123.208.120.0/23

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 123.208.120.0/23

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

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

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

IP Address	ASN	Details
123.208.121.254	AS135887 Belong (Telstra Limited)	`1.85ms` from Brisbane, AU
123.208.120.14	AS135887 Belong (Telstra Limited)	`4.40ms` 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
44.243.27.135	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
202.61.95.151	AS9268 Over The Wire Pty Ltd	`0.38ms` from Brisbane, AU
93.210.63.23	AS3320 Deutsche Telekom AG	`6.12ms` from Frankfurt am Main, DE
81.71.165.7	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.03ms` from Guangzhou, CN
211.159.183.151	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.04ms` from Guangzhou, CN
211.210.252.151	AS9318 SK Broadband Co Ltd	`6.96ms` from Incheon, KR
37.20.203.119	AS12389 PJSC Rostelecom	`13.04ms` from Krasnoyarsk, RU
95.94.93.87	AS2860 NOS COMUNICACOES, S.A.	`7.13ms` from Lisbon, PT
193.151.238.247	AS49828 LLC DARNET	`1.28ms` from Moscow, RU
123.129.187.215	AS4837 CHINA UNICOM China169 Backbone	`8.83ms` from Qingdao, CN
151.50.13.55	AS1267 WIND TRE S.P.A.	`11.41ms` from Rome, IT
52.9.252.231	AS16509 Amazon.com, Inc.	`0.13ms` from San Jose, US
121.166.225.87	AS4766 Korea Telecom	`1.37ms` from Seoul, KR
131.147.237.39	AS2527 Sony Network Communications Inc.	`1.55ms` from Tokyo, JP
117.11.135.71	AS4837 CHINA UNICOM China169 Backbone	`4.99ms` from Beijing, CN
54.184.84.7	AS16509 Amazon.com, Inc.	`0.19ms` from Boardman, US
73.123.47.71	AS7922 Comcast Cable Communications, LLC	`6.03ms` from Boston, US
81.243.156.119	AS5432 Proximus NV	`2.04ms` from Brussels, BE
156.194.195.199	AS8452 TE-AS	`8.60ms` from Cairo, EG
112.44.187.151	AS9808 China Mobile Communications Group Co., Ltd.	`4.99ms` from Chengdu, CN
73.95.184.7	AS7922 Comcast Cable Communications, LLC	`5.28ms` from Denver, US
93.233.34.119	AS3320 Deutsche Telekom AG	`3.52ms` from Duesseldorf, DE
142.251.21.215	AS15169 Google LLC	`0.43ms` from Frankfurt am Main, DE
185.125.206.103	AS25369 Hydra Communications Ltd	`0.34ms` from London, GB
77.229.181.87	AS12430 VODAFONE ESPANA S.A.U.	`7.73ms` from Marseille, FR

Traceroute

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

traceroute -a -n -q1 -f4 123.208.120.64

traceroute to 123.208.120.64 (123.208.120.64): 64 hops max, 52 byte packets

4 [AS36236] 104.225.2.194 4.455 ms

5 *

6 [AS3356] 4.69.211.146 58.416 ms

7 [AS3356] 4.68.68.78 58.823 ms

8 *

9 *

10 [AS4637] 202.84.141.226 196.595 ms

11 [AS1221] 203.50.13.93 195.885 ms

12 [AS1221] 203.50.6.107 196.684 ms

13 [AS1221] 203.50.13.156 210.422 ms

14 [AS1221] 203.50.11.241 209.968 ms

15 [AS1221] 138.217.216.90 210.547 ms

16 *

17 [AS1221] 58.162.27.9 211.509 ms

18 [AS135887] 123.208.120.64 214.13 ms

Measurement taken from

IPinfo ProbeNet in Durham, US

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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