 242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2020-04-17T07:06:22Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 123.208.138.0/23

Range	ASN	Company	Num of IPs
123.208.0.0/16	AS135887	Telstra Internet	65,536

Nearby Ranges

BGP prefixes that overlap with 123.208.0.0/16

Range	ASN	Company	Num of IPs
123.208.0.0/16	AS135887	Telstra Internet	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
123.208.138.191	AS135887 Belong (Telstra Limited)	`41.90ms` from Melbourne, AU
123.208.139.254	AS135887 Belong (Telstra Limited)	`9.71ms` 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
73.113.242.119	AS7922 Comcast Cable Communications, LLC	`11.35ms` from Atlanta, US
110.136.186.135	AS7713 PT Telekomunikasi Indonesia	`12.38ms` from Batam, ID
40.122.235.215	AS8075 Microsoft Corporation	`0.17ms` from Des Moines, US
162.144.149.87	AS46606 Unified Layer	`1.86ms` from Draper, US
118.145.235.39	AS137718 Beijing Volcano Engine Technology Co., Ltd.	`2.45ms` from Guangzhou, CN
2.63.121.231	AS12389 PJSC Rostelecom	`0.81ms` from Krasnoyarsk, RU
83.40.250.39	AS3352 TELEFONICA DE ESPANA S.A.U.	`10.08ms` from Madrid, ES
185.73.98.231	AS42947 Telfy Telecom S.L.	`5.94ms` from Madrid, ES
92.25.164.151	AS13285 TalkTalk Communications Limited	`7.14ms` from Manchester, GB
78.144.56.39	AS13285 TalkTalk Communications Limited	`1.49ms` from Manchester, GB
24.189.136.103	AS6128 Cablevision Systems Corp.	`7.94ms` from New York City, US
31.220.167.39	AS29072 Regional Digital Telecommunication Company LLC	`9.81ms` from Novosibirsk, RU
88.93.95.231	AS2119 Telenor Norge AS	`10.86ms` from Oslo, NO
60.211.130.71	AS4837 CHINA UNICOM China169 Backbone	`8.08ms` from Qingdao, CN
126.216.114.231	AS17676 SoftBank Corp.	`2.45ms` from Tokyo, JP
52.137.2.231	AS8075 Microsoft Corporation	`0.29ms` from Amsterdam, NL
134.166.111.71	AS668 United States Department of Defense (DoD)	`0.63ms` from Atlanta, US
181.26.56.39	AS22927 Telefonica de Argentina	`1.69ms` from Buenos Aires, AR
181.46.14.71	AS27747 Telecentro S.A.	`15.20ms` from Buenos Aires, AR
121.21.175.215	AS4837 CHINA UNICOM China169 Backbone	`13.87ms` from Changchun, CN
111.235.165.231	AS58536 CONAC (China Organizational Name Administration Center)	`13.80ms` from Changsha, CN
202.150.103.7	AS132231 Network For Learning Limited	`0.70ms` from Christchurch, NZ
223.7.103.119	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`6.63ms` from Hangzhou, CN
38.108.87.39	AS63470 Datavalet Technologies Inc.	`1.02ms` from Montreal, CA
71.203.227.151	AS7922 Comcast Cable Communications, LLC	`6.28ms` from Murfreesboro, US

Traceroute

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

traceroute -a -n -q1 -f6 123.208.138.191

traceroute to 123.208.138.191 (123.208.138.191): 64 hops max, 52 byte packets

6 [AS1221] 61.8.19.225 1.136 ms

7 [AS1221] 203.50.11.111 2.451 ms

8 [AS1221] 203.50.11.195 1.469 ms

9 [AS1221] 138.217.205.130 1.357 ms

10 *

11 [AS1221] 58.162.27.163 10.411 ms

12 [AS135887] 123.208.138.191 85.046 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.

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