221.12.128.0/18

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 28 domain names hosted across 27 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
221.12.175.171 pinnettech.com 2
221.12.154.235 leidatech.com 2
221.12.142.42 ihive.top 1
221.12.172.236 hsrd.cn 1
221.12.134.114 joysonbike.com 1
221.12.164.86 kalaile.com 1
221.12.145.162 qtnsyh.net 1
221.12.164.217 jinsenyulin.com 1
221.12.163.39 fenghegu.com 1
221.12.145.26 ruipt.com 1
221.12.138.143 21js.com 1
221.12.132.22 hengfengtradeshow.com 1
221.12.175.227 vilebrequin.com.cn 1
221.12.173.250 mybank.cc 1
221.12.162.2 zpt.com 1
221.12.153.78 zseteng.com 1
221.12.138.88 lyrt.com.cn 1
221.12.163.3 zcyyw.net 1
221.12.166.145 rajks.net 1
221.12.175.170 pinnettech.com 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

2,809 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
221.12.178.21 AS4837 CHINA UNICOM China169 Backbone 5.57ms from Hangzhou, CN
221.12.137.81 AS4837 CHINA UNICOM China169 Backbone 7.32ms from Hangzhou, CN
221.12.168.225 AS4837 CHINA UNICOM China169 Backbone 3.62ms from Hangzhou, CN
221.12.144.91 AS4837 CHINA UNICOM China169 Backbone 6.93ms from Hangzhou, CN
221.12.148.202 AS4837 CHINA UNICOM China169 Backbone 7.15ms from Hangzhou, CN
221.12.130.217 AS4837 CHINA UNICOM China169 Backbone 6.86ms from Hangzhou, CN
221.12.128.149 AS4837 CHINA UNICOM China169 Backbone 5.25ms from Hangzhou, CN
221.12.152.69 AS4837 CHINA UNICOM China169 Backbone 6.90ms from Hangzhou, CN
221.12.131.149 AS4837 CHINA UNICOM China169 Backbone 7.71ms from Hangzhou, CN
221.12.143.213 AS4837 CHINA UNICOM China169 Backbone 3.33ms from Hangzhou, CN
221.12.166.33 AS4837 CHINA UNICOM China169 Backbone 7.76ms from Hangzhou, CN
221.12.175.225 AS4837 CHINA UNICOM China169 Backbone 4.08ms from Hangzhou, CN
221.12.132.85 AS4837 CHINA UNICOM China169 Backbone 6.76ms from Hangzhou, CN
221.12.161.33 AS4837 CHINA UNICOM China169 Backbone 12.68ms from Hangzhou, CN
221.12.129.177 AS4837 CHINA UNICOM China169 Backbone 6.84ms from Hangzhou, CN
221.12.146.149 AS4837 CHINA UNICOM China169 Backbone 8.71ms from Shanghai, CN
221.12.149.137 AS4837 CHINA UNICOM China169 Backbone 8.70ms from Hangzhou, CN
221.12.157.1 AS4837 CHINA UNICOM China169 Backbone 7.28ms from Hangzhou, CN
221.12.163.37 AS4837 CHINA UNICOM China169 Backbone 8.56ms from Shanghai, CN
221.12.141.249 AS4837 CHINA UNICOM China169 Backbone 7.25ms from Hangzhou, CN
221.12.150.45 AS4837 CHINA UNICOM China169 Backbone 7.00ms from Hangzhou, CN
221.12.176.47 AS4837 CHINA UNICOM China169 Backbone 5.76ms from Hangzhou, CN
221.12.164.115 AS4837 CHINA UNICOM China169 Backbone 6.88ms from Hangzhou, CN
221.12.154.69 AS4837 CHINA UNICOM China169 Backbone 7.22ms from Hangzhou, CN
221.12.135.183 AS4837 CHINA UNICOM China169 Backbone 8.83ms 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
46.144.175.34 AS1136 KPN B.V. 1.51ms from Amsterdam, NL
216.144.227.2 AS36352 HostPapa 0.34ms from Ashburn, US
181.235.144.34 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 8.09ms from Bogota, CO
111.42.197.34 AS132525 HeiLongJiang Mobile Communication Company Limited 7.03ms from Changchun, CN
152.115.197.50 AS31027 GlobalConnect A/S 0.38ms from Copenhagen, DK
35.222.9.98 AS396982 Google LLC 0.12ms from Council Bluffs, US
12.88.117.242 AS7018 AT&T Enterprises, LLC 7.81ms from Dallas, US
52.17.18.2 AS16509 Amazon.com, Inc. 0.19ms from Dublin, IE
94.79.188.178 AS3209 Vodafone GmbH 3.21ms from Frankfurt am Main, DE
150.241.146.2 AS55201 SkyQuantum Internet Service 0.30ms from Fremont, US
139.208.232.50 AS4837 CHINA UNICOM China169 Backbone 18.62ms from Liaoyang, CN
149.12.165.98 AS174 Cogent Communications, LLC 0.39ms from London, GB
90.202.63.114 AS5607 Sky UK Limited 4.94ms from London, GB
32.210.80.2 AS46690 Southern New England Telephone Company and SNET America, Inc. 5.69ms from New York City, US
38.77.130.194 AS174 Cogent Communications, LLC 1.82ms from Orlando, US
186.224.6.178 AS262755 AONET SERVICOS DE COMUNICACAO LTDA 7.04ms from Sao Paulo, BR
80.65.65.194 AS9146 BIHNET Autonomus System 0.92ms from Sarajevo, BA
175.232.182.210 AS4766 Korea Telecom 1.91ms from Seoul, KR
113.130.229.242 AS9845 LG HelloVision Corp. 8.16ms from Seoul, KR
115.217.245.82 AS4134 CHINANET-BACKBONE 8.47ms from Shanghai, CN
218.169.255.2 AS3462 Data Communication Business Group 2.58ms from Taipei, TW
76.66.235.2 AS577 Bell Canada 0.74ms from Toronto, CA
151.122.152.34 AS394409 Power Engineers, Inc. 0.87ms from Atlanta, US
204.111.107.2 AS4922 Shenandoah Cable Television LLC 4.48ms from Berkeley Springs, US
84.193.153.194 AS6848 Telenet BV 6.44ms from Brussels, BE

Traceroute

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

$
traceroute -a -n -q1 -f3 221.12.165.129
traceroute to 221.12.165.129 (221.12.165.129): 64 hops max, 52 byte packets
3 [AS749] 11.94.147.65 2.546 ms
4 *
5 *
8 *
9 *
10 [AS4837] 221.12.165.129 13.107 ms
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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