1. All IP Ranges
  2. 123.0.0.0/8
  3. 123.51.0.0/16
  4. AS38333  | 123.51.123.0/24

123.51.123.0/24

AS38333  ·  Symbio Networks

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Summary

Country Australia
Domain telcoinabox.com.au
ASN AS38333
Parent Range 123.51.0.0/17
Registry APNIC
ID INABOX-AU

WHOIS Details

inetnum:        123.51.0.0 - 123.51.127.255
netname:        INABOX-AU
descr:          Telcoinabox Operations Pty Ltd
descr:          L10, 9 Hunter Street, Sydney NSW 2000
country:        AU
org:            ORG-TOPL1-AP
admin-c:        TOPL2-AP
tech-c:         TOPL2-AP
abuse-c:        AI731-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-INABOX-AU
mnt-routes:     MAINT-INABOX-AU
mnt-irt:        IRT-INABOX-AU
last-modified:  2020-11-25T13:04:09Z
source:         APNIC

irt:            IRT-INABOX-AU
address:        L3, 580 George Street, Sydney NSW 2000
e-mail:         abuse@symbionetworks.com
abuse-mailbox:  abuse@symbionetworks.com
admin-c:        TOPL2-AP
tech-c:         TOPL2-AP
auth:           # Filtered
remarks:        abuse@symbionetworks.com was validated on 2025-12-01
mnt-by:         MAINT-INABOX-AU
last-modified:  2025-12-01T04:18:34Z
source:         APNIC

organisation:   ORG-TOPL1-AP
org-name:       Telcoinabox Operations Pty Ltd
org-type:       LIR
country:        AU
address:        L3, 580 George St
phone:          +61-2-82756871
e-mail:         sysadmin@telcoinabox.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-12-20T12:58:47Z
source:         APNIC

role:           ABUSE INABOXAU
country:        ZZ
address:        L3, 580 George Street, Sydney NSW 2000
phone:          +000000000
e-mail:         abuse@symbionetworks.com
admin-c:        TOPL2-AP
tech-c:         TOPL2-AP
nic-hdl:        AI731-AP
remarks:        Generated from irt object IRT-INABOX-AU
remarks:        abuse@symbionetworks.com was validated on 2025-12-01
abuse-mailbox:  abuse@symbionetworks.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-01T04:18:46Z
source:         APNIC

role:           Telcoinabox Operations Pty Ltd administrator
address:        L4, 580 George Street, Sydney NSW 2000
country:        AU
phone:          +61-2-82489034
fax-no:         +61-2-82489034
e-mail:         networkservices@telcoinabox.com
admin-c:        TOPL2-AP
tech-c:         TOPL2-AP
nic-hdl:        TOPL2-AP
mnt-by:         MAINT-INABOX-AU
last-modified:  2019-05-31T05:16:03Z
source:         APNIC

route:          123.51.0.0/17
origin:         AS38333
descr:          Telcoinabox Operations Pty Ltd L4, 580 George St
mnt-by:         MAINT-INABOX-AU
last-modified:  2021-10-18T23:00:22Z
source:         APNIC

route:          123.51.0.0/17
origin:         AS45510
descr:          Telcoinabox Operations Pty Ltd L4, 580 George St
mnt-by:         MAINT-INABOX-AU
last-modified:  2022-02-11T06:16:23Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 123.51.123.0/24

Range ASN Company Num of IPs
123.51.0.0/17 AS38333 Telcoinabox Operations Pty Ltd 32,768
123.51.0.0/17 AS45510 Telcoinabox Operations Pty Ltd 32,768

