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:         [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:         Jianhuaq Qian
nic-hdl:        JQ16-AP
e-mail:         [email protected]
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 149 domain names hosted across 102 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 jmeprc.com 20
221.12.5.228 shinyway.org.cn 6
221.12.98.73 ihezhang.com 4
221.12.40.140 atang.net 4
221.12.42.101 baoyunys.com 3
221.12.66.67 hewind.com 2
221.12.40.172 risingshipping.cn 2
221.12.37.46 runtw.com 2
221.12.3.99 dingbiao.com 2
221.12.53.36 huawai.net 2
221.12.59.249 zhonghua-paper.com 2
221.12.94.54 jiakuai.com 2
221.12.5.66 hkyq.top 2
221.12.106.236 gpcra.org 2
221.12.124.90 nfc12315.cn 2
221.12.53.38 dqhef.com 2
221.12.5.227 igo99.cn 2
221.12.77.169 langdetech.com 2
221.12.42.233 zjytgj.cn 2
221.12.3.102 jianzhuwz.com 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

7,047 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
221.12.63.65 AS4837 CHINA UNICOM China169 Backbone 6.46ms from Hangzhou, CN
221.12.55.101 AS4837 CHINA UNICOM China169 Backbone 3.02ms from Ningbo, CN
221.12.106.49 AS4837 CHINA UNICOM China169 Backbone 8.68ms from Ningbo, CN
221.12.51.243 AS4837 CHINA UNICOM China169 Backbone 1.74ms from Ningbo, CN
221.12.15.129 AS4837 CHINA UNICOM China169 Backbone 4.60ms from Hangzhou, CN
221.12.83.13 AS4837 CHINA UNICOM China169 Backbone 8.44ms from Hangzhou, CN
221.12.69.123 AS4837 CHINA UNICOM China169 Backbone 7.91ms from Hangzhou, CN
221.12.5.193 AS4837 CHINA UNICOM China169 Backbone 4.87ms from Hangzhou, CN
221.12.48.125 AS4837 CHINA UNICOM China169 Backbone 4.52ms from Ningbo, CN
221.12.96.157 AS4837 CHINA UNICOM China169 Backbone 4.47ms from Ningbo, CN
221.12.39.59 AS4837 CHINA UNICOM China169 Backbone 2.24ms from Ningbo, CN
221.12.72.65 AS4837 CHINA UNICOM China169 Backbone 9.71ms from Shanghai, CN
221.12.21.209 AS4837 CHINA UNICOM China169 Backbone 3.72ms from Hangzhou, CN
221.12.70.1 AS4837 CHINA UNICOM China169 Backbone 4.71ms from Hangzhou, CN
221.12.53.118 AS4837 CHINA UNICOM China169 Backbone 3.08ms from Ningbo, CN
221.12.95.97 AS4837 CHINA UNICOM China169 Backbone 7.16ms from Shanghai, CN
221.12.65.233 AS4837 CHINA UNICOM China169 Backbone 8.65ms from Hangzhou, CN
221.12.6.199 AS4837 CHINA UNICOM China169 Backbone 3.92ms from Hangzhou, CN
221.12.54.78 AS4837 CHINA UNICOM China169 Backbone 2.01ms from Ningbo, CN
221.12.58.185 AS4837 CHINA UNICOM China169 Backbone 5.95ms from Shanghai, CN
221.12.56.177 AS4837 CHINA UNICOM China169 Backbone 5.95ms from Hangzhou, CN
221.12.101.111 AS4837 CHINA UNICOM China169 Backbone 6.24ms from Ningbo, CN
221.12.1.41 AS4837 CHINA UNICOM China169 Backbone 3.71ms from Hangzhou, CN
221.12.50.81 AS4837 CHINA UNICOM China169 Backbone 6.36ms from Hangzhou, CN
221.12.34.89 AS4837 CHINA UNICOM China169 Backbone 1.25ms from Ningbo, 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
192.87.55.1 AS1103 SURF B.V. 1.39ms from Amsterdam, NL
172.214.98.241 AS8075 Microsoft Corporation 0.96ms from Ashburn, US
152.3.30.65 AS13371 Duke University 10.47ms from Atlanta, US
24.177.188.1 AS20115 Charter Communications LLC 10.81ms from Atlanta, US
62.153.65.145 AS3320 Deutsche Telekom AG 1.37ms from Berlin, DE
216.194.111.129 AS13150 CATO NETWORKS LTD 0.50ms from Bogota, CO
98.110.176.1 AS701 Verizon Business 2.19ms from Boston, US
84.91.44.1 AS13156 NOWO COMMUNICATIONS, S.A. 1.01ms from Braga, PT
118.122.134.1 AS4134 CHINANET-BACKBONE 4.49ms from Chengdu, CN
117.200.233.65 AS9829 National Internet Backbone 12.29ms from Chennai, IN
67.175.152.1 AS7922 Comcast Cable Communications, LLC 0.93ms from Chicago, US
181.29.174.1 AS7303 Telecom Argentina S.A. 0.74ms from Cordoba, AR
167.100.127.1 AS18943 YELCOT TELEPHONE COMPANY 14.37ms from Dallas, US
59.178.117.81 AS9829 National Internet Backbone 5.59ms from Delhi, IN
85.98.216.1 AS9121 Turk Telekomunikasyon Anonim Sirketi 0.85ms from Denizli, TR
89.211.42.113 AS8781 Ooredoo Q.S.C. 0.59ms from Doha, QA
93.230.143.209 AS3320 Deutsche Telekom AG 3.87ms from Duesseldorf, DE
129.206.234.1 AS553 BelWue-Koordination 3.85ms from Frankfurt am Main, DE
31.165.133.1 AS6730 Sunrise GmbH 1.23ms from Geneve, CH
183.234.137.161 AS9808 China Mobile Communications Group Co., Ltd. 6.04ms from Guangzhou, CN
154.214.137.145 AS134548 DXTL Tseung Kwan O Service 0.79ms from Hong Kong, HK
49.69.61.1 AS4134 CHINANET-BACKBONE 10.79ms from Huai'an, CN
105.227.222.1 AS37457 Telkom SA Ltd. 1.31ms from Johannesburg, ZA
102.212.5.241 AS211826 Istqrar for Servers Services Ltd 0.14ms from Kansas City, US
31.128.73.193 AS3326 Datagroup PJSC 0.48ms from Kyiv, UA

Traceroute

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

$
traceroute -a -n -q1 -f3 221.12.52.193
traceroute to 221.12.52.193 (221.12.52.193): 64 hops max, 52 byte packets
3 [AS749] 11.94.147.65 3.218 ms
4 [AS749] 11.94.138.93 4.546 ms
5 *
6 *
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Hangzhou, 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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