221.12.0.0/17

AS4837  ·  CHINA UNICOM China169 Backbone

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Summary

Country China
Domain chinaunicom.cn
ASN AS4837
Registry APNIC
ID UNICOM-ZJ

WHOIS Details

inetnum:        221.12.0.0 - 221.12.191.255
netname:        UNICOM-ZJ
descr:          China Unicom Zhejiang province network
descr:          China Unicom
country:        CN
admin-c:        CH1302-AP
tech-c:         JQ16-AP
abuse-c:        AC1718-AP
status:         ALLOCATED PORTABLE
remarks:        service provider
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNCGROUP-ZJ
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2025-01-22T13:08:06Z
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:  2025-10-17T02:26:26Z
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:         Jianhuaq Qian
nic-hdl:        JQ16-AP
e-mail:         zj_ipmaster@126.com
address:        No 1336,BinAn Road,Hangzhou, Zhejiang,China
phone:          +86-571-28868063
fax-no:         +86-571-28868069
country:        CN
mnt-by:         MAINT-CNCGROUP-ZJ
last-modified:  2013-07-09T07:43:26Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 221.12.0.0/16

Range ASN Company Num of IPs
221.12.192.0/18 AS18144 Enecom,Inc. 16,384

Hosted domains

There are 151 domain names hosted across 101 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
221.12.3.101 jmjhrc.com 20
221.12.5.228 chinesetown.net 6
221.12.40.140 nbnet.com 5
221.12.98.73 zxmoa.com 4
221.12.37.46 runtw.com 3
221.12.42.101 baoyunys.com 3
221.12.3.102 jdzj.com 3
221.12.124.90 nfc12315.cn 2
221.12.67.153 bxn.com 2
221.12.42.233 zjytgj.cn 2
221.12.53.38 dqhef.com 2
221.12.66.67 hewind.com 2
221.12.77.169 langdetech.com 2
221.12.94.54 analyzelog.com 2
221.12.40.172 risingshipping.cn 2
221.12.59.249 zhonghua-paper.com 2
221.12.106.236 tzabhw.com 2
221.12.3.99 dingbiao.com 2
221.12.5.66 hkyq.top 2
221.12.53.36 huawai.net 2

