210.21.0.0/17

AS17622  ·  China Unicom Guangzhou network

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Summary

Country China
Domain chinaunicom.cn
ASN AS17622
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:          210.21.32.0/19
origin:         AS17622
descr:          China Unicom B811&A1218, China Unicom No.21, Jin-Rong Street
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2023-06-08T06:10:14Z
source:         APNIC

Overlapping Ranges

BGP prefixes that are contained by 210.21.0.0/17

Range ASN Company Num of IPs
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

Nearby Ranges

BGP prefixes that overlap with 210.21.0.0/16

Range ASN Company Num of IPs
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 100 domain names hosted across 74 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
210.21.117.249 gaofashensu.com 6
210.21.4.71 zjjl.cn 3
210.21.9.254 hiooy.com 3
210.21.4.61 gzdikong.com 2
210.21.13.168 oppein.net.cn 2
210.21.81.160 easy-auction.com.cn 2
210.21.44.104 gzgykq.cn 1
210.21.98.49 tianshunwei.space 1
210.21.81.161 dfn-auto.com 1
210.21.81.116 evergreen-intl.com.cn 1
210.21.94.16 revenco.com 1
210.21.81.125 evergreen-intl.net 1
210.21.113.143 minohk.com 1
210.21.81.149 dfl.com.cn 1
210.21.112.154 bundmessen.com 1
210.21.53.87 hd5agile.top 1
210.21.3.66 202419.xyz 1
210.21.108.6 ineyevision.cn 1
210.21.122.109 gf-funds.com 1
210.21.101.187 wisplat.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

Pingable IPs

3,666 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
210.21.56.1 AS17622 China Unicom Guangzhou network 1.57ms from Guangzhou, CN
210.21.98.93 AS17622 China Unicom Guangzhou network 2.70ms from Guangzhou, CN
210.21.100.1 AS17622 China Unicom Guangzhou network 3.46ms from Guangzhou, CN
210.21.97.36 AS17622 China Unicom Guangzhou network 3.04ms from Guangzhou, CN
210.21.49.193 AS17622 China Unicom Guangzhou network 1.81ms from Guangzhou, CN
210.21.90.162 AS17622 China Unicom Guangzhou network 2.34ms from Guangzhou, CN
210.21.36.148 AS17622 China Unicom Guangzhou network 1.98ms from Guangzhou, CN
210.21.74.1 AS17622 China Unicom Guangzhou network 3.79ms from Guangzhou, CN
210.21.66.195 AS17622 China Unicom Guangzhou network 2.54ms from Guangzhou, CN
210.21.94.179 AS17622 China Unicom Guangzhou network 2.33ms from Guangzhou, CN
210.21.64.250 AS17622 China Unicom Guangzhou network 3.15ms from Guangzhou, CN
210.21.126.123 AS17622 China Unicom Guangzhou network 2.42ms from Guangzhou, CN
210.21.6.210 AS17622 China Unicom Guangzhou network 2.29ms from Guangzhou, CN
210.21.127.30 AS17622 China Unicom Guangzhou network 1.69ms from Guangzhou, CN
210.21.81.225 AS17622 China Unicom Guangzhou network 2.41ms from Guangzhou, CN
210.21.80.2 AS17622 China Unicom Guangzhou network 2.70ms from Guangzhou, CN
210.21.23.1 AS17622 China Unicom Guangzhou network 2.19ms from Guangzhou, CN
210.21.52.121 AS17622 China Unicom Guangzhou network 2.21ms from Guangzhou, CN
210.21.103.130 AS17622 China Unicom Guangzhou network 3.50ms from Guangzhou, CN
210.21.48.209 AS17622 China Unicom Guangzhou network 1.97ms from Guangzhou, CN
210.21.99.1 AS17622 China Unicom Guangzhou network 3.50ms from Guangzhou, CN
210.21.28.145 AS17622 China Unicom Guangzhou network 1.93ms from Guangzhou, CN
210.21.67.97 AS17622 China Unicom Guangzhou network 3.11ms from Guangzhou, CN
210.21.86.74 AS17622 China Unicom Guangzhou network 2.04ms from Guangzhou, CN
210.21.61.210 AS17622 China Unicom Guangzhou network 1.95ms 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
145.108.185.65 AS1103 SURF B.V. 1.37ms from Amsterdam, NL
80.56.56.1 AS33915 Vodafone Libertel B.V. 6.00ms from Amsterdam, NL
128.143.181.1 AS225 University of Virginia 3.17ms from Ashburn, US
204.87.31.1 AS3930 Federal Energy Regulatory Commission 2.81ms from Ashburn, US
44.15.4.65 AS54869 Rockman Communications, Inc. 18.19ms from Ashburn, US
70.21.1.1 AS701 Verizon Business 2.40ms from Ashburn, US
100.36.81.1 AS701 Verizon Business 2.21ms from Ashburn, US
65.82.111.225 AS6389 AT&T Enterprises, LLC 1.92ms from Atlanta, US
185.168.104.1 AS207026 Quopiam Informatica SL 1.55ms from Barcelona, ES
186.154.222.81 AS19429 ETB - Colombia 0.53ms from Bogota, CO
41.42.90.225 AS8452 TE-AS 4.63ms from Cairo, EG
117.176.129.1 AS9808 China Mobile Communications Group Co., Ltd. 3.47ms from Chengdu, CN
120.60.92.1 AS9829 National Internet Backbone 8.87ms from Chennai, IN
216.21.182.129 AS31920 Geetingsville Telephone Co., Inc. 6.31ms from Chicago, US
190.245.212.1 AS7303 Telecom Argentina S.A. 0.70ms from Cordoba, AR
199.26.123.225 AS394117 Encore Communications, Inc 6.18ms from Dallas, US
69.40.48.1 AS7029 Windstream Communications LLC 4.86ms from Dallas, US
67.207.243.1 AS8025 BrightNet Oklahoma 9.09ms from Dallas, US
59.183.89.17 AS9829 National Internet Backbone 2.37ms from Delhi, IN
103.213.36.1 AS136395 Mahfujul Haque t/a Expert Online 3.13ms from Dhaka, BD
103.122.207.1 AS151057 Torrongo Communications 0.58ms from Dhaka, BD
78.100.98.97 AS8781 Ooredoo Q.S.C. 0.67ms from Doha, QA
176.94.122.1 AS3209 Vodafone GmbH 0.79ms from Hamburg, DE
47.91.190.65 AS45102 Alibaba (US) Technology Co., Ltd. 0.67ms from Hong Kong, HK
210.3.76.209 AS9304 HGC Global Communications Limited 1.71ms from Hong Kong, HK

Traceroute

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

$
traceroute -a -n -q1 -f2 210.21.74.1
traceroute to 210.21.74.1 (210.21.74.1): 64 hops max, 52 byte packets
2 [AS749] 11.73.1.93 0.878 ms
3 [AS749] 11.110.75.185 0.463 ms
4 *
5 [AS749] 11.94.155.69 1.077 ms
6 *
8 *
9 [AS17816] 112.96.0.146 2.597 ms
10 [AS17622] 210.21.74.1 3.813 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.

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