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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        TOPL2-AP
tech-c:         TOPL2-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
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:         [email protected]
admin-c:        TOPL2-AP
tech-c:         TOPL2-AP
nic-hdl:        AI731-AP
remarks:        Generated from irt object IRT-INABOX-AU
remarks:        [email protected] was validated on 2025-12-01
abuse-mailbox:  [email protected]
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:         [email protected]
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 95 domain names hosted across 46 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	twfcsuppliersystems.com.au	8
123.51.77.151	courtgem.com	4
123.51.5.246	ace1.com.au	3
123.51.31.216	babylon5.space	2
123.51.30.131	serenux.com	2
123.51.31.4	bkx.au	2
123.51.11.249	blackproducts.online	1
123.51.125.25	franks.com.au	1
123.51.48.20	indrapuri.net	1
123.51.74.218	toroof.top	1
123.51.36.93	therock.science	1
123.51.30.252	shaunjo6971.com	1
123.51.29.177	djraid.net	1
123.51.37.136	mywebsitedesigns.com.au	1
123.51.35.156	bisi.com.au	1
123.51.12.176	hansnicki.com.au	1
123.51.54.76	marshallfamily.id.au	1
123.51.2.23	harmbase.com	1
123.51.33.40	vandersmagt.com.au	1
123.51.125.23	powers.co.nz	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

3,506 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
123.51.13.112	AS38333 Symbio Networks	`14.21ms` from Sydney, AU
123.51.79.45	AS38333 Symbio Networks	`14.41ms` from Sydney, AU
123.51.76.38	AS38333 Symbio Networks	`14.32ms` from Sydney, AU
123.51.18.54	AS38333 Symbio Networks	`1.88ms` from Sydney, AU
123.51.69.224	AS38333 Symbio Networks	`2.00ms` from Sydney, AU
123.51.36.3	AS38333 Symbio Networks	`1.97ms` from Sydney, AU
123.51.35.164	AS38333 Symbio Networks	`14.65ms` from Sydney, AU
123.51.48.197	AS38333 Symbio Networks	`6.54ms` from Sydney, AU
123.51.31.22	AS38333 Symbio Networks	`1.67ms` from Sydney, AU
123.51.68.223	AS38333 Symbio Networks	`2.25ms` from Sydney, AU
123.51.30.25	AS38333 Symbio Networks	`1.95ms` from Sydney, AU
123.51.19.153	AS38333 Symbio Networks	`1.80ms` from Sydney, AU
123.51.107.37	AS38333 Symbio Networks	`12.95ms` from Sydney, AU
123.51.123.17	AS38333 Symbio Networks	`0.51ms` from Sydney, AU
123.51.21.57	AS38333 Symbio Networks	`14.25ms` from Sydney, AU
123.51.110.69	AS38333 Symbio Networks	`0.46ms` from Sydney, AU
123.51.64.108	AS38333 Symbio Networks	`20.69ms` from Sydney, AU
123.51.2.45	AS38333 Symbio Networks	`1.66ms` from Sydney, AU
123.51.28.226	AS38333 Symbio Networks	`20.84ms` from Sydney, AU
123.51.63.39	AS38333 Symbio Networks	`12.45ms` from Sydney, AU
123.51.16.43	AS38333 Symbio Networks	`47.46ms` from Sydney, AU
123.51.17.118	AS38333 Symbio Networks	`6.32ms` from Sydney, AU
123.51.62.220	AS38333 Symbio Networks	`12.40ms` from Sydney, AU
123.51.14.14	AS38333 Symbio Networks	`21.00ms` from Sydney, AU
123.51.8.245	AS38333 Symbio Networks	`47.97ms` 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
151.236.93.1	AS204720 GLOBAL CLOUD NETWORK LLC	`0.23ms` from Almaty, KZ
145.90.60.1	AS1103 SURF B.V.	`0.54ms` from Amsterdam, NL
80.57.223.1	AS33915 Vodafone Libertel B.V.	`3.98ms` from Amsterdam, NL
209.158.223.1	AS701 Verizon Business	`9.21ms` from Ashburn, US
162.141.40.113	AS7029 Windstream Communications LLC	`0.38ms` from Ashburn, US
165.166.235.145	AS10279 West Carolina Communications, LLC	`4.33ms` from Atlanta, US
107.150.68.1	AS63119 Angelnet Limited	`0.69ms` from Atlanta, US
73.31.6.1	AS7922 Comcast Cable Communications, LLC	`12.32ms` from Atlanta, US
60.24.16.1	AS4837 CHINA UNICOM China169 Backbone	`6.99ms` from Beijing, CN
186.87.102.1	AS10620 Telmex Colombia S.A.	`3.72ms` from Bogota, CO
207.172.211.1	AS6079 RCN	`1.22ms` from Boston, US
24.60.96.1	AS7922 Comcast Cable Communications, LLC	`2.80ms` from Boston, US
94.226.80.1	AS6848 Telenet BV	`3.42ms` from Brussels, BE
181.29.130.1	AS7303 Telecom Argentina S.A.	`11.81ms` from Buenos Aires, AR
181.229.180.1	AS7303 Telecom Argentina S.A.	`4.41ms` from Buenos Aires, AR
190.191.84.1	AS7303 Telecom Argentina S.A.	`1.88ms` from Buenos Aires, AR
107.15.253.1	AS11426 Charter Communications Inc	`8.39ms` from Charlotte, US
209.197.82.193	AS13428 Surf Air Wireless, LLC	`2.68ms` from Chicago, US
206.206.168.1	AS399356 Kosciusko Connect LLC	`3.40ms` from Chicago, US
147.0.35.209	AS10796 Charter Communications Inc	`3.40ms` from Columbus, US
66.114.166.65	AS16509 Amazon.com, Inc.	`0.85ms` from Columbus, US
213.154.79.145	AS8346 SONATEL-AS Autonomous System	`1.41ms` from Dakar, SN
66.94.169.17	AS17306 JAB Wireless, INC.	`12.09ms` from Dallas, US
76.107.192.1	AS7922 Comcast Cable Communications, LLC	`18.51ms` from Dallas, US
69.2.159.241	AS12011 Thompson School District	`2.17ms` from Denver, US

Traceroute

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

traceroute -a -n -q1 -f2 -m6 123.51.127.161

traceroute to 123.51.127.161 (123.51.127.161): 6 hops max, 52 byte packets

2 [AS15766] 83.218.0.130 15.329 ms

3 [] 195.66.238.214 23.744 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Ballasalla, IM

On December 6th 2025

What are IP address ranges?

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