1. All IP Ranges
  2. 221.0.0.0/8
  3. 221.2.0.0/16
  4. AS4837  | 221.2.0.0/16

221.2.0.0/16

AS4837  ·  CHINA UNICOM China169 Backbone

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Summary

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

WHOIS Details

inetnum:        221.0.0.0 - 221.3.127.255
netname:        UNICOM-SD
descr:          China Unicom Shandong province network
descr:          China Unicom
country:        CN
admin-c:        CH1302-AP
tech-c:         XZ14-AP
abuse-c:        AC1718-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNCGROUP-SD
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2025-01-22T13:20:23Z
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:         XIAOFENG ZHANG
nic-hdl:        XZ14-AP
e-mail:         [email protected]
address:        Jinan,Shandong P.R China
phone:          +86-531-6666666
fax-no:         +86-531-6666666
country:        CN
mnt-by:         MAINT-ZXF
last-modified:  2008-09-04T07:29:35Z
source:         APNIC

route:          221.2.0.0/16
descr:          CNC Group CHINA169 Shandong Province Network
country:        CN
origin:         AS4837
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2008-09-04T07:54:44Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 221.0.0.0/8

Range ASN Company Num of IPs
221.144.0.0/12 AS9856 Korea Telecom 1,048,576
221.144.0.0/12 AS4766 Korea Telecom 1,048,576
221.240.0.0/12 AS17506 ARTERIA Networks Corporation 1,048,576
221.144.0.0/12 AS152214 Korea Telecom 1,048,576
221.224.0.0/13 AS137697 CHINANET jiangsu province network 524,288
221.184.0.0/13 AS4713 NTT DOCOMO BUSINESS,Inc. 524,288
221.224.0.0/13 AS23650 CHINANET jiangsu province network 524,288
221.176.0.0/13 AS132510 China Mobile Communications Corporation 524,288
221.224.0.0/13 AS138950 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS134756 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS4809 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS131325 CHINANET jiangsu province network 524,288
221.176.0.0/13 AS141425 China Mobile Communications Corporation 524,288
221.224.0.0/13 AS146966 CHINANET jiangsu province network 524,288
221.176.0.0/13 AS9808 China Mobile Communications Corporation 524,288
221.224.0.0/13 AS140292 CHINANET jiangsu province network 524,288
221.176.0.0/13 AS139080 China Mobile Communications Corporation 524,288
221.224.0.0/13 AS134770 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS137702 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS4134 CHINANET jiangsu province network 524,288
221.160.0.0/13 AS4766 Korea Telecom 524,288
221.176.0.0/13 AS56044 China Mobile Communications Corporation 524,288
221.176.0.0/13 AS56046 China Mobile Communications Corporation 524,288
221.176.0.0/13 AS56048 China Mobile Communications Corporation 524,288
221.176.0.0/13 AS24445 China Mobile Communications Corporation 524,288
221.216.0.0/13 AS4808 China Unicom Beijing province network 524,288
221.176.0.0/13 AS56040 China Mobile Communications Corporation 524,288
221.176.0.0/13 AS56042 China Mobile Communications Corporation 524,288
221.140.0.0/14 AS9318 SK Broadband Co Ltd 262,144
221.124.0.0/14 AS9304 HGC Global Communications Limited 262,144
221.232.0.0/14 AS58563 CHINANET Hubei province network 262,144
221.200.0.0/14 AS4837 China Unicom Liaoning Province Network 262,144
221.232.0.0/14 AS4134 CHINANET Hubei province network 262,144
221.214.0.0/15 AS4837 China Unicom Shandong province network 131,072
221.130.0.0/15 AS9808 China Mobile Communications Corporation 131,072
221.170.0.0/15 AS2518 BIGLOBE Inc. 131,072
221.8.0.0/15 AS4837 China Unicom JILIN province network 131,072
221.204.0.0/15 AS4837 China Unicom Shanxi Province Network 131,072
221.130.0.0/15 AS56042 China Mobile Communications Corporation 131,072
221.130.0.0/15 AS56041 China Mobile Communications Corporation 131,072
221.138.0.0/15 AS9318 SK Broadband Co Ltd 131,072
221.119.0.0/16 AS2516 KDDI CORPORATION 65,536
221.6.0.0/16 AS140717 China Unicom Jiangsu province network 65,536
221.169.0.0/16 AS4780 Digital United I 65,536
221.168.0.0/16 AS4766 Korea Telecom 65,536
221.10.0.0/16 AS4837 China Unicom SiChuan province network 65,536
221.117.0.0/16 AS17506 ARTERIA Networks Corporation 65,536
221.115.0.0/16 AS17506 ARTERIA Networks Corporation 65,536
221.114.0.0/16 AS17506 ARTERIA Networks Corporation 65,536
221.112.0.0/16 AS17506 ARTERIA Networks Corporation 65,536

