221.10.0.0/16

AS4837 · CHINA UNICOM China169 Backbone

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Summary

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

WHOIS Details

inetnum:        221.10.0.0 - 221.10.255.255
netname:        UNICOM-SC
descr:          China Unicom SiChuan province network
descr:          China Unicom
country:        CN
admin-c:        CH1302-AP
tech-c:         XX288-AP
abuse-c:        AC1718-AP
status:         ALLOCATED PORTABLE
remarks:        service provider
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNCGROUP-SC
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2025-01-22T13:11:17Z
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:         Xifei Xie
nic-hdl:        XX288-AP
e-mail:         [email protected]
address:        Tianfu Road High-Tec international square C,Chengdu,Sichuan 610041,China
phone:          +86-28-66850327
fax-no:         +86-28-66850327
country:        CN
mnt-by:         MAINT-CNCGROUP-SC
last-modified:  2010-12-27T03:36:01Z
source:         APNIC

route:          221.10.0.0/16
descr:          CNC Group CHINA169 Sichuan 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	AS152214	Korea Telecom	1,048,576
221.240.0.0/12	AS17506	ARTERIA Networks Corporation	1,048,576
221.144.0.0/12	AS4766	Korea Telecom	1,048,576
221.144.0.0/12	AS9856	Korea Telecom	1,048,576
221.216.0.0/13	AS4808	China Unicom Beijing province network	524,288
221.176.0.0/13	AS9808	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS137702	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS56044	China Mobile Communications Corporation	524,288
221.176.0.0/13	AS139080	China Mobile Communications Corporation	524,288
221.160.0.0/13	AS4766	Korea Telecom	524,288
221.176.0.0/13	AS132510	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS4134	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS56042	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS134756	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS131325	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS146966	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS140292	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS56046	China Mobile Communications Corporation	524,288
221.176.0.0/13	AS141425	China Mobile Communications Corporation	524,288
221.176.0.0/13	AS56040	China Mobile Communications Corporation	524,288
221.184.0.0/13	AS4713	NTT DOCOMO BUSINESS,Inc.	524,288
221.224.0.0/13	AS4809	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS24445	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS134770	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS23650	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS56048	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS138950	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS137697	CHINANET jiangsu province network	524,288
221.124.0.0/14	AS9304	HGC Global Communications Limited	262,144
221.232.0.0/14	AS4134	CHINANET Hubei province network	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
221.140.0.0/14	AS9318	SK Broadband Co Ltd	262,144
221.8.0.0/15	AS4837	China Unicom JILIN province network	131,072
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
221.138.0.0/15	AS9318	SK Broadband Co Ltd	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
221.170.0.0/15	AS2518	BIGLOBE Inc.	131,072
221.6.0.0/16	AS140717	China Unicom Jiangsu province network	65,536
221.116.0.0/16	AS17506	ARTERIA Networks Corporation	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
221.129.0.0/16	AS23841	TIANJIN BROADCAST & TV NETWORK CO. LTD	65,536
221.119.0.0/16	AS2516	KDDI CORPORATION	65,536
221.168.0.0/16	AS4766	Korea Telecom	65,536

Hosted domains

There are 147 domain names hosted across 93 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
221.10.90.154	xn--vuq43sisy1na.xn--fiqs8s	10
221.10.90.164	sjkj.org.cn	8
221.10.90.140	hjxy.net.cn	7
221.10.10.10	555zb.tv	5
221.10.253.220	medi-plex.com.cn	5
221.10.254.93	lxke.cn	4
221.10.254.28	y-cn.com	4
221.10.71.102	pcxjcy.gov.cn	3
221.10.5.194	mpdamai.com	3
221.10.21.170	nankanshan.cn	3
221.10.93.199	hplpb.com.cn	3
221.10.90.153	wxcs.net.cn	3
221.10.27.91	tanglanzhi.com	3
221.10.150.18	800811.com	2
221.10.120.183	lsep96500.com	2
221.10.101.100	moeeye.cn	2
221.10.97.229	scmy120.com	2
221.10.254.64	ibh.hk	2
221.10.33.88	bzzyjsxy.cn	2
221.10.137.57	scxskfw.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

