123.51.14.0/23

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:         [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 contain 123.51.14.0/23

Range	ASN	Company	Num of IPs
123.51.0.0/17	AS38333	Telcoinabox Operations Pty Ltd	32,768
123.51.0.0/17	AS45510	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
123.51.0.0/17	AS38333	Telcoinabox Operations Pty Ltd	32,768
123.51.128.0/17	AS9919	New Century InfoComm Tech. Co., Ltd.	32,768
123.51.0.0/17	AS45510	Telcoinabox Operations Pty 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 no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
123.51.14.14	AS38333 Symbio Networks	`21.00ms` from Sydney, AU
123.51.15.102	AS38333 Symbio Networks	`52.49ms` 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
130.127.48.71	AS12148 Clemson University	`3.45ms` from Atlanta, US
103.212.182.39	AS135290 SAN-IDC	`0.41ms` from Bangkok, TH
44.244.59.119	AS16509 Amazon.com, Inc.	`0.56ms` from Boardman, US
14.198.142.7	AS9269 Hong Kong Broadband Network Ltd.	`1.09ms` from Hong Kong, HK
92.19.251.199	AS13285 TalkTalk Communications Limited	`5.35ms` from London, GB
2.223.134.247	AS5607 Sky UK Limited	`11.48ms` from London, GB
80.29.178.119	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.59ms` from Madrid, ES
181.133.82.135	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`11.69ms` from Medellin, CO
191.91.5.199	AS27831 Colombia Móvil	`8.49ms` from Medellin, CO
89.23.210.199	AS51042 Klimovsk network Ltd	`1.40ms` from Moscow, RU
119.228.244.135	AS17511 OPTAGE Inc.	`3.06ms` from Osaka, JP
133.18.211.119	AS24282 KAGOYA JAPAN Inc.	`1.04ms` from Osaka, JP
54.166.97.39	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
217.28.49.87	AS28886 RETN Limited	`0.17ms` from Riga, LV
95.242.71.103	AS3269 Telecom Italia S.p.A.	`2.46ms` from Rome, IT
216.215.57.23	AS46392 Grant County Powernet, Inc.	`13.00ms` from Seattle, US
120.124.121.151	AS1659 Taiwan Academic Network (TANet) Information Center	`1.84ms` from Taipei, TW
114.178.216.183	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.51ms` from Tokyo, JP
88.209.240.39	AS5650 Frontier Communications of America, Inc.	`0.36ms` from Ashburn, US
209.101.219.167	AS5650 Frontier Communications of America, Inc.	`0.44ms` from Ashburn, US
125.236.58.167	AS4648 Global-Gateway Internet	`14.04ms` from Auckland, NZ
75.157.207.167	AS852 TELUS Communications Inc.	`12.73ms` from Edmonton, CA
87.161.17.71	AS3320 Deutsche Telekom AG	`7.90ms` from Frankfurt am Main, DE
183.44.232.7	AS140308 CHINATELECOM Guangdong province Zhuhai 5G network	`6.71ms` from Guangzhou, CN
45.197.32.7	AS9294 GNET INC.	`0.90ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 -f3 123.51.15.103

traceroute to 123.51.15.103 (123.51.15.103): 64 hops max, 52 byte packets

3 [] 103.26.69.78 1.095 ms

4 [AS38333] 123.51.15.103 65.36 ms

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On December 6th 2025

What are IP address ranges?

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