210.21.214.0/24

AS17623 · China Unicom Shenzen network

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Summary

Country	China
Domain	china-netcom.com
ASN	AS17623
Parent Range	210.21.192.0/18
Registry	APNIC
ID	SHENZHEN-CNC

WHOIS Details

inetnum:        210.21.192.0 - 210.21.255.255
netname:        SHENZHEN-CNC
country:        CN
descr:          shenzhen branch, china netcom corp
admin-c:        YS224-AP
tech-c:         YS224-AP
status:         ALLOCATED NON-PORTABLE
changed:        guoyb@china-netcom.com 20031222
mnt-by:         MAINT-CN-ZM28
mnt-lower:      MAINT-CN-SY28
source:         APNIC

person:         yumei sun
nic-hdl:        YS224-AP
e-mail:         sz-ipaddress@china-netcom.com
address:        china netcom
address:        shenzhen
phone:          +86-0755-6983588
country:        CN
changed:        moujh@china-netcom.com 20030827
mnt-by:         MAINT-CN-ZM28
source:         APNIC

route:          210.21.0.0/16
descr:          CNC Group CncNet
country:        CN
origin:         AS9929
mnt-by:         MAINT-CNCGROUP-RR
changed:        abuse@cnc-noc.net 20060330
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.21.214.0/24

Range	ASN	Company	Num of IPs
210.21.192.0/18	AS17623	shenzhen branch, china netcom corp	16,384

Nearby Ranges

BGP prefixes that overlap with 210.21.0.0/16

Range	ASN	Company	Num of IPs
210.21.0.0/17	AS17622	China Unicom Guangdong province network	32,768
210.21.192.0/18	AS17623	shenzhen branch, china netcom corp	16,384
210.21.17.0/24	AS17622	guangzhou city	256
210.21.51.0/24	AS17622	guangzhou city	256
210.21.237.0/24	AS17623	Zhaoshangtianyu	256
210.21.50.0/24	AS17622	guangzhou city	256
210.21.121.0/24	AS17622	guangzhou city	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
210.21.214.66	ccpg365.com.cn	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

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

IP Address	ASN	Details
210.21.214.161	AS17623 China Unicom Shenzen network	`4.61ms` from Guangzhou, 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
81.204.166.88	AS1136 KPN B.V.	`3.03ms` from Amsterdam, NL
52.204.124.104	AS14618 Amazon.com, Inc.	`0.47ms` from Ashburn, US
50.57.234.168	AS19994 Rackspace Hosting	`0.51ms` from Chicago, US
173.21.241.104	AS30036 Mediacom Communications Corp	`6.40ms` from Chicago, US
106.202.168.248	AS24560 Bharti Airtel Ltd., Telemedia Services	`9.17ms` from Delhi, IN
91.53.63.232	AS3320 Deutsche Telekom AG	`4.12ms` from Frankfurt am Main, DE
35.242.172.120	AS396982 Google LLC	`0.11ms` from London, GB
37.132.112.8	AS12479 Orange Espagne SA	`2.67ms` from Madrid, ES
77.153.171.8	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`17.51ms` from Milan, IT
72.31.215.216	AS33363 Charter Communications, Inc	`2.38ms` from Orlando, US
189.120.227.168	AS28573 Claro NXT Telecomunicacoes Ltda	`4.26ms` from Osasco, BR
211.206.52.120	AS9318 SK Broadband Co Ltd	`3.50ms` from Seoul, KR
86.83.220.40	AS1136 KPN B.V.	`2.66ms` from Amsterdam, NL
185.99.130.120	AS207257 MultiSafepay B.V.	`0.49ms` from Amsterdam, NL
44.205.93.232	AS14618 Amazon.com, Inc.	`0.48ms` from Ashburn, US
178.61.133.232	AS21050 Fast Communication Company Ltd	`11.22ms` from Az Za`ayin, QA
47.94.222.56	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.93ms` from Beijing, CN
94.132.145.248	AS2860 NOS COMUNICACOES, S.A.	`7.36ms` from Braga, PT
72.180.40.152	AS11427 Charter Communications Inc	`4.96ms` from Dallas, US
80.133.167.104	AS3320 Deutsche Telekom AG	`2.15ms` from Duesseldorf, DE
170.72.238.184	AS16509 Amazon.com, Inc.	`0.58ms` from Frankfurt am Main, DE
121.152.163.88	AS4766 Korea Telecom	`2.98ms` from Incheon, KR
52.172.152.88	AS8075 Microsoft Corporation	`0.15ms` from Lohogaon, IN
80.203.20.216	AS29695 Lyse Tele AS	`10.25ms` from Oslo, NO
41.140.21.152	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`1.92ms` from Rabat, MA

Traceroute

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

traceroute -a -n -q1 -f5 210.21.214.13

traceroute to 210.21.214.13 (210.21.214.13): 64 hops max, 52 byte packets

5 [AS749] 11.94.153.137 1.037 ms

6 *

7 *

8 *

9 *

10 [AS17623] 210.21.214.13 5.823 ms

Measurement taken from

IPinfo ProbeNet in Guangzhou, CN

On March 13th 2026

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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