123.51.50.0/24

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 123.51.50.0/24

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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
108.179.243.248	AS31898 Oracle Corporation	`0.32ms` from Ashburn, US
61.181.2.24	AS4837 CHINA UNICOM China169 Backbone	`5.18ms` from Beijing, CN
118.251.6.168	AS4134 CHINANET BACKBONE	`5.89ms` from Changsha, CN
93.167.66.232	AS3292 TDC Holding A/S	`1.31ms` from Copenhagen, DK
24.41.49.24	AS7029 Windstream Communications LLC	`0.36ms` from Dallas, US
52.211.232.8	AS16509 Amazon.com, Inc.	`0.20ms` from Dublin, IE
82.5.13.8	AS5089 Virgin Media Limited	`4.79ms` from Erith, GB
66.160.159.8	AS6939 Hurricane Electric LLC	`0.20ms` from Fremont, US
216.36.213.248	AS46410 Central Florida Electric Cooperative, Inc.	`9.88ms` from Miami, US
46.180.251.56	AS39927 E-Light-Telecom Ltd.	`7.25ms` from Novosibirsk, RU
109.80.169.40	AS5610 O2 Czech Republic, a.s.	`5.40ms` from Prague, CZ
34.176.50.248	AS396982 Google LLC	`0.11ms` from Santiago, CL
76.147.236.104	AS7922 Comcast Cable Communications, LLC	`5.46ms` from Seattle, US
121.176.176.200	AS4766 Korea Telecom	`7.13ms` from Seoul, KR
5.223.47.88	AS215859 Hetzner Online GmbH	`0.21ms` from Singapore, SG
85.24.181.168	AS8473 Bahnhof AB	`5.67ms` from Stockholm, SE
162.241.76.104	AS19871 Network Solutions, LLC	`0.34ms` from Atlanta, US
117.243.168.200	AS9829 National Internet Backbone	`13.93ms` from Bengaluru, IN
125.68.133.232	AS4134 CHINANET BACKBONE	`6.13ms` from Chengdu, CN
177.193.105.168	AS28573 Claro NXT Telecomunicacoes Ltda	`14.35ms` from Fortaleza, BR
116.81.28.88	AS18144 Enecom,Inc.	`6.19ms` from Hiroshima, JP
108.188.166.136	AS33363 Charter Communications, Inc	`9.14ms` from Orlando, US
125.8.103.72	AS9824 JCOM Co., Ltd.	`12.98ms` from Osaka, JP
82.127.226.88	AS3215 Orange S.A.	`1.97ms` from Paris, FR
109.188.138.88	AS31213 PJSC MegaFon	`13.98ms` from Saint Petersburg, RU

Traceroute

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

traceroute -a -n -q1 -f4 -m8 123.51.50.39

traceroute to 123.51.50.39 (123.51.50.39): 8 hops max, 52 byte packets

4 [AS63949] 172.105.160.101 1.579 ms

5 [AS63949] 172.105.160.9 0.494 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On April 25th 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.

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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