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	AS4780	New Century InfoComm Tech. Co., Ltd.	32,768
123.51.128.0/17	AS9919	New Century InfoComm Tech. Co., Ltd.	32,768
123.51.0.0/17	AS38333	Telcoinabox Operations Pty Ltd	32,768
123.51.168.0/22	AS4780	New Century InfoComm Tech. Co., Ltd.	1,024
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
123.51.128.0/22	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 no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
123.51.52.116	AS38333 Symbio Networks	`1.38ms` 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
14.188.161.231	AS45899 VNPT Corp	`2.48ms` from Hanoi, VN
117.7.118.7	AS7552 Viettel Group	`17.15ms` from Ho Chi Minh City, VN
95.70.157.7	AS12735 TurkNet Iletisim Hizmetleri A.S.	`17.58ms` from Istanbul, TR
34.35.16.39	AS396982 Google LLC	`0.10ms` from Johannesburg, ZA
46.200.133.55	AS6849 JSC "Ukrtelecom"	`2.45ms` from Kyiv, UA
92.132.72.183	AS3215 Orange S.A.	`15.05ms` from Marseille, FR
15.206.17.231	AS16509 Amazon.com, Inc.	`0.14ms` from Mumbai, IN
140.198.104.247	AS26783 Maricopa County Community College District	`2.74ms` from Phoenix, US
161.153.95.135	AS31898 Oracle Corporation	`1.06ms` from Phoenix, US
35.135.52.7	AS20115 Charter Communications LLC	`12.56ms` from Seattle, US
70.177.227.135	AS22773 Cox Communications Inc.	`9.85ms` from Ashburn, US
121.196.58.199	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.30ms` from Hangzhou, CN
58.242.97.167	AS4837 CHINA UNICOM China169 Backbone	`11.75ms` from Huai'an, CN
1.120.6.167	AS1221 Telstra Limited	`3.54ms` from Melbourne, AU
117.86.167.119	AS4134 CHINANET-BACKBONE	`4.51ms` from Nanjing, CN
87.174.242.231	AS3320 Deutsche Telekom AG	`6.81ms` from Nuernberg, DE
182.166.199.7	AS17511 OPTAGE Inc.	`2.11ms` from Osaka, JP
201.46.31.231	AS28669 VERO S.A	`0.93ms` from Osasco, BR
125.176.222.71	AS17858 LG POWERCOMM	`1.68ms` from Seoul, KR
211.45.162.71	AS4766 Korea Telecom	`0.88ms` from Seoul, KR
1.239.167.167	AS9318 SK Broadband Co Ltd	`1.57ms` from Seoul, KR
58.123.210.23	AS9318 SK Broadband Co Ltd	`1.13ms` from Seoul, KR
54.150.90.135	AS16509 Amazon.com, Inc.	`0.17ms` from Tokyo, JP
73.250.9.167	AS7922 Comcast Cable Communications, LLC	`5.92ms` from Ashburn, US
178.207.128.71	AS28840 PJSC TATTELECOM	`17.20ms` from Chelyabinsk, RU

Traceroute

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

traceroute -a -n -q1 -f6 123.51.52.182

traceroute to 123.51.52.182 (123.51.52.182): 64 hops max, 52 byte packets

6 [AS38333] 123.51.52.182 2.498 ms

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On March 20th 2026

What are IP address ranges?

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