Hosted domains

There are 312 domain names hosted across 183 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
221.2.200.46 tjhjgg.com 25
221.2.73.233 healthgarden.com.cn 15
221.2.150.158 whjgbz.gov.cn 14
221.2.196.216 xn--fctt1mxs8b.xn--fiqz9s 9
221.2.150.133 jq12380.gov.cn 8
221.2.171.185 dstls.cn 6
221.2.171.7 shanghanw.cn 6
221.2.136.247 qiaoxiang.ren 5
221.2.79.242 carecpep.com 5
221.2.156.42 goldant.com 4
221.2.196.150 lc96596.com 4
221.2.149.10 stsp.org.cn 4
221.2.171.221 haiwangbpm.cn 4
221.2.43.13 gcss.com.cn 4
221.2.204.122 cpzyyydzf.com 4
221.2.168.203 anrannami.cn 4
221.2.73.229 liankai.com 4
221.2.43.68 suntissue.org 3
221.2.137.140 whzfgjj.com 3
221.2.155.89 jiachenghb.cn 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
Read more

Pingable IPs

16,891 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
221.2.0.190 AS4837 CHINA UNICOM China169 Backbone 6.68ms from Qingdao, CN
221.2.1.9 AS4837 CHINA UNICOM China169 Backbone 6.49ms from Qingdao, CN
221.2.3.134 AS4837 CHINA UNICOM China169 Backbone 6.05ms from Qingdao, CN
221.2.6.234 AS4837 CHINA UNICOM China169 Backbone 8.27ms from Qingdao, CN
221.2.8.1 AS4837 CHINA UNICOM China169 Backbone 8.01ms from Qingdao, CN
221.2.9.254 AS4837 CHINA UNICOM China169 Backbone 8.38ms from Qingdao, CN
221.2.5.108 AS4837 CHINA UNICOM China169 Backbone 8.28ms from Qingdao, CN
221.2.4.110 AS4837 CHINA UNICOM China169 Backbone 8.42ms from Qingdao, CN
221.2.2.137 AS4837 CHINA UNICOM China169 Backbone 0.38ms from Qingdao, CN
221.2.7.166 AS4837 CHINA UNICOM China169 Backbone 8.07ms from Qingdao, CN
221.2.255.13 AS4837 CHINA UNICOM China169 Backbone 4.18ms from Qingdao, CN
221.2.252.37 AS4837 CHINA UNICOM China169 Backbone 4.28ms from Qingdao, CN
221.2.254.45 AS4837 CHINA UNICOM China169 Backbone 4.16ms from Qingdao, CN
221.2.253.155 AS4837 CHINA UNICOM China169 Backbone 4.01ms from Qingdao, CN
221.2.251.1 AS4837 CHINA UNICOM China169 Backbone 5.03ms from Qingdao, CN
221.2.83.145 AS4837 CHINA UNICOM China169 Backbone 4.69ms from Qingdao, CN
221.2.244.233 AS4837 CHINA UNICOM China169 Backbone 5.07ms from Qingdao, CN
221.2.145.1 AS4837 CHINA UNICOM China169 Backbone 3.70ms from Qingdao, CN
221.2.232.89 AS4837 CHINA UNICOM China169 Backbone 4.06ms from Qingdao, CN
221.2.110.157 AS4837 CHINA UNICOM China169 Backbone 6.58ms from Qingdao, CN
221.2.103.162 AS4837 CHINA UNICOM China169 Backbone 5.37ms from Qingdao, CN
221.2.28.189 AS4837 CHINA UNICOM China169 Backbone 5.95ms from Qingdao, CN
221.2.168.193 AS4837 CHINA UNICOM China169 Backbone 4.55ms from Qingdao, CN
