123.51.36.0/22

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 123.51.36.0/22

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 6 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
123.51.38.195	edts.cloud	2
123.51.38.49	nurturefilms.com.au	1
123.51.36.93	therock.science	1

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
123.51.39.227	AS38333 Symbio Networks	`1.68ms` from Sydney, AU
123.51.36.3	AS38333 Symbio Networks	`2.19ms` from Sydney, AU
123.51.38.29	AS38333 Symbio Networks	`1.71ms` from Sydney, AU
123.51.37.219	AS38333 Symbio Networks	`1.97ms` 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
86.108.41.182	AS8376 Jordan Data Communications Company LLC	`1.44ms` from Amman, JO
31.187.235.54	AS50266 Odido Netherlands B.V.	`4.07ms` from Amsterdam, NL
71.62.248.86	AS7922 Comcast Cable Communications, LLC	`9.72ms` from Ashburn, US
38.96.13.150	AS174 Cogent Communications, LLC	`0.22ms` from Boston, US
162.195.80.150	AS7018 AT&T Enterprises, LLC	`10.76ms` from Chicago, US
50.190.103.134	AS7922 Comcast Cable Communications, LLC	`3.46ms` from Denver, US
102.119.251.70	AS23889 Mauritius Telecom Ltd	`3.24ms` from Ebene, MU
87.142.59.134	AS3320 Deutsche Telekom AG	`4.11ms` from Frankfurt am Main, DE
113.9.210.150	AS4837 CHINA UNICOM China169 Backbone	`4.87ms` from Harbin, CN
96.91.49.86	AS7922 Comcast Cable Communications, LLC	`9.34ms` from Houston, US
50.254.125.198	AS7922 Comcast Cable Communications, LLC	`7.78ms` from Houston, US
81.162.30.134	AS47530 Novokuznetsk Telecom Ltd	`7.26ms` from Novosibirsk, RU
180.45.121.166	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.25ms` from Osaka, JP
86.247.4.150	AS3215 Orange S.A.	`1.63ms` from Paris, FR
72.50.10.230	AS10396 DATACOM CARIBE, INC.	`0.70ms` from San Juan, PR
119.202.86.150	AS4766 Korea Telecom	`6.44ms` from Seoul, KR
118.165.133.166	AS3462 Data Communication Business Group	`2.46ms` from Taipei, TW
220.57.23.182	AS17676 SoftBank Corp.	`3.60ms` from Tokyo, JP
60.69.211.182	AS17676 SoftBank Corp.	`2.87ms` from Tokyo, JP
113.29.12.118	AS3549 Level 3 Parent, LLC	`0.25ms` from Tokyo, JP
91.177.166.118	AS5432 Proximus NV	`3.77ms` from Brussels, BE
38.154.48.102	AS55286 B2 Net Solutions Inc.	`0.13ms` from Buffalo, US
101.204.81.246	AS4837 CHINA UNICOM China169 Backbone	`3.06ms` from Chengdu, CN
9.205.36.102	AS8075 Microsoft Corporation	`2.40ms` from Copenhagen, DK
35.226.21.70	AS396982 Google LLC	`0.10ms` from Council Bluffs, US

Traceroute

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

traceroute -a -n -q1 -f3 123.51.39.201

traceroute to 123.51.39.201 (123.51.39.201): 64 hops max, 52 byte packets

3 [] 103.26.69.78 1.256 ms

4 [AS38333] 123.51.39.201 1.913 ms

Measurement taken from

IPinfo ProbeNet in Sydney, AU

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.

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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