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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CH1302-AP
tech-c:         CH1302-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
admin-c:        CH1302-AP
tech-c:         CH1302-AP
nic-hdl:        AC1718-AP
remarks:        Generated from irt object IRT-CU-CN
remarks:        [email protected] was validated on 2025-10-17
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-17T02:26:56Z
source:         APNIC

person:         ChinaUnicom Hostmaster
nic-hdl:        CH1302-AP
e-mail:         [email protected]
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:         [email protected]
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
210.21.50.0/24 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
210.21.17.0/24 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 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
210.21.61.193 AS17622 China Unicom Guangzhou network 1.96ms from Guangzhou, CN
210.21.46.155 AS17622 China Unicom Guangzhou network 1.83ms from Guangzhou, CN
210.21.25.98 AS17622 China Unicom Guangzhou network 2.71ms from Guangzhou, CN
210.21.37.201 AS17622 China Unicom Guangzhou network 1.98ms from Guangzhou, CN
210.21.28.145 AS17622 China Unicom Guangzhou network 1.93ms from Guangzhou, CN
210.21.40.161 AS17622 China Unicom Guangzhou network 1.53ms from Guangzhou, CN
210.21.10.210 AS17622 China Unicom Guangzhou network 2.02ms from Guangzhou, CN
210.21.43.17 AS17622 China Unicom Guangzhou network 2.16ms from Guangzhou, CN
210.21.4.97 AS17622 China Unicom Guangzhou network 2.30ms from Guangzhou, CN
210.21.41.35 AS17622 China Unicom Guangzhou network 1.93ms from Guangzhou, CN
210.21.21.1 AS17622 China Unicom Guangzhou network 2.71ms from Guangzhou, CN
210.21.51.229 AS17622 China Unicom Guangzhou network 2.38ms from Guangzhou, CN
210.21.13.225 AS17622 China Unicom Guangzhou network 1.93ms from Guangzhou, CN
210.21.63.241 AS17622 China Unicom Guangzhou network 1.94ms from Guangzhou, CN
210.21.44.169 AS17622 China Unicom Guangzhou network 1.75ms from Guangzhou, CN
210.21.35.10 AS17622 China Unicom Guangzhou network 1.58ms from Guangzhou, CN
210.21.60.75 AS17622 China Unicom Guangzhou network 2.24ms from Guangzhou, CN
210.21.36.227 AS17622 China Unicom Guangzhou network 2.04ms from Guangzhou, CN
210.21.47.41 AS17622 China Unicom Guangzhou network 1.73ms from Guangzhou, CN
210.21.14.17 AS17622 China Unicom Guangzhou network 2.34ms from Guangzhou, CN
210.21.54.1 AS17622 China Unicom Guangzhou network 3.10ms from Guangzhou, CN
210.21.48.209 AS17622 China Unicom Guangzhou network 1.97ms from Guangzhou, CN
210.21.16.1 AS17622 China Unicom Guangzhou network 3.23ms from Guangzhou, CN
210.21.9.57 AS17622 China Unicom Guangzhou network 1.56ms from Guangzhou, CN
210.21.52.121 AS17622 China Unicom Guangzhou network 2.32ms 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
44.238.181.226 AS16509 Amazon.com, Inc. 0.13ms from Boardman, US
41.45.26.2 AS8452 TE-AS 4.62ms from Cairo, EG
64.183.221.146 AS11427 Charter Communications Inc 1.59ms from Dallas, US
50.216.215.18 AS7922 Comcast Cable Communications, LLC 1.12ms from Denver, US
82.96.72.34 AS29686 Jonas Frey trading as Probe Networks 0.50ms from Frankfurt am Main, DE
154.196.20.194 AS62240 Clouvider 0.26ms from Frankfurt am Main, DE
170.199.208.2 AS6939 Hurricane Electric LLC 0.29ms from Fremont, US
90.193.170.226 AS5607 Sky UK Limited 7.41ms from London, GB
201.139.202.2 AS28503 GSAT COMUNICACIONES SA DE CV 3.99ms from Los Angeles, US
34.102.45.98 AS396982 Google LLC 0.11ms from Los Angeles, US
201.143.76.114 AS8151 UNINET 5.70ms from Los Angeles, US
47.201.116.50 AS5650 Frontier Communications of America, Inc. 6.24ms from Miami, US
76.180.143.130 AS11351 Charter Communications Inc 19.11ms from New York City, US
126.22.119.162 AS17676 SoftBank Corp. 3.93ms from Osaka, JP
200.232.55.2 AS10429 TELEFÔNICA BRASIL S.A 1.89ms from Osasco, BR
73.92.138.226 AS7922 Comcast Cable Communications, LLC 5.51ms from San Jose, US
131.191.35.2 AS14677 City of Tacoma 1.00ms from Seattle, US
104.168.82.130 AS36352 HostPapa 0.20ms from Seattle, US
218.149.248.194 AS4766 Korea Telecom 7.08ms from Seoul, KR
180.71.155.18 AS9318 SK Broadband Co Ltd 5.99ms from Seoul, KR
71.14.85.34 AS20115 Charter Communications LLC 5.27ms from St. Louis, US
69.156.78.146 AS577 Bell Canada 2.11ms from Toronto, CA
83.247.177.2 AS39551 Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya 4.93ms from Zaragoza, ES
23.251.63.2 AS151373 JAPAN 3D PRINTER 0.35ms from Amsterdam, NL
121.19.130.34 AS4837 CHINA UNICOM China169 Backbone 9.57ms from Beijing, CN

Traceroute

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

$
traceroute -a -n -q1 -f5 210.21.11.227
traceroute to 210.21.11.227 (210.21.11.227): 64 hops max, 52 byte packets
5 [AS749] 11.94.155.105 0.922 ms
6 *
7 *
8 *
9 *
10 [AS17622] 210.21.11.227 1.764 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