123.51.54.0/24

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 123.51.54.0/24

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

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
123.51.54.132	AS38333 Symbio Networks	`1.62ms` 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
76.187.156.168	AS11427 Charter Communications Inc	`12.68ms` from Dallas, US
198.53.201.120	AS852 TELUS Communications Inc.	`1.50ms` from Edmonton, CA
73.55.205.24	AS7922 Comcast Cable Communications, LLC	`3.69ms` from Houston, US
14.79.255.104	AS4766 Korea Telecom	`4.72ms` from Incheon, KR
77.128.193.104	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`12.56ms` from Milan, IT
86.66.69.136	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`2.32ms` from Paris, FR
54.183.3.232	AS16509 Amazon.com, Inc.	`0.14ms` from San Jose, US
63.146.3.120	AS209 CenturyLink Communications, LLC	`1.27ms` from Ashburn, US
46.103.123.120	AS3329 Vodafone-panafon Hellenic Telecommunications Company SA	`4.92ms` from Athens, GR
184.80.246.152	AS7029 Windstream Communications LLC	`8.04ms` from Atlanta, US
212.87.48.40	AS12512 CBXNET combox internet GmbH	`0.24ms` from Berlin, DE
196.207.169.200	AS15399 Wananchi Group (Kenya) Limited	`3.78ms` from Nairobi, KE
126.123.131.72	AS17676 SoftBank Corp.	`14.48ms` from Osaka, JP
54.157.175.136	AS14618 Amazon.com, Inc.	`0.49ms` from Reston, US
54.88.183.72	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
58.111.120.8	AS4804 Microplex PTY LTD	`4.38ms` from Sydney, AU
111.246.3.152	AS3462 Data Communication Business Group	`1.68ms` from Taichung, TW
36.55.115.56	AS10013 FreeBit Co.,Ltd.	`2.54ms` from Tokyo, JP
54.168.132.248	AS16509 Amazon.com, Inc.	`0.24ms` from Tokyo, JP
116.91.89.136	AS2519 ARTERIA Networks Corporation	`6.13ms` from Tokyo, JP
113.44.213.232	AS55990 Huawei Cloud Service data center	`3.96ms` from Beijing, CN
52.150.227.8	AS8075 Microsoft Corporation	`2.73ms` from Denver, US
14.163.40.120	AS45899 VNPT Corp	`4.11ms` from Hanoi, VN
86.229.60.72	AS3215 Orange S.A.	`1.46ms` from Marseille, FR
203.22.144.248	AS56105 Department of Education and Training - Victoria	`1.16ms` from Melbourne, AU

Traceroute

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

traceroute -a -n -q1 -f3 123.51.54.110

traceroute to 123.51.54.110 (123.51.54.110): 64 hops max, 52 byte packets

3 [] 45.127.172.45 0.891 ms

4 [AS38333] 123.51.54.110 4.869 ms

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On April 24th 2026

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.

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