123.208.42.0/23

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 123.208.42.0/23

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

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

IP Address	ASN	Details
123.208.43.254	AS135887 Belong (Telstra Limited)	`1.75ms` from Sydney, AU
123.208.42.214	AS135887 Belong (Telstra Limited)	`3.80ms` from Sydney, 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
103.182.74.87	AS131215 116 MADHAV DARSHAN	`5.70ms` from Ahmedabad, IN
130.37.66.23	AS1103 SURF B.V.	`3.40ms` from Amsterdam, NL
4.180.56.151	AS8075 Microsoft Corporation	`0.31ms` from Amsterdam, NL
179.14.197.231	AS27831 Colombia Móvil	`13.77ms` from Bogotá, CO
190.1.51.199	AS27833 BVNET S.A.	`7.75ms` from Buenos Aires, AR
73.44.76.23	AS7922 Comcast Cable Communications, LLC	`5.24ms` from Chicago, US
74.120.240.87	AS23005 SWITCH, LTD	`4.83ms` from Dallas, US
151.247.50.23	AS9009 M247 Europe SRL	`0.14ms` from Dallas, US
81.131.78.151	AS2856 British Telecommunications PLC	`2.66ms` from Erith, GB
14.244.70.103	AS45899 VNPT Corp	`2.56ms` from Hanoi, VN
116.109.192.199	AS7552 Viettel Group	`1.11ms` from Ho Chi Minh City, VN
67.11.138.135	AS11427 Charter Communications Inc	`8.59ms` from Houston, US
76.184.167.39	AS11427 Charter Communications Inc	`4.85ms` from Houston, US
63.196.78.199	AS7018 AT&T Enterprises, LLC	`3.62ms` from Los Angeles, US
24.186.105.71	AS6128 Cablevision Systems Corp.	`4.00ms` from New York City, US
188.134.83.151	AS41733 JSC ER-Telecom Holding	`1.47ms` from Saint Petersburg, RU
108.186.159.103	AS54600 PEG TECH INC	`0.75ms` from San Jose, US
50.29.150.87	AS3737 PenTeleData Inc.	`12.02ms` from Secaucus, US
118.44.96.183	AS4766 Korea Telecom	`2.35ms` from Seoul, KR
114.76.142.119	AS4804 Microplex PTY LTD	`4.49ms` from Sydney, AU
20.201.128.7	AS8075 Microsoft Corporation	`1.96ms` from Taipei, TW
119.36.46.55	AS4837 CHINA UNICOM China169 Backbone	`4.99ms` from Wuhan, CN
194.45.42.55	AS1136 KPN B.V.	`0.52ms` from Amsterdam, NL
45.91.161.119	AS202656 Ivanov Vitaliy Sergeevich	`0.46ms` from Amsterdam, NL
214.2.17.183	AS5972 United States Department of Defense (DoD)	`4.44ms` 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 -f6 123.208.43.254

traceroute to 123.208.43.254 (123.208.43.254): 64 hops max, 52 byte packets

6 [AS1221] 138.217.181.65 0.21 ms

7 [AS1221] 203.50.12.132 1.624 ms

8 [AS1221] 203.50.11.177 1.069 ms

9 [AS1221] 61.8.24.198 1.26 ms

10 *

11 [AS135887] 123.208.43.254 3.545 ms

Measurement taken from

IPinfo ProbeNet in Sydney, 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.

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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