123.51.52.0/23

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 123.51.52.0/23

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
123.51.160.0/22	AS4780	9F,No.468,Rueiguang Rd.,	1,024
123.51.132.0/22	AS4780	9F,No.468,Rueiguang Rd.,	1,024
123.51.220.0/22	AS4780	No.218,Rueiguang Rd.,	1,024
123.51.160.0/22	AS9919	9F,No.468,Rueiguang Rd.,	1,024
123.51.168.0/22	AS4780	No.218,Rueiguang Rd.,	1,024
123.51.172.0/22	AS4780	9F,No.468,Rueiguang Rd.,	1,024
123.51.220.0/22	AS9919	No.218,Rueiguang Rd.,	1,024
123.51.164.0/22	AS9919	No.218,Rueiguang Rd.,	1,024
123.51.172.0/22	AS9919	9F,No.468,Rueiguang Rd.,	1,024
123.51.128.0/22	AS9919	9F,No.468,Rueiguang Rd.,	1,024
123.51.132.0/22	AS9919	9F,No.468,Rueiguang Rd.,	1,024
123.51.168.0/22	AS9919	No.218,Rueiguang Rd.,	1,024
123.51.199.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.193.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.196.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.188.0/24	AS9919	N/A	256
123.51.0.0/24	AS38333	Level 6, 9-13 Young Street	256
123.51.194.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.181.0/24	AS4780	13F., No.210, Sec. 1, Sanmin Rd.,Banqiao Dist., New Taipei City, Taiwan (R.O.C.)	256
123.51.198.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.195.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.208.0/24	AS9919	2F.,No.6,Aly.30,Ln.210,WendeRd.,NeihuDist.,TaipeiCity114,Taiwan(R.O.C.)	256
123.51.197.0/24	AS9919	9F,No.468,Rueiguang Rd.,	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

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

IP Address	ASN	Details
123.51.53.108	AS38333 Symbio Networks	`2.01ms` from Sydney, AU
123.51.52.116	AS38333 Symbio Networks	`1.74ms` 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
92.47.113.247	AS9198 JSC Kazakhtelecom	`9.37ms` from Almaty, KZ
34.222.151.247	AS16509 Amazon.com, Inc.	`0.22ms` from Boardman, US
52.11.184.7	AS16509 Amazon.com, Inc.	`0.39ms` from Boardman, US
23.244.25.87	AS11776 Breezeline	`12.68ms` from Chicago, US
34.173.78.199	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
4.223.155.167	AS8075 Microsoft Corporation	`0.18ms` from Gaevle, SE
64.126.54.55	AS18712 Everfast Fiber Networks LLC	`6.48ms` from Kansas City, US
107.217.116.119	AS7018 AT&T Enterprises, LLC	`17.32ms` from Los Angeles, US
142.251.152.119	AS15169 Google LLC	`0.09ms` from Melbourne, AU
35.137.204.23	AS33363 Charter Communications, Inc	`11.43ms` from Orlando, US
15.165.201.103	AS16509 Amazon.com, Inc.	`0.66ms` from Seoul, KR
4.230.4.71	AS8075 Microsoft Corporation	`0.33ms` from Seoul, KR
90.238.219.167	AS3301 Telia Company AB	`15.53ms` from Stockholm, SE
133.130.54.7	AS7506 GMO Internet Group, Inc.	`0.39ms` from Tokyo, JP
216.62.161.135	AS7018 AT&T Enterprises, LLC	`9.47ms` from Atlanta, US
202.80.245.7	AS45458 SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIX	`3.99ms` from Bangkok, TH
18.188.88.55	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
14.165.112.103	AS45899 VNPT Corp	`5.38ms` from Da Nang, VN
5.71.172.71	AS5607 Sky UK Limited	`3.45ms` from Erith, GB
112.27.178.7	AS9808 China Mobile Communications Group Co., Ltd.	`2.16ms` from Huainan, CN
124.57.206.167	AS17858 LG POWERCOMM	`2.24ms` from Incheon, KR
194.153.24.183	AS5413 Wavenet Limited	`9.12ms` from London, GB
67.14.243.55	AS23089 Hotwire Communications	`2.26ms` from Miami, US
104.83.130.7	AS6762 TELECOM ITALIA SPARKLE S.p.A.	`0.19ms` from Palermo, IT
49.192.143.135	AS4804 Microplex PTY LTD	`4.20ms` from Perth, AU

Traceroute

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

traceroute -a -n -q1 -f6 123.51.52.155

traceroute to 123.51.52.155 (123.51.52.155): 64 hops max, 52 byte packets

6 [AS38333] 123.51.52.155 3.148 ms

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On April 13th 2026

What are IP address ranges?

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