221.3.0.0/17

AS4837  ·  CHINA UNICOM China169 Backbone

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

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:         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:         XIAOFENG ZHANG
nic-hdl:        XZ14-AP
e-mail:         ip@pub.sd.cninfo.net
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 221.3.0.0/16

Range ASN Company Num of IPs
221.3.128.0/17 AS4837 China Unicom Yunnan province network 32,768

Hosted domains

There are 59 domain names hosted across 35 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
221.3.8.189 ssx5.cc 20
221.3.8.186 sdzqld.com 4
221.3.8.29 ofepay.com 2
221.3.83.202 xn--z4q21y8s0a.com 2
221.3.75.67 overreact.cn 1
221.3.99.176 toplink.wang 1
221.3.11.166 qddwp.com 1
221.3.9.218 sdarts.com.cn 1
221.3.105.192 wodediy.top 1
221.3.8.101 hxdc.net.cn 1
221.3.81.187 fileku.cn 1
221.3.42.99 oucwork.top 1
221.3.90.188 haiermi.com 1
221.3.12.163 sdyt.com.cn 1
221.3.40.234 saviordisk.top 1
221.3.66.108 yuens.ltd 1
221.3.19.121 160703.xyz 1
221.3.113.120 chinasayeah.com 1
221.3.11.10 iliqun.com 1
221.3.67.99 xingchenyuzhou.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

18,112 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
221.3.59.1 AS4837 CHINA UNICOM China169 Backbone 0.56ms from Qingdao, CN
221.3.0.225 AS4837 CHINA UNICOM China169 Backbone 0.64ms from Qingdao, CN
221.3.53.1 AS4837 CHINA UNICOM China169 Backbone 0.64ms from Qingdao, CN
221.3.68.1 AS4837 CHINA UNICOM China169 Backbone 0.72ms from Qingdao, CN
221.3.58.1 AS4837 CHINA UNICOM China169 Backbone 0.69ms from Qingdao, CN
221.3.20.129 AS4837 CHINA UNICOM China169 Backbone 0.64ms from Qingdao, CN
221.3.61.1 AS4837 CHINA UNICOM China169 Backbone 0.73ms from Qingdao, CN
221.3.15.1 AS4837 CHINA UNICOM China169 Backbone 0.77ms from Qingdao, CN
221.3.5.223 AS4837 CHINA UNICOM China169 Backbone 1.80ms from Qingdao, CN
221.3.27.1 AS4837 CHINA UNICOM China169 Backbone 2.47ms from Qingdao, CN
221.3.62.1 AS4837 CHINA UNICOM China169 Backbone 2.34ms from Qingdao, CN
221.3.11.253 AS4837 CHINA UNICOM China169 Backbone 0.59ms from Qingdao, CN
221.3.71.1 AS4837 CHINA UNICOM China169 Backbone 0.77ms from Qingdao, CN
221.3.54.1 AS4837 CHINA UNICOM China169 Backbone 0.69ms from Qingdao, CN
221.3.24.29 AS4837 CHINA UNICOM China169 Backbone 1.81ms from Qingdao, CN
221.3.2.193 AS4837 CHINA UNICOM China169 Backbone 0.60ms from Qingdao, CN
221.3.60.1 AS4837 CHINA UNICOM China169 Backbone 0.75ms from Qingdao, CN
221.3.52.1 AS4837 CHINA UNICOM China169 Backbone 0.59ms from Qingdao, CN
221.3.34.1 AS4837 CHINA UNICOM China169 Backbone 0.78ms from Qingdao, CN
221.3.30.1 AS4837 CHINA UNICOM China169 Backbone 0.85ms from Qingdao, CN
221.3.1.161 AS4837 CHINA UNICOM China169 Backbone 0.57ms from Qingdao, CN
221.3.42.1 AS4837 CHINA UNICOM China169 Backbone 0.71ms from Qingdao, CN
221.3.69.181 AS4837 CHINA UNICOM China169 Backbone 2.34ms from Qingdao, CN
221.3.22.1 AS4837 CHINA UNICOM China169 Backbone 0.68ms from Qingdao, CN
221.3.16.1 AS4837 CHINA UNICOM China169 Backbone 0.63ms 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
84.104.37.1 AS33915 Vodafone Libertel B.V. 5.01ms from Amsterdam, NL
80.114.246.1 AS33915 Vodafone Libertel B.V. 4.93ms from Amsterdam, NL
84.30.231.1 AS33915 Vodafone Libertel B.V. 4.81ms from Amsterdam, NL
98.175.99.49 AS22773 Cox Communications Inc. 1.01ms from Ashburn, US
24.158.248.1 AS20115 Charter Communications LLC 1.41ms from Atlanta, US
12.163.9.97 AS7018 AT&T Enterprises, LLC 2.11ms from Atlanta, US
58.136.156.1 AS133481 AIS Fibre 2.44ms from Bangkok, TH
117.13.20.1 AS4837 CHINA UNICOM China169 Backbone 5.29ms from Beijing, CN
35.94.228.49 AS16509 Amazon.com, Inc. 0.53ms from Boardman, US
175.101.154.1 AS17754 Excellmedia 12.64ms from Chennai, IN
65.58.122.1 AS3356 Level 3 Parent, LLC 9.85ms from Chicago, US
8.36.56.1 AS399054 K.A.S. Cable T.V., Inc. 10.08ms from Chicago, US
209.170.242.145 AS62642 Bigleaf Networks, Inc. 2.95ms from Chicago, US
217.60.13.1 AS210448 ITSISTEM P&V SRL 0.52ms from Chisinau, MD
27.15.248.1 AS4837 CHINA UNICOM China169 Backbone 6.52ms from Chongqing, CN
3.144.88.1 AS16509 Amazon.com, Inc. 0.17ms from Columbus, US
190.138.63.225 AS7303 Telecom Argentina S.A. 0.45ms from Cordoba, AR
64.226.150.1 AS26831 Cameron Communications, LLC 7.96ms from Dallas, US
103.220.157.1 AS135251 Microtel Internet Network Pvt Ltd 9.16ms from Delhi, IN
96.111.94.65 AS7922 Comcast Cable Communications, LLC 1.24ms from Denver, US
199.46.120.1 AS398479 Z4 Internet 0.26ms from Draper, US
91.142.111.177 AS31122 Digiweb ltd 4.25ms from Dublin, IE
46.5.124.1 AS3209 Vodafone GmbH 3.29ms from Frankfurt am Main, DE
14.232.101.129 AS45899 VNPT Corp 1.21ms from Hanoi, VN
50.45.240.1 AS20055 Wholesail networks LLC 1.29ms from Hillsboro, US

Traceroute

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

$
traceroute -a -n -q1 -f3 -m10 221.3.57.148
traceroute to 221.3.57.148 (221.3.57.148): 10 hops max, 52 byte packets
3 [AS749] 11.168.63.250 2.435 ms
4 *
5 *
6 *
7 [AS4837] 219.158.35.1 2.721 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Frankfurt am Main, DE
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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs