1. All IP Ranges
  2. 123.0.0.0/8
  3. 123.51.0.0/16
  4. AS38333  | 123.51.36.0/22

123.51.36.0/22

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 123.51.36.0/22

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 8 domain names hosted across 7 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
123.51.38.195 edts.cloud 2
123.51.37.245 synapteca.ai 1
123.51.36.93 therock.science 1
123.51.38.49 nurturefilms.com.au 1
123.51.37.197 robrayner.com 1
123.51.37.136 mywebsitedesigns.com.au 1
123.51.36.25 radiata5.casa 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

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

IP Address ASN Details
123.51.38.29 AS38333 Symbio Networks 1.65ms from Sydney, AU
123.51.36.3 AS38333 Symbio Networks 1.98ms from Sydney, AU
123.51.39.67 AS38333 Symbio Networks 1.69ms from Sydney, AU
123.51.37.108 AS38333 Symbio Networks 1.78ms 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
77.61.100.214 AS1136 KPN B.V. 1.86ms from Amsterdam, NL
13.92.23.134 AS8075 Microsoft Corporation 0.44ms from Ashburn, US
210.48.31.118 AS4770 ICONZ Ltd 0.54ms from Auckland, NZ
103.90.225.54 AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP 0.33ms from Ho Chi Minh City, VN
78.153.231.150 AS30781 Free Pro SAS 0.45ms from Marseille, FR
95.244.128.70 AS3269 Telecom Italia S.p.A. 1.40ms from Milan, IT
37.76.161.198 AS12389 PJSC Rostelecom 10.46ms from Moscow, RU
115.36.156.70 AS18126 Chubu Telecommunications Company, Inc. 6.55ms from Osaka, JP
32.209.121.230 AS46690 Southern New England Telephone Company and SNET America, Inc. 9.04ms from Secaucus, US
47.119.121.230 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.39ms from Shenzhen, CN
80.171.254.182 AS6805 Telefonica Germany GmbH & Co.OHG 4.00ms from Duesseldorf, DE
137.74.237.214 AS16276 OVH SAS 0.09ms from Gravelines, FR
27.66.230.54 AS7552 Viettel Group 6.42ms from Hanoi, VN
8.155.169.70 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.22ms from Heyuan, CN
185.109.42.6 AS204258 Vive Technologies Ltd 8.33ms from London, GB
81.34.64.38 AS3352 TELEFONICA DE ESPANA S.A.U. 1.77ms from Madrid, ES
80.76.238.198 AS39156 First Telecom Ltd 0.94ms from Moscow, RU
85.166.65.166 AS2119 Telenor Norge AS 6.14ms from Oslo, NO
50.247.238.22 AS7922 Comcast Cable Communications, LLC 6.05ms from Providence, US
112.251.5.134 AS4837 CHINA UNICOM China169 Backbone 5.08ms from Qingdao, CN
99.64.158.6 AS7018 AT&T Enterprises, LLC 3.90ms from San Jose, US
177.30.22.198 AS26615 TIM S/A 2.70ms from Sao Paulo, BR
208.100.135.54 AS4181 TDS TELECOM 7.13ms from Seattle, US
211.191.114.6 AS4670 Shinbiro 1.00ms from Seoul, KR
59.36.94.38 AS4134 CHINANET-BACKBONE 1.31ms from Shenzhen, CN

Traceroute

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

$
traceroute -a -n -q1 -f3 123.51.38.102
traceroute to 123.51.38.102 (123.51.38.102): 64 hops max, 52 byte packets
3 [] 103.26.69.78 1.308 ms
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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