123.208.20.0/23

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 2025-07-15
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2025-09-04T01:00:06Z
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 2025-07-15
abuse-mailbox:  abuse@telstra.net
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:         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 123.208.20.0/23

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

Pingable IPs

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

IP Address ASN Details
123.208.20.71 AS135887 Belong (Telstra Limited) 2.53ms from Sydney, AU
123.208.21.254 AS135887 Belong (Telstra Limited) 2.28ms 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
162.141.213.103 AS7029 Windstream Communications LLC 0.40ms from Ashburn, US
182.151.19.87 AS38283 CHINANET SiChuan Telecom Internet Data Center 1.83ms from Chengdu, CN
217.82.212.103 AS3320 Deutsche Telekom AG 1.55ms from Duesseldorf, DE
70.95.207.167 AS20001 Charter Communications Inc 5.46ms from Los Angeles, US
86.236.184.23 AS3215 Orange S.A. 7.22ms from Paris, FR
90.120.157.247 AS3215 Orange S.A. 13.24ms from Paris, FR
90.179.93.7 AS5610 O2 Czech Republic, a.s. 8.55ms from Prague, CZ
52.232.135.55 AS8075 Microsoft Corporation 0.16ms from Quebec, CA
151.25.24.39 AS1267 WIND TRE S.P.A. 3.70ms from Rome, IT
79.52.219.199 AS3269 Telecom Italia S.p.A. 2.45ms from Rome, IT
187.232.197.23 AS8151 UNINET 11.49ms from Santiago de Queretaro, MX
119.215.176.199 AS4766 Korea Telecom 4.08ms from Seoul, KR
61.155.218.135 AS140292 CHINATELECOM Jiangsu province Suzhou 5G network 6.24ms from Shanghai, CN
101.166.64.23 AS1221 Telstra Limited 5.25ms from Sydney, AU
176.46.115.87 AS3249 Telia Eesti AS 0.64ms from Tallinn, EE
210.146.236.167 AS2519 ARTERIA Networks Corporation 2.76ms from Tokyo, JP
5.188.67.199 AS200590 NLS Kazakhstan LLC 0.54ms from Almaty, KZ
84.80.20.55 AS1136 KPN B.V. 2.53ms from Amsterdam, NL
52.37.55.55 AS16509 Amazon.com, Inc. 0.15ms from Boardman, US
73.220.193.103 AS7922 Comcast Cable Communications, LLC 7.01ms from Fremont, US
77.90.157.135 AS62240 Clouvider 0.25ms from London, GB
212.145.201.231 AS12430 VODAFONE ESPANA S.A.U. 0.66ms from Madrid, ES
46.202.15.151 AS9009 M247 Europe SRL 0.08ms from Madrid, ES
2.233.116.183 AS12874 Fastweb SpA 1.05ms from Milan, IT
113.194.175.7 AS4837 CHINA UNICOM China169 Backbone 5.04ms from Nanchang, CN

Traceroute

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

$
traceroute -a -n -q1 123.208.21.27
traceroute to 123.208.21.27 (123.208.21.27): 64 hops max, 52 byte packets
1 [AS15169] 66.249.94.19 312.13 ms
2 [AS15169] 192.178.97.154 311.992 ms
3 *
4 [AS1221] 61.8.24.126 294.664 ms
5 *
6 [AS1221] 58.162.27.82 298.018 ms
7 [AS135887] 123.208.21.27 303.985 ms
Measurement taken from IPinfo ProbeNet in Zuerich, CH
On

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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