123.208.136.0/23

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:         [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

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

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

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 123.208.136.0/23

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

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

IP Address	ASN	Details
123.208.137.254	AS135887 Belong (Telstra Limited)	`12.23ms` 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
59.94.147.135	AS9829 National Internet Backbone	`10.73ms` from Bengaluru, IN
52.39.245.39	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
20.141.74.55	AS8070 Microsoft Corporation	`0.60ms` from Boydton, US
203.49.108.135	AS1221 Telstra Limited	`1.02ms` from Brisbane, AU
130.226.174.135	AS1835 Forskningsnettet - Danish network for Research and Education	`4.70ms` from Falkenberg, SE
122.242.210.71	AS4134 CHINANET-BACKBONE	`9.05ms` from Hangzhou, CN
14.239.77.55	AS45899 VNPT Corp	`4.38ms` from Hanoi, VN
158.136.3.103	AS27405 University System of New Hampshire	`8.93ms` from Montreal, CA
89.158.27.71	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`13.83ms` from Paris, FR
91.191.155.183	AS34177 CELESTE SAS	`0.74ms` from Paris, FR
112.238.109.231	AS4837 CHINA UNICOM China169 Backbone	`7.40ms` from Qingdao, CN
201.113.187.39	AS8151 UNINET	`10.94ms` from Santiago de Queretaro, MX
78.140.140.167	AS35415 Webzilla B.V.	`0.29ms` from Amsterdam, NL
115.99.218.183	AS17488 Hathway IP Over Cable Internet	`1.34ms` from Bengaluru, IN
175.172.73.215	AS4837 CHINA UNICOM China169 Backbone	`17.16ms` from Liaoyang, CN
93.51.1.215	AS12874 Fastweb SpA	`3.16ms` from Milan, IT
89.87.78.71	AS5410 Bouygues Telecom SA	`1.82ms` from Paris, FR
13.222.199.151	AS14618 Amazon.com, Inc.	`0.64ms` from Reston, US
189.242.79.135	AS8151 UNINET	`5.25ms` from Santiago de Queretaro, MX
119.203.239.199	AS4766 Korea Telecom	`3.26ms` from Seoul, KR
175.240.165.215	AS4766 Korea Telecom	`1.57ms` from Seoul, KR
77.168.71.39	AS1136 KPN B.V.	`2.42ms` from Amsterdam, NL
88.218.7.247	AS200023 Qonnected B.V.	`1.23ms` from Amsterdam, NL
76.125.208.231	AS7922 Comcast Cable Communications, LLC	`10.70ms` from Ashburn, US
73.79.116.87	AS7922 Comcast Cable Communications, LLC	`9.79ms` from Ashburn, US

Traceroute

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

traceroute -a -n -q1 -f2 -m5 123.208.136.37

traceroute to 123.208.136.37 (123.208.136.37): 5 hops max, 52 byte packets

2 [AS395463] 8.47.34.194 0.435 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Murfreesboro, US

On December 14th 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.

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