210.21.0.0/18

AS17622  ·  China Unicom Guangzhou network

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

Summary

Country China
Domain chinaunicom.cn
ASN AS17622
Parent Range 210.21.0.0/17
Registry APNIC
ID UNICOM-GD

WHOIS Details

inetnum:        210.21.0.0 - 210.21.127.255
netname:        UNICOM-GD
descr:          China Unicom Guangdong province network
descr:          China Unicom
country:        CN
admin-c:        CH1302-AP
tech-c:         RP181-AP
abuse-c:        AC1718-AP
status:         ALLOCATED NON-PORTABLE
remarks:        service provider
mnt-by:         MAINT-CNCGROUP
mnt-lower:      MAINT-CNCGROUP-GD
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2023-10-21T03:37:28Z
source:         APNIC

irt:            IRT-CU-CN
address:        No.21,Financial Street
address:        Beijing,100033
address:        P.R.China
e-mail:         zhaoyz3@chinaunicom.cn
abuse-mailbox:  zhaoyz3@chinaunicom.cn
admin-c:        CH1302-AP
tech-c:         CH1302-AP
auth:           # Filtered
remarks:        zhaoyz3@chinaunicom.cn was validated on 2025-10-17
mnt-by:         MAINT-CNCGROUP
last-modified:  2025-11-18T00:26:20Z
source:         APNIC

role:           ABUSE CUCN
country:        ZZ
address:        No.21,Financial Street
address:        Beijing,100033
address:        P.R.China
phone:          +000000000
e-mail:         zhaoyz3@chinaunicom.cn
admin-c:        CH1302-AP
tech-c:         CH1302-AP
nic-hdl:        AC1718-AP
remarks:        Generated from irt object IRT-CU-CN
remarks:        zhaoyz3@chinaunicom.cn was validated on 2025-10-17
abuse-mailbox:  zhaoyz3@chinaunicom.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-17T02:26:56Z
source:         APNIC

person:         ChinaUnicom Hostmaster
nic-hdl:        CH1302-AP
e-mail:         hqs-ipabuse@chinaunicom.cn
address:        No.21,Jin-Rong Street
address:        Beijing,100033
address:        P.R.China
phone:          +86-10-66259764
fax-no:         +86-10-66259764
country:        CN
mnt-by:         MAINT-CNCGROUP
last-modified:  2017-08-17T06:13:16Z
source:         APNIC

person:         runkeng pan
nic-hdl:        RP181-AP
e-mail:         gdipnoc@chinaunicom.cn
address:        XinShiKong Plaza,No 666 Huangpu Rd. Guangzhou 510627,China
phone:          +86-20-22214174
fax-no:         +86-20-22212266-4174
country:        CN
mnt-by:         MAINT-CNCGROUP-GD
last-modified:  2015-12-16T03:32:02Z
source:         APNIC

route:          210.21.64.0/18
origin:         AS17622
descr:          China Unicom B811&A1218, China Unicom No.21, Jin-Rong Street
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2023-06-08T06:10:15Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.21.0.0/18

Range ASN Company Num of IPs
210.21.0.0/17 AS17622 China Unicom Guangdong province network 32,768

BGP prefixes that are contained by 210.21.0.0/18

Range ASN Company Num of IPs
210.21.17.0/24 AS17622 guangzhou city 256
210.21.51.0/24 AS17622 guangzhou city 256

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
210.21.121.0/24 AS17622 guangzhou city 256
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

Hosted domains

There are 46 domain names hosted across 37 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
210.21.53.130 digiark.cn 2
210.21.13.168 oppeinsoft.com 2
210.21.4.61 gzla.com.cn 2
210.21.44.104 gzgykq.cn 1
210.21.25.134 30pay.net 1
210.21.50.165 chwi.cn 1
210.21.37.204 kmcm.com.cn 1
210.21.14.198 grtnews.tv 1
210.21.33.68 gdsfjy.cn 1
210.21.34.212 cat.fit 1
210.21.48.70 baowang.club 1
210.21.48.230 nalls.cn 1
210.21.3.66 202419.xyz 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