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

7,022 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
221.12.104.153 AS4837 CHINA UNICOM China169 Backbone 8.07ms from Hangzhou, CN
221.12.42.1 AS4837 CHINA UNICOM China169 Backbone 5.76ms from Hangzhou, CN
221.12.18.97 AS4837 CHINA UNICOM China169 Backbone 4.09ms from Hangzhou, CN
221.12.118.169 AS4837 CHINA UNICOM China169 Backbone 5.98ms from Hangzhou, CN
221.12.48.217 AS4837 CHINA UNICOM China169 Backbone 6.02ms from Hangzhou, CN
221.12.77.193 AS4837 CHINA UNICOM China169 Backbone 7.79ms from Hangzhou, CN
221.12.59.209 AS4837 CHINA UNICOM China169 Backbone 5.83ms from Hangzhou, CN
221.12.75.1 AS4837 CHINA UNICOM China169 Backbone 7.52ms from Hangzhou, CN
221.12.30.161 AS4837 CHINA UNICOM China169 Backbone 4.05ms from Hangzhou, CN
221.12.51.82 AS4837 CHINA UNICOM China169 Backbone 5.78ms from Hangzhou, CN
221.12.27.65 AS4837 CHINA UNICOM China169 Backbone 3.43ms from Hangzhou, CN
221.12.116.31 AS4837 CHINA UNICOM China169 Backbone 7.39ms from Hangzhou, CN
221.12.1.107 AS4837 CHINA UNICOM China169 Backbone 3.27ms from Hangzhou, CN
221.12.35.101 AS4837 CHINA UNICOM China169 Backbone 3.29ms from Hangzhou, CN
221.12.106.71 AS4837 CHINA UNICOM China169 Backbone 7.92ms from Hangzhou, CN
221.12.64.193 AS4837 CHINA UNICOM China169 Backbone 7.63ms from Hangzhou, CN
221.12.37.194 AS4837 CHINA UNICOM China169 Backbone 5.63ms from Hangzhou, CN
221.12.28.31 AS4837 CHINA UNICOM China169 Backbone 4.04ms from Hangzhou, CN
221.12.10.17 AS4837 CHINA UNICOM China169 Backbone 3.33ms from Hangzhou, CN
221.12.67.161 AS4837 CHINA UNICOM China169 Backbone 8.01ms from Hangzhou, CN
221.12.41.28 AS4837 CHINA UNICOM China169 Backbone 6.24ms from Hangzhou, CN
221.12.79.9 AS4837 CHINA UNICOM China169 Backbone 7.66ms from Hangzhou, CN
221.12.102.73 AS4837 CHINA UNICOM China169 Backbone 5.25ms from Shanghai, CN
221.12.114.237 AS4837 CHINA UNICOM China169 Backbone 5.83ms from Hangzhou, CN
221.12.52.17 AS4837 CHINA UNICOM China169 Backbone 5.69ms from Hangzhou, 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
37.150.132.1 AS9198 JSC Kazakhtelecom 13.07ms from Almaty, KZ
96.4.102.193 AS11686 Zayo Bandwidth 14.52ms from Atlanta, US
12.195.137.1 AS7018 AT&T Enterprises, LLC 6.43ms from Atlanta, US
120.15.204.1 AS4837 CHINA UNICOM China169 Backbone 11.05ms from Beijing, CN
185.182.112.1 AS206550 CTC SAL 3.89ms from Beirut, LB
178.148.185.49 AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o. 7.59ms from Belgrade, RS
172.203.102.113 AS8075 Microsoft Corporation 1.02ms from Boydton, US
190.52.87.1 AS262231 COOP. ELÉCTRICA Y DE SERVICIOS MARIANO MORENO LTDA. 6.63ms from Buenos Aires, AR
190.247.167.1 AS7303 Telecom Argentina S.A. 0.81ms from Buenos Aires, AR
105.76.128.1 AS36884 Wana Corporate 13.15ms from Casablanca, MA
118.251.117.209 AS4134 CHINANET-BACKBONE 5.39ms from Changsha, CN
175.153.200.177 AS4837 CHINA UNICOM China169 Backbone 4.75ms from Chengdu, CN
117.172.57.129 AS9808 China Mobile Communications Group Co., Ltd. 4.04ms from Chengdu, CN
216.146.94.209 AS16399 First Communications LLC 4.96ms from Chicago, US
173.29.87.1 AS30036 Mediacom Communications Corp 6.60ms from Chicago, US
69.175.17.129 AS32475 Internap Holding LLC 1.12ms from Chicago, US
50.44.182.209 AS5650 Frontier Communications of America, Inc. 7.61ms from Chicago, US
104.183.225.33 AS7018 AT&T Enterprises, LLC 7.45ms from Chicago, US
13.59.159.49 AS16509 Amazon.com, Inc. 0.16ms from Columbus, US
160.2.217.1 AS11492 CABLE ONE, INC. 10.56ms from Dallas, US
103.219.217.1 AS59162 U.P. COMMUNICATION SERVICES PVT LTD 0.46ms from Delhi, IN
68.46.140.1 AS7922 Comcast Cable Communications, LLC 1.90ms from Detroit, US
37.60.7.241 AS198570 Stadtnetz Bamberg Gesellschaft fuer Telekommunikation mbH 2.78ms from Frankfurt am Main, DE
194.15.188.113 AS702 Verizon Business 0.82ms from Frankfurt am Main, DE
4.182.96.193 AS8075 Microsoft Corporation 0.19ms from Frankfurt am Main, DE

Traceroute

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

$
traceroute -a -n -q1 -f2 221.12.48.129
traceroute to 221.12.48.129 (221.12.48.129): 64 hops max, 52 byte packets
2 [AS20278] 64.44.81.177 0.142 ms
3 *
4 *
5 *
6 *
7 [AS4837] 219.158.6.5 168.004 ms
8 [AS4837] 219.158.113.118 151.778 ms
9 *
10 *
11 [AS4837] 221.12.177.10 163.03 ms
12 *
13 [AS4837] 221.12.48.129 162.915 ms
Measurement taken from IPinfo ProbeNet in Denver, US
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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