123.103.40.0/21

AS23724 · IDC, China Telecommunications Corporation

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Summary

Country	China
Domain	chinanetcenter.com
ASN	AS23724
Registry	APNIC
ID	CHINANETCENTER

WHOIS Details

inetnum:        123.103.0.0 - 123.103.127.255
netname:        CHINANETCENTER
descr:          ChinaNetCenter Ltd.
country:        CN
admin-c:        ZM1723-AP
tech-c:         ZM1723-AP
abuse-c:        AC1601-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-CNNIC-AP
mnt-irt:        IRT-CNNIC-CN
last-modified:  2021-06-16T01:25:20Z
source:         APNIC

irt:            IRT-CNNIC-CN
address:        Beijing, China
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        IP50-AP
tech-c:         IP50-AP
auth:           # Filtered
remarks:        Please note that CNNIC is not an ISP and is not
remarks:        empowered to investigate complaints of network abuse.
remarks:        Please contact the tech-c or admin-c of the network.
remarks:        [email protected] is invalid
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-11-17T23:08:37Z
source:         APNIC

role:           ABUSE CNNICCN
country:        ZZ
address:        Beijing, China
phone:          +000000000
e-mail:         [email protected]
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        AC1601-AP
remarks:        Generated from irt object IRT-CNNIC-CN
remarks:        [email protected] is invalid
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-19T17:20:32Z
source:         APNIC

person:         Zhong Xing
address:        4G Guomen Building, Sanyuan Bridge Dongsanhuan, Beijing
country:        CN
phone:          +86-010-84519900
e-mail:         [email protected]
nic-hdl:        ZM1723-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2018-02-08T03:47:19Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 123.103.0.0/16

Range	ASN	Company	Num of IPs
123.103.128.0/18	AS7690	Amixcom Inc.	16,384
123.103.192.0/19	AS4826	VOCUS PTY LTD	8,192
123.103.224.0/20	AS7690	Amixcom Inc.	4,096
123.103.243.0/24	AS38478	SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong	256
123.103.244.0/24	AS38478	SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong	256
123.103.245.0/24	AS38478	SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong	256
123.103.246.0/24	AS38478	SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong	256
123.103.240.0/24	AS38478	SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong	256
123.103.248.0/24	AS38478	SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong	256
123.103.249.0/24	AS38478	SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong	256
123.103.250.0/24	AS38478	SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong	256
123.103.254.0/24	AS38478	SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong	256
123.103.247.0/24	AS38478	SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong	256
123.103.241.0/24	AS38478	SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong	256
123.103.242.0/24	AS38478	SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong	256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
123.103.41.58	hbhl.net	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
123.103.40.4	AS23724 IDC, China Telecommunications Corporation	`2.95ms` from Beijing, CN
123.103.41.19	AS23724 IDC, China Telecommunications Corporation	`3.17ms` from Beijing, CN
123.103.42.125	AS23724 IDC, China Telecommunications Corporation	`2.64ms` from Beijing, CN

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
139.91.161.21	AS8522 Foundation of Research and Technology Hellas	`7.90ms` from Athens, GR
78.131.38.245	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`1.24ms` from Budapest, HU
173.240.4.5	AS19693 Centrilogic, Inc.	`0.46ms` from Buffalo, US
41.74.127.5	AS327771 Milan Cable	`10.52ms` from Dar es Salaam, TZ
185.26.231.5	AS34922 CSC Administrative Services Limited	`0.71ms` from London, GB
93.95.160.69	AS35539 Information and Communication Technologies LLC	`1.76ms` from Moscow, RU
93.199.137.213	AS3320 Deutsche Telekom AG	`4.01ms` from Nuernberg, DE
47.25.236.69	AS20115 Charter Communications LLC	`10.49ms` from Seattle, US
60.155.144.133	AS17676 SoftBank Corp.	`5.62ms` from Tokyo, JP
72.136.139.5	AS812 Rogers Communications Canada Inc.	`15.61ms` from Toronto, CA
78.152.14.133	AS43118 East & West Sp. z o.o.	`7.72ms` from Warsaw, PL
171.11.207.213	AS4134 CHINANET-BACKBONE	`9.21ms` from Zhengzhou, CN
71.225.195.181	AS7922 Comcast Cable Communications, LLC	`7.93ms` from Ashburn, US
101.5.201.85	AS4538 China Education and Research Network Center	`4.60ms` from Beijing, CN
190.230.170.197	AS7303 Telecom Argentina S.A.	`1.73ms` from Buenos Aires, AR
112.195.196.149	AS4837 CHINA UNICOM China169 Backbone	`4.84ms` from Chengdu, CN
34.57.145.21	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
18.192.215.197	AS16509 Amazon.com, Inc.	`0.15ms` from Frankfurt am Main, DE
185.64.112.101	AS200062 Optitrust GmbH	`3.10ms` from Frankfurt am Main, DE
105.246.228.133	AS36994 Vodacom	`1.63ms` from Johannesburg, ZA
188.239.71.149	AS29013 Telecommunication company "Link Telecom" LTD	`5.69ms` from Kyiv, UA
105.172.149.21	AS37119 UNITEL SA	`1.32ms` from Luanda, AO
213.85.40.229	AS8615 "Central Telegraph" Public Joint-stock Company	`1.69ms` from Moscow, RU
69.248.223.117	AS7922 Comcast Cable Communications, LLC	`9.47ms` from New York City, US
121.251.255.85	AS4538 China Education and Research Network Center	`1.39ms` from Qingdao, CN

Traceroute

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

traceroute -a -n -q1 -f3 123.103.41.57

traceroute to 123.103.41.57 (123.103.41.57): 64 hops max, 52 byte packets

3 [AS38623] 36.37.253.110 0.268 ms

4 *

5 [AS38623] 36.37.255.208 0.308 ms

6 [AS38623] 36.37.254.208 0.625 ms

7 *

8 *

9 *

10 [AS6939] 216.218.207.31 505.27 ms

11 *

12 *

13 *

14 *

15 [AS4808] 61.149.190.222 326.537 ms

16 *

17 *

18 *

19 [AS23724] 123.103.52.130 334.505 ms

20 [AS23724] 123.103.41.57 327.236 ms

Measurement taken from

IPinfo ProbeNet in Phnom Penh, KH

On December 6th 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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