123.208.156.0/23

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 123.208.156.0/23

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 is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
123.208.156.118	a61.nl	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

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

IP Address	ASN	Details
123.208.157.254	AS135887 Belong (Telstra Limited)	`1.33ms` from Perth, AU
123.208.156.37	AS135887 Belong (Telstra Limited)	`4.38ms` from Perth, 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
20.85.211.119	AS8075 Microsoft Corporation	`0.43ms` from Ashburn, US
136.53.133.183	AS16591 Google Fiber Inc.	`5.84ms` from Atlanta, US
191.103.2.39	AS28048 Internet Para Todos - Gobierno de La Rioja	`8.48ms` from Cordoba, AR
23.197.9.151	AS16625 Akamai Technologies, Inc.	`0.30ms` from Duesseldorf, DE
217.82.114.7	AS3320 Deutsche Telekom AG	`6.72ms` from Frankfurt am Main, DE
90.207.170.103	AS5607 Sky UK Limited	`4.52ms` from London, GB
110.174.85.231	AS7545 TPG Telecom Limited	`1.80ms` from Melbourne, AU
126.25.122.167	AS17676 SoftBank Corp.	`2.01ms` from Osaka, JP
176.138.136.215	AS5410 Bouygues Telecom SA	`2.08ms` from Paris, FR
150.254.79.247	AS9112 POZMAN-EDU	`1.38ms` from Poznan, PL
100.51.19.215	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
76.105.36.103	AS7922 Comcast Cable Communications, LLC	`5.28ms` from Santa Clara, US
153.198.190.199	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.78ms` from Tokyo, JP
61.25.157.247	AS9824 JCOM Co., Ltd.	`0.74ms` from Tokyo, JP
46.183.249.247	AS15693 Today Concepts B.V.	`0.76ms` from Amsterdam, NL
149.72.137.167	AS11377 SendGrid, Inc.	`0.38ms` from Ashburn, US
207.226.172.135	AS3491 PCCW Global, Inc.	`0.20ms` from Ashburn, US
164.223.121.87	AS89 Navy Network Information Center (NNIC)	`2.72ms` from Ashburn, US
73.75.144.183	AS7922 Comcast Cable Communications, LLC	`3.39ms` from Chicago, US
71.196.201.167	AS7922 Comcast Cable Communications, LLC	`3.57ms` from Denver, US
213.18.165.119	AS56329 Gigaclear Limited	`1.49ms` from London, GB
147.185.250.103	AS264617 GRUPO PANAGLOBAL 15 S.A	`0.18ms` from Lugano, CH
112.177.81.215	AS4766 Korea Telecom	`1.75ms` from Seoul, KR
31.13.208.103	AS215439 PLAY2GO INTERNATIONAL LIMITED	`6.79ms` from Stockholm, SE
154.244.144.103	AS36947 Telecom Algeria	`9.25ms` from Valencia, ES

Traceroute

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

traceroute -a -n -q1 123.208.156.235

traceroute to 123.208.156.235 (123.208.156.235): 64 hops max, 52 byte packets

1 [AS15169] 142.251.228.106 168.31 ms

2 [AS15169] 192.178.98.26 169.034 ms

3 [AS1221] 58.163.91.193 176.13 ms

4 [AS1221] 203.50.11.176 175.247 ms

5 [AS1221] 203.50.13.131 185.653 ms

6 [AS1221] 203.50.6.125 193.864 ms

7 [AS1221] 203.50.6.239 222.016 ms

8 [AS1221] 203.50.6.175 234.755 ms

9 [AS1221] 139.130.96.230 223.724 ms

10 *

11 [AS1221] 58.162.27.133 221.955 ms

12 [AS135887] 123.208.156.235 227.368 ms

Measurement taken from

IPinfo ProbeNet in Dallas, 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.

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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