Nearby Ranges

BGP prefixes that overlap with 123.51.0.0/16

Range ASN Company Num of IPs
123.51.128.0/17 AS4780 New Century InfoComm Tech. Co., Ltd. 32,768
123.51.0.0/17 AS38333 Telcoinabox Operations Pty Ltd 32,768
123.51.128.0/17 AS9919 New Century InfoComm Tech. Co., Ltd. 32,768
123.51.0.0/17 AS45510 Telcoinabox Operations Pty Ltd 32,768
123.51.172.0/22 AS4780 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.220.0/22 AS4780 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.220.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.132.0/22 AS4780 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.160.0/22 AS4780 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.168.0/22 AS4780 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.128.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.132.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.160.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.164.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.168.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.172.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.0.0/24 AS38333 Level 6, 9-13 Young Street 256
123.51.188.0/24 AS9919 New Century InfoComm Tech. Co., Ltd. 256
123.51.193.0/24 AS9919 New Century InfoComm Tech. Co., Ltd. 256
123.51.194.0/24 AS9919 New Century InfoComm Tech. Co., Ltd. 256
123.51.195.0/24 AS9919 New Century InfoComm Tech. Co., Ltd. 256
123.51.181.0/24 AS4780 New Century InfoComm Tech. Co., Ltd. 256
123.51.196.0/24 AS9919 New Century InfoComm Tech. Co., Ltd. 256
123.51.197.0/24 AS9919 New Century InfoComm Tech. Co., Ltd. 256
123.51.198.0/24 AS9919 New Century InfoComm Tech. Co., Ltd. 256
123.51.199.0/24 AS9919 New Century InfoComm Tech. Co., Ltd. 256
123.51.208.0/24 AS9919 New Century InfoComm Tech. Co., Ltd. 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Pingable IPs

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

IP Address ASN Details
123.51.123.81 AS38333 Symbio Networks 0.44ms 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
186.17.98.40 AS23201 Telecel S.A. 2.08ms from Asuncion, PY
72.221.71.232 AS22773 Cox Communications Inc. 10.35ms from Boston, US
112.193.57.184 AS4837 CHINA UNICOM China169 Backbone 3.54ms from Chengdu, CN
204.127.180.200 AS4466 AT&T Enterprises, LLC 1.06ms from Chicago, US
171.243.86.216 AS7552 Viettel Group 18.77ms from Ho Chi Minh City, VN
203.184.226.88 AS9304 HGC Global Communications Limited 1.54ms from Hong Kong, HK
60.161.145.40 AS4134 CHINANET-BACKBONE 12.37ms from Kunming, CN
94.0.207.120 AS5607 Sky UK Limited 2.40ms from London, GB
107.221.218.40 AS7018 AT&T Enterprises, LLC 8.47ms from Miami, US
128.75.244.104 AS52193 EUROCONTACT VELIKY NOVGOROD LLC 10.27ms from Moscow, RU
118.104.133.136 AS18126 Chubu Telecommunications Company, Inc. 5.67ms from Osaka, JP
148.75.149.104 AS6128 Cablevision Systems Corp. 6.50ms from Secaucus, US
118.32.10.216 AS4766 Korea Telecom 1.47ms from Seoul, KR
183.116.34.8 AS4766 Korea Telecom 2.28ms from Seoul, KR
130.73.75.8 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 1.92ms from Berlin, DE
197.39.210.200 AS8452 TE-AS 5.40ms from Cairo, EG
58.22.82.104 AS4837 CHINA UNICOM China169 Backbone 11.07ms from Fuzhou, CN
160.119.187.200 AS36924 GVA Cote d'Ivoire SAS 15.04ms from Lomé, TG
46.65.76.184 AS5607 Sky UK Limited 7.98ms from London, GB
15.228.199.24 AS16509 Amazon.com, Inc. 0.15ms from Osasco, BR
200.142.164.120 AS26104 Telespazio Brasil S.A. 2.09ms from Rio de Janeiro, BR
192.243.41.200 AS55034 IGG.COM 0.29ms from San Jose, US
201.103.237.120 AS8151 UNINET 3.83ms from Santiago de Queretaro, MX
137.131.146.232 AS31898 Oracle Corporation 0.19ms from Sao Paulo, BR
13.125.100.8 AS16509 Amazon.com, Inc. 0.33ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 123.51.123.18
traceroute to 123.51.123.18 (123.51.123.18): 64 hops max, 52 byte packets
1 [AS202422] 103.30.211.1 10.684 ms
2 *
3 *
4 [] 45.127.172.45 0.535 ms
5 *
Measurement taken from IPinfo ProbeNet in Sydney, AU
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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