203.187.188.0/22

AS23724 · IDC, China Telecommunications Corporation

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Summary

Country	China
Domain	sinnet.com.cn
ASN	AS23724
Registry	APNIC
ID	ZGCKJ

WHOIS Details

inetnum:        203.187.190.0 - 203.187.190.255
netname:        zgckj
country:        CN
descr:          Zhongguancun science and technology Ltd.
descr:          National Internet Registry
descr:          Haidian Distric, Beijing
admin-c:        CH471-AP
tech-c:         WH271-AP
status:         ASSIGNED NON-PORTABLE
changed:        [email protected] 20041216
mnt-by:         MANT-CN-SINNET
source:         APNIC

person:         Chen hao
nic-hdl:        CH471-AP
e-mail:         [email protected]
address:        Langfang university Langfang Development Area
phone:          +86-13311166160
country:        CN
changed:        [email protected] 20080227
mnt-by:         MAINT-CNNIC-AP
source:         APNIC

person:         Wang Huijun
nic-hdl:        WH271-AP
e-mail:         [email protected]
address:        Langfang university Langfang Development Area
phone:          +86-13311166160
fax-no:         +86-64181819
country:        CN
changed:        [email protected] 20080227
mnt-by:         MAINT-CNNIC-AP
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.187.0.0/16

Range	ASN	Company	Num of IPs
203.187.128.0/19	AS3300	BT-Infonet, Internet Service Provider	8,192
203.187.192.0/24	AS18207	YOU Broadband & Cable India Ltd.	256
203.187.193.0/24	AS18207	YOU Broadband & Cable India Ltd.	256
203.187.145.0/24	AS3300	BT GIA SNG	256
203.187.146.0/24	AS3300	BT GIA SNG	256

Hosted domains

There are 9 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.187.188.134	bjcrchem.net.cn	9

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

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

IP Address	ASN	Details
203.187.189.154	AS23724 IDC, China Telecommunications Corporation	`4.36ms` 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
62.58.116.54	AS13127 Odido Netherlands B.V.	`3.45ms` from Amsterdam, NL
36.76.147.86	AS7713 PT Telekomunikasi Indonesia	`11.73ms` from Batam, ID
120.61.57.22	AS9829 National Internet Backbone	`11.91ms` from Bengaluru, IN
20.81.177.182	AS8075 Microsoft Corporation	`0.34ms` from Boydton, US
84.2.199.70	AS5483 Magyar Telekom Plc.	`5.09ms` from Budapest, HU
171.213.215.86	AS4134 CHINANET-BACKBONE	`3.65ms` from Chengdu, CN
64.127.130.54	AS19151 BroadbandONE, LLC	`0.31ms` from Chicago, US
104.250.14.182	AS21351 Canal + Telecom SAS	`4.42ms` from Le Lamentin, MQ
86.167.207.150	AS2856 British Telecommunications PLC	`3.70ms` from London, GB
94.124.169.198	AS47737 Konsist-OS, joint-stock company	`1.20ms` from Moscow, RU
153.3.185.214	AS4837 CHINA UNICOM China169 Backbone	`5.69ms` from Nanjing, CN
122.247.80.6	AS4134 CHINANET-BACKBONE	`4.05ms` from Ningbo, CN
222.103.101.214	AS4766 Korea Telecom	`4.97ms` from Seoul, KR
119.23.164.214	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.41ms` from Shenzhen, CN
126.79.201.214	AS17676 SoftBank Corp.	`3.11ms` from Tokyo, JP
2.190.242.6	AS58224 Iran Telecommunication Company PJS	`17.63ms` from Yerevan, AM
67.163.243.182	AS7922 Comcast Cable Communications, LLC	`12.38ms` from Ashburn, US
147.30.239.214	AS9198 JSC Kazakhtelecom	`7.02ms` from Astana, KZ
98.192.31.214	AS7922 Comcast Cable Communications, LLC	`4.14ms` from Atlanta, US
110.170.130.70	AS7470 TRUE INTERNET Co.,Ltd.	`7.04ms` from Bangkok, TH
123.120.181.6	AS4808 China Unicom Beijing Province Network	`3.46ms` from Beijing, CN
41.35.189.230	AS8452 TE-AS	`10.34ms` from Cairo, EG
47.188.32.118	AS5650 Frontier Communications of America, Inc.	`2.37ms` from Dallas, US
174.71.37.118	AS22773 Cox Communications Inc.	`8.20ms` from Kansas City, US
104.174.173.214	AS20001 Charter Communications Inc	`5.23ms` from Los Angeles, 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 -m15 203.187.190.100

traceroute to 203.187.190.100 (203.187.190.100): 15 hops max, 52 byte packets

3 [] 91.200.241.131 18.52 ms

4 [AS4809] 145.14.73.5 15.866 ms

5 [AS23764] 5.154.154.81 15.362 ms

6 *

7 *

8 [] 59.43.19.97 168.813 ms

9 *

10 *

11 *

12 [AS23724] 220.181.124.46 171.255 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in London, GB

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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