123.51.115.0/24

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:         [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 123.51.115.0/24

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

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
84.83.14.152	AS1136 KPN B.V.	`2.13ms` from Amsterdam, NL
31.20.214.168	AS50266 Odido Netherlands B.V.	`4.89ms` from Amsterdam, NL
155.146.49.88	AS6167 Verizon Business	`1.75ms` from Atlanta, US
77.33.43.40	AS44869 FIBIA P/S	`1.37ms` from Copenhagen, DK
87.129.107.40	AS3320 Deutsche Telekom AG	`0.69ms` from Frankfurt am Main, DE
119.179.77.8	AS4837 CHINA UNICOM China169 Backbone	`10.14ms` from Jinan, CN
171.48.37.232	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.48ms` from Lohogaon, IN
195.32.58.248	AS205005 Micso s.r.l.	`3.48ms` from Milan, IT
73.196.146.168	AS7922 Comcast Cable Communications, LLC	`8.27ms` from New York City, US
85.165.244.104	AS2119 Telenor Norge AS	`5.54ms` from Oslo, NO
37.119.53.24	AS30722 Vodafone Italia S.p.A.	`10.17ms` from Rome, IT
80.88.58.72	AS12389 PJSC Rostelecom	`1.31ms` from Saint Petersburg, RU
118.45.34.56	AS4766 Korea Telecom	`6.96ms` from Seoul, KR
130.88.250.120	AS786 Jisc Services Limited	`4.26ms` from Sheffield, GB
220.141.200.72	AS3462 Data Communication Business Group	`1.05ms` from Taipei, TW
153.205.157.248	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.53ms` from Tokyo, JP
23.117.100.88	AS7018 AT&T Enterprises, LLC	`9.58ms` from Atlanta, US
115.99.201.8	AS17488 Hathway IP Over Cable Internet	`1.16ms` from Bengaluru, IN
34.208.9.232	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
179.12.239.88	AS27831 Colombia Móvil	`7.80ms` from Bogota, CO
1.31.236.120	AS4837 CHINA UNICOM China169 Backbone	`15.88ms` from Changchun, CN
83.112.118.200	AS3215 Orange S.A.	`11.21ms` from Frankfurt am Main, DE
84.251.14.104	AS1759 Telia Finland Oyj	`3.30ms` from Helsinki, FI
94.46.25.8	AS24768 ALMOUROLTEC SERVICOS DE INFORMATICA E INTERNET LDA	`0.16ms` from Lisbon, PT
134.117.252.200	AS29773 Carleton University	`4.14ms` from Montreal, CA

Traceroute

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

traceroute -a -n -q1 -m9 123.51.115.244

traceroute to 123.51.115.244 (123.51.115.244): 9 hops max, 52 byte packets

1 [AS15169] 142.251.228.106 92.884 ms

2 [AS15169] 192.178.97.214 93.698 ms

3 *

4 *

5 *

6 [AS45510] 202.93.98.254 106.536 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On December 20th 2025

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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