Pingable IPs

2,113 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
210.21.16.1 AS17622 China Unicom Guangzhou network 3.23ms from Guangzhou, CN
210.21.43.17 AS17622 China Unicom Guangzhou network 2.16ms from Guangzhou, CN
210.21.37.201 AS17622 China Unicom Guangzhou network 1.98ms from Guangzhou, CN
210.21.61.193 AS17622 China Unicom Guangzhou network 1.96ms from Guangzhou, CN
210.21.34.138 AS17622 China Unicom Guangzhou network 2.01ms from Guangzhou, CN
210.21.7.2 AS17622 China Unicom Guangzhou network 2.35ms from Guangzhou, CN
210.21.8.11 AS17622 China Unicom Guangzhou network 2.23ms from Guangzhou, CN
210.21.11.227 AS17622 China Unicom Guangzhou network 1.76ms from Guangzhou, CN
210.21.4.97 AS17622 China Unicom Guangzhou network 2.30ms from Guangzhou, CN
210.21.35.10 AS17622 China Unicom Guangzhou network 1.58ms from Guangzhou, CN
210.21.44.169 AS17622 China Unicom Guangzhou network 1.75ms from Guangzhou, CN
210.21.14.17 AS17622 China Unicom Guangzhou network 2.34ms from Guangzhou, CN
210.21.10.210 AS17622 China Unicom Guangzhou network 2.02ms from Guangzhou, CN
210.21.39.201 AS17622 China Unicom Guangzhou network 2.04ms from Guangzhou, CN
210.21.24.38 AS17622 China Unicom Guangzhou network 2.67ms from Guangzhou, CN
210.21.54.1 AS17622 China Unicom Guangzhou network 3.10ms from Guangzhou, CN
210.21.40.161 AS17622 China Unicom Guangzhou network 1.53ms from Guangzhou, CN
210.21.51.229 AS17622 China Unicom Guangzhou network 2.38ms from Guangzhou, CN
210.21.30.1 AS17622 China Unicom Guangzhou network 2.35ms from Guangzhou, CN
210.21.27.242 AS17622 China Unicom Guangzhou network 1.97ms from Guangzhou, CN
210.21.23.1 AS17622 China Unicom Guangzhou network 2.18ms from Guangzhou, CN
210.21.21.1 AS17622 China Unicom Guangzhou network 2.71ms from Guangzhou, CN
210.21.5.209 AS17622 China Unicom Guangzhou network 2.48ms from Guangzhou, CN
210.21.28.145 AS17622 China Unicom Guangzhou network 1.93ms from Guangzhou, CN
210.21.62.90 AS17622 China Unicom Guangzhou network 2.12ms 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
203.7.70.114 AS7545 TPG Telecom Limited 13.67ms from Adelaide, AU
104.171.252.2 AS26827 EPB Fiber Optics 3.43ms from Atlanta, US
72.106.98.178 AS6167 Verizon Business 10.93ms from Atlanta, US
37.80.124.18 AS3320 Deutsche Telekom AG 17.32ms from Berlin, DE
155.95.106.98 AS1236 General Dynamics Information Technology, Inc. 0.56ms from Dallas, US
104.223.65.2 AS36352 HostPapa 0.49ms from Dallas, US
98.17.1.98 AS7029 Windstream Communications LLC 9.47ms from Dallas, US
38.109.250.2 AS174 Cogent Communications, LLC 6.02ms from Denver, US
87.181.202.114 AS3320 Deutsche Telekom AG 5.32ms from Frankfurt am Main, DE
93.209.52.210 AS3320 Deutsche Telekom AG 5.36ms from Frankfurt am Main, DE
112.5.217.210 AS9808 China Mobile Communications Group Co., Ltd. 5.57ms from Fuzhou, CN
8.136.199.66 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.60ms from Hangzhou, CN
156.254.77.82 AS139880 OWGELS INTERNATIONAL CO., LIMITED 0.42ms from Hong Kong, HK
175.149.15.130 AS4837 CHINA UNICOM China169 Backbone 13.01ms from Liaoyang, CN
69.50.105.50 AS11696 Fusion, LLC 6.37ms from Los Angeles, US
94.34.254.82 AS8612 Tiscali Italia S.P.A. 7.34ms from Milan, IT
74.92.71.162 AS7922 Comcast Cable Communications, LLC 6.60ms from New York City, US
73.108.105.98 AS7922 Comcast Cable Communications, LLC 10.50ms from Orlando, US
71.102.96.50 AS701 Verizon Business 13.09ms from Philadelphia, US
193.32.202.82 AS60731 Prostie tehnologii Ltd. 0.62ms from Saint Petersburg, RU
69.168.92.130 AS5048 FIBERNET Corp. 2.14ms from Salt Lake City, US
43.135.132.194 AS132203 Tencent Building, Kejizhongyi Avenue 0.27ms from San Jose, US
112.184.175.18 AS4766 Korea Telecom 4.17ms from Seoul, KR
71.14.85.34 AS20115 Charter Communications LLC 5.27ms from St. Louis, US
102.154.129.34 AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom) 19.99ms from Tunis, TN

Traceroute

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

$
traceroute -a -n -q1 -f5 210.21.6.210
traceroute to 210.21.6.210 (210.21.6.210): 64 hops max, 52 byte packets
5 [AS749] 11.94.155.85 0.845 ms
6 *
7 *
8 *
9 *
10 [AS17622] 210.21.6.210 2.307 ms
Measurement taken from IPinfo ProbeNet in Guangzhou, CN
On

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs