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

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

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 2025-05-08
abuse-mailbox:  abuse@symbionetworks.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-05-08T06:45:18Z
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 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

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

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

IP Address	ASN	Details
123.51.7.124	AS38333 Symbio Networks	`21.45ms` from Sydney, AU
123.51.17.219	AS38333 Symbio Networks	`6.39ms` from Sydney, AU
123.51.120.225	AS38333 Symbio Networks	`11.73ms` from Sydney, AU
123.51.2.107	AS38333 Symbio Networks	`1.70ms` from Sydney, AU
123.51.15.102	AS38333 Symbio Networks	`52.68ms` from Sydney, AU
123.51.35.164	AS38333 Symbio Networks	`14.54ms` from Sydney, AU
123.51.21.57	AS38333 Symbio Networks	`14.49ms` from Sydney, AU
123.51.79.45	AS38333 Symbio Networks	`14.10ms` from Sydney, AU
123.51.9.83	AS38333 Symbio Networks	`48.02ms` from Sydney, AU
123.51.13.112	AS38333 Symbio Networks	`14.18ms` from Sydney, AU
123.51.123.17	AS38333 Symbio Networks	`0.43ms` from Sydney, AU
123.51.28.80	AS38333 Symbio Networks	`20.91ms` from Sydney, AU
123.51.68.58	AS38333 Symbio Networks	`2.17ms` from Sydney, AU
123.51.108.23	AS38333 Symbio Networks	`13.59ms` from Sydney, AU
123.51.78.60	AS38333 Symbio Networks	`14.49ms` from Sydney, AU
123.51.5.126	AS38333 Symbio Networks	`12.44ms` from Sydney, AU
123.51.14.237	AS38333 Symbio Networks	`21.00ms` from Sydney, AU
123.51.38.29	AS38333 Symbio Networks	`1.52ms` from Sydney, AU
123.51.19.153	AS38333 Symbio Networks	`1.80ms` from Sydney, AU
123.51.10.35	AS38333 Symbio Networks	`14.33ms` from Sydney, AU
123.51.64.108	AS38333 Symbio Networks	`20.84ms` from Sydney, AU
123.51.63.96	AS38333 Symbio Networks	`12.52ms` from Sydney, AU
123.51.12.162	AS38333 Symbio Networks	`1.55ms` from Sydney, AU
123.51.4.196	AS38333 Symbio Networks	`14.05ms` from Sydney, AU
123.51.1.112	AS38333 Symbio Networks	`23.73ms` 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
145.109.196.1	AS1124 Universiteit van Amsterdam	`0.76ms` from Amsterdam, NL
84.27.134.1	AS33915 Vodafone Libertel B.V.	`4.46ms` from Amsterdam, NL
24.153.38.1	AS11776 Breezeline	`3.99ms` from Ashburn, US
98.169.28.1	AS22773 Cox Communications Inc.	`1.29ms` from Ashburn, US
46.70.40.225	AS6079 RCN	`1.54ms` from Ashburn, US
60.234.6.1	AS9790 Two Degrees Networks Limited	`0.34ms` from Auckland, NZ
222.124.84.1	AS7713 PT Telekomunikasi Indonesia	`8.28ms` from Batam, ID
111.200.124.1	AS4808 China Unicom Beijing Province Network	`3.64ms` from Beijing, CN
103.83.28.17	AS150633 MARUTHI INTERNET PRIVATE LIMITED	`0.52ms` from Bengaluru, IN
190.147.98.1	AS10620 Telmex Colombia S.A.	`1.83ms` from Bogota, CO
70.188.172.1	AS22773 Cox Communications Inc.	`3.25ms` from Boston, US
35.205.48.193	AS396982 Google LLC	`0.14ms` from Brussels, BE
188.157.250.161	AS5483 Magyar Telekom Plc.	`5.13ms` from Budapest, HU
91.232.152.1	AS57514 Cloudbase Solutions Srl	`4.29ms` from Budapest, HU
209.197.82.193	AS13428 Surf Air Wireless, LLC	`2.68ms` from Chicago, US
63.239.243.1	AS209 CenturyLink Communications, LLC	`19.64ms` from Chicago, US
184.18.88.1	AS5650 Frontier Communications of America, Inc.	`4.08ms` from Chicago, US
81.231.143.1	AS3301 Telia Company AB	`1.16ms` from Copenhagen, DK
62.107.196.1	AS39642 Norlys Digital A/S	`0.43ms` from Copenhagen, DK
213.154.79.145	AS8346 SONATEL-AS Autonomous System	`1.47ms` from Dakar, SN
129.119.40.33	AS1832 Southern Methodist University	`1.31ms` from Dallas, US
67.176.125.113	AS7922 Comcast Cable Communications, LLC	`4.53ms` from Denver, US
80.135.98.193	AS3320 Deutsche Telekom AG	`4.24ms` from Duesseldorf, DE
79.193.122.177	AS3320 Deutsche Telekom AG	`2.79ms` from Frankfurt am Main, DE
135.116.209.81	AS8075 Microsoft Corporation	`0.21ms` from Gaevle, SE

Traceroute

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

traceroute -a -n -q1 -f3 123.51.5.38

traceroute to 123.51.5.38 (123.51.5.38): 64 hops max, 52 byte packets

3 [] 45.127.172.45 0.823 ms

4 [AS38333] 123.51.5.38 13.13 ms

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On November 14th 2025

What are IP address ranges?

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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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