221.2.24.169 AS4837 CHINA UNICOM China169 Backbone 5.92ms from Qingdao, CN
221.2.49.217 AS4837 CHINA UNICOM China169 Backbone 2.47ms from Qingdao, 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
185.121.82.16 AS207333 Hoster.KZ - Astana 0.89ms from Astana, KZ
5.187.134.208 AS5483 Magyar Telekom Plc. 5.75ms from Budapest, HU
122.139.140.128 AS4837 CHINA UNICOM China169 Backbone 1.50ms from Changchun, CN
78.48.184.144 AS6805 Telefonica Germany GmbH & Co.OHG 4.15ms from Duesseldorf, DE
175.173.255.16 AS4837 CHINA UNICOM China169 Backbone 8.24ms from Liaoyang, CN
68.54.102.80 AS7922 Comcast Cable Communications, LLC 3.46ms from Minneapolis, US
15.237.138.224 AS16509 Amazon.com, Inc. 0.17ms from Paris, FR
73.96.185.240 AS7922 Comcast Cable Communications, LLC 2.29ms from Portland, US
59.23.206.16 AS4766 Korea Telecom 5.03ms from Seoul, KR
145.38.191.240 AS1103 SURF B.V. 0.54ms from Amsterdam, NL
83.235.179.112 AS6799 Ote SA (Hellenic Telecommunications Organisation) 1.64ms from Athens, GR
108.49.215.192 AS701 Verizon Business 1.36ms from Boston, US
102.96.227.224 AS36925 MEDITELECOM 16.99ms from Casablanca, MA
82.119.177.16 AS8881 1&1 Versatel GmbH 2.03ms from Frankfurt am Main, DE
83.51.135.0 AS3352 TELEFONICA DE ESPANA S.A.U. 8.70ms from Madrid, ES
83.39.160.32 AS3352 TELEFONICA DE ESPANA S.A.U. 1.73ms from Madrid, ES
2.96.77.224 AS13285 TalkTalk Communications Limited 6.03ms from Manchester, GB
20.42.230.112 AS8075 Microsoft Corporation 0.72ms from Melbourne, AU
95.242.80.112 AS3269 Telecom Italia S.p.A. 3.66ms from Milan, IT
217.231.199.192 AS3320 Deutsche Telekom AG 8.55ms from Nuernberg, DE
78.199.239.128 AS12322 Free SAS 1.41ms from Paris, FR
109.190.185.80 AS35540 OVH SAS 1.14ms from Paris, FR
44.219.218.128 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
38.35.147.224 AS265509 OPTOENLACES S.A. DE C.V. 4.49ms from Santiago de Querétaro, MX
113.23.129.64 AS38182 Extreme Broadband - Total Broadband Experience 1.66ms from Sepang, MY

Traceroute

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

$
traceroute -a -n -q1 -f2 221.2.46.1
traceroute to 221.2.46.1 (221.2.46.1): 64 hops max, 52 byte packets
3 *
5 *
7 [AS7552] 27.68.229.245 43.981 ms
8 [AS7552] 27.68.255.66 39.818 ms
9 [AS7552] 117.1.220.87 33.334 ms
10 [AS7473] 203.208.186.117 75.013 ms
12 [AS7473] 203.208.173.54 263.603 ms
13 [AS4837] 219.158.19.90 239.561 ms
14 *
15 *
16 *
17 [AS4837] 221.2.46.1 267.344 ms
Measurement taken from IPinfo ProbeNet in Hanoi, VN
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.

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