123.51.0.0/17

AS38333 · Symbio Networks

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Summary

Country	Australia
Domain	telcoinabox.com.au
ASN	AS38333
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


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


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 2025-05-08
mnt-by:         MAINT-INABOX-AU
last-modified:  2025-11-18T00:32:01Z
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

Overlapping Ranges

BGP prefixes that are contained by 123.51.0.0/17

Range	ASN	Company	Num of IPs
123.51.0.0/24	AS38333	Level 6, 9-13 Young Street	256

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
123.51.128.0/17	AS9919	New Century InfoComm Tech. Co., 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 97 domain names hosted across 40 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
123.51.34.199	ntlsuppliersystem.com.au	5
123.51.31.216	babylon5.space	2
123.51.31.4	bkx.au	2
123.51.30.131	serenux.com	2
123.51.38.195	bellanailsau.com	2
123.51.31.10	zephan.com.au	1
123.51.54.76	marshallfamily.id.au	1
123.51.31.221	olympustitan.xyz	1
123.51.18.84	oxfordrealestate.com.au	1
123.51.35.156	bisi.com.au	1
123.51.48.20	indrapuri.net	1
123.51.65.32	transtegic.cloud	1
123.51.8.65	3690323.xyz	1
123.51.31.54	steventech.net	1
123.51.29.177	djraid.net	1
123.51.33.40	vandersmagt.com.au	1
123.51.125.23	powers.co.nz	1
123.51.35.97	activepharmacy.com.au	1
123.51.124.30	activefactors.com.au	1
123.51.6.55	sibinbao.net	1

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

3,409 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
123.51.28.80	AS38333 Symbio Networks	`20.91ms` from Sydney, AU
123.51.16.43	AS38333 Symbio Networks	`47.83ms` from Sydney, AU
123.51.105.9	AS45510 TELCOINABOX-AU	`11.75ms` from Sydney, AU
123.51.20.211	AS38333 Symbio Networks	`14.28ms` from Sydney, AU
123.51.34.138	AS38333 Symbio Networks	`14.37ms` from Sydney, AU
123.51.11.48	AS38333 Symbio Networks	`12.69ms` from Sydney, AU
123.51.19.153	AS38333 Symbio Networks	`1.80ms` from Sydney, AU
123.51.63.96	AS38333 Symbio Networks	`12.52ms` from Sydney, AU
123.51.37.239	AS38333 Symbio Networks	`1.90ms` from Sydney, AU
123.51.75.73	AS38333 Symbio Networks	`14.14ms` from Sydney, AU
123.51.48.197	AS38333 Symbio Networks	`6.46ms` from Sydney, AU
123.51.36.3	AS38333 Symbio Networks	`2.18ms` from Sydney, AU
123.51.5.126	AS38333 Symbio Networks	`12.44ms` from Sydney, AU
123.51.120.225	AS38333 Symbio Networks	`11.73ms` from Sydney, AU
123.51.79.45	AS38333 Symbio Networks	`14.10ms` from Sydney, AU
123.51.29.169	AS38333 Symbio Networks	`21.24ms` from Sydney, AU
123.51.0.223	AS38333 Symbio Networks	`23.69ms` from Sydney, AU
123.51.6.57	AS38333 Symbio Networks	`20.86ms` from Sydney, AU
123.51.14.237	AS38333 Symbio Networks	`21.00ms` from Sydney, AU
123.51.107.37	AS38333 Symbio Networks	`12.97ms` from Sydney, AU
123.51.62.220	AS38333 Symbio Networks	`12.23ms` from Sydney, AU
123.51.77.204	AS38333 Symbio Networks	`14.61ms` from Sydney, AU
123.51.15.102	AS38333 Symbio Networks	`52.68ms` from Sydney, AU
123.51.1.112	AS38333 Symbio Networks	`23.73ms` from Sydney, AU
123.51.8.220	AS38333 Symbio Networks	`47.90ms` 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
84.82.155.145	AS1136 KPN B.V.	`2.13ms` from Amsterdam, NL
62.163.235.1	AS33915 Vodafone Libertel B.V.	`1.55ms` from Amsterdam, NL
94.106.175.1	AS47377 Orange Belgium SA	`6.56ms` from Amsterdam, NL
50.111.57.33	AS5650 Frontier Communications of America, Inc.	`14.41ms` from Ashburn, US
73.177.130.1	AS7922 Comcast Cable Communications, LLC	`3.65ms` from Ashburn, US
172.244.148.97	AS7922 Comcast Cable Communications, LLC	`2.64ms` from Ashburn, US
190.147.98.1	AS10620 Telmex Colombia S.A.	`1.83ms` from Bogota, CO
190.157.38.1	AS10620 Telmex Colombia S.A.	`8.29ms` from Bogota, CO
103.187.240.1	AS149841 Lightning IP	`0.41ms` from Brisbane, AU
172.219.64.1	AS852 TELUS Communications Inc.	`1.19ms` from Calgary, CA
117.173.148.33	AS9808 China Mobile Communications Group Co., Ltd.	`3.30ms` from Chengdu, CN
98.209.61.113	AS7922 Comcast Cable Communications, LLC	`13.46ms` from Chicago, US
81.231.143.1	AS3301 Telia Company AB	`1.16ms` from Copenhagen, DK
170.211.59.1	AS21852 State Of Arkansas, Division of Information Systems	`15.07ms` from Dallas, US
68.171.10.17	AS11696 Fusion, LLC	`4.04ms` from Detroit, US
200.249.110.97	AS4230 CLARO S.A.	`12.06ms` from Fortaleza, BR
95.101.176.209	AS16625 Akamai Technologies, Inc.	`0.29ms` from Frankfurt am Main, DE
222.87.181.1	AS4134 CHINANET-BACKBONE	`4.92ms` from Guiyang, CN
203.168.254.1	AS142115 Hong Kong Cable TV Ltd - Cable Multi-Media Services	`0.77ms` from Hong Kong, HK
180.124.96.1	AS4134 CHINANET-BACKBONE	`8.75ms` from Huai'an, CN
58.56.200.177	AS4134 CHINANET-BACKBONE	`4.94ms` from Jinan, CN
154.126.199.177	AS327750 JENNY INTERNET (PTY) LTD	`1.85ms` from Johannesburg, ZA
92.88.230.1	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`11.80ms` from Lausanne, CH
193.136.56.1	AS1930 Fundacao para a Ciencia e a Tecnologia, I.P.	`4.01ms` from Lisbon, PT
206.47.247.1	AS577 Bell Canada	`2.12ms` from Montreal, CA

Traceroute

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

traceroute -a -n -q1 -f2 -m8 123.51.124.106

traceroute to 123.51.124.106 (123.51.124.106): 8 hops max, 52 byte packets

2 [AS50837] 208.111.57.3 0.068 ms

3 *

4 *

5 [AS6939] 66.220.13.49 44.347 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Honolulu, US

On November 14th 2025

What are IP address ranges?

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