Read more

Pingable IPs

8,485 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
221.10.106.1	AS4837 CHINA UNICOM China169 Backbone	`4.48ms` from Chengdu, CN
221.10.125.129	AS4837 CHINA UNICOM China169 Backbone	`7.76ms` from Chengdu, CN
221.10.118.235	AS4837 CHINA UNICOM China169 Backbone	`5.19ms` from Chengdu, CN
221.10.202.51	AS4837 CHINA UNICOM China169 Backbone	`4.16ms` from Chengdu, CN
221.10.244.240	AS4837 CHINA UNICOM China169 Backbone	`4.31ms` from Chengdu, CN
221.10.127.19	AS4837 CHINA UNICOM China169 Backbone	`7.88ms` from Chengdu, CN
221.10.254.129	AS4837 CHINA UNICOM China169 Backbone	`5.04ms` from Chengdu, CN
221.10.129.1	AS4837 CHINA UNICOM China169 Backbone	`7.94ms` from Chengdu, CN
221.10.124.129	AS4837 CHINA UNICOM China169 Backbone	`7.35ms` from Chengdu, CN
221.10.142.1	AS4837 CHINA UNICOM China169 Backbone	`6.58ms` from Chengdu, CN
221.10.222.35	AS4837 CHINA UNICOM China169 Backbone	`5.54ms` from Chengdu, CN
221.10.143.1	AS4837 CHINA UNICOM China169 Backbone	`7.21ms` from Chengdu, CN
221.10.148.228	AS4837 CHINA UNICOM China169 Backbone	`7.18ms` from Chengdu, CN
221.10.104.1	AS4837 CHINA UNICOM China169 Backbone	`4.22ms` from Chengdu, CN
221.10.193.194	AS4837 CHINA UNICOM China169 Backbone	`6.57ms` from Chengdu, CN
221.10.226.154	AS4837 CHINA UNICOM China169 Backbone	`8.28ms` from Chengdu, CN
221.10.121.1	AS4837 CHINA UNICOM China169 Backbone	`5.09ms` from Chengdu, CN
221.10.137.67	AS4837 CHINA UNICOM China169 Backbone	`6.77ms` from Chengdu, CN
221.10.163.21	AS4837 CHINA UNICOM China169 Backbone	`7.15ms` from Chengdu, CN
221.10.128.74	AS4837 CHINA UNICOM China169 Backbone	`7.84ms` from Chengdu, CN
221.10.113.153	AS4837 CHINA UNICOM China169 Backbone	`5.30ms` from Chengdu, CN
221.10.249.193	AS4837 CHINA UNICOM China169 Backbone	`6.74ms` from Chengdu, CN
221.10.223.1	AS4837 CHINA UNICOM China169 Backbone	`8.93ms` from Chengdu, CN
221.10.199.46	AS4837 CHINA UNICOM China169 Backbone	`8.78ms` from Chengdu, CN
221.10.101.153	AS4837 CHINA UNICOM China169 Backbone	`3.21ms` from Chengdu, 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
108.208.75.96	AS7018 AT&T Enterprises, LLC	`13.61ms` from Chicago, US
142.79.109.192	AS53508 Cablelynx	`9.64ms` from Dallas, US
204.3.240.0	AS140666 ANY DIGITAL PTE. LTD.	`11.84ms` from Jakarta, ID
79.77.53.208	AS13285 TalkTalk Communications Limited	`4.41ms` from London, GB
185.78.91.48	AS16353 Merula Limited	`4.34ms` from London, GB
87.129.71.0	AS3320 Deutsche Telekom AG	`1.07ms` from Nuernberg, DE
208.127.141.16	AS394089 Google LLC	`0.92ms` from Oudeschip, NL
221.248.126.192	AS17506 ARTERIA Networks Corporation	`2.39ms` from Tokyo, JP
85.6.131.0	AS3303 Swisscom (Switzerland) Ltd	`2.37ms` from Zuerich, CH
20.86.116.0	AS8075 Microsoft Corporation	`0.27ms` from Amsterdam, NL
192.136.241.48	AS11427 Charter Communications Inc	`14.99ms` from Houston, US
18.60.226.208	AS16509 Amazon.com, Inc.	`1.25ms` from Hyderabad, IN
182.178.83.144	AS17557 Pakistan Telecommunication Company Limited	`4.61ms` from Karachi, PK
80.205.31.16	AS3269 Telecom Italia S.p.A.	`3.38ms` from Milan, IT
151.104.135.192	AS54253 Oracle Corporation	`2.69ms` from Muscat, OM
210.113.35.224	AS4766 Korea Telecom	`1.30ms` from Seoul, KR
119.241.184.128	AS2518 BIGLOBE Inc.	`10.16ms` from Tokyo, JP
162.27.162.176	AS39174 Walstead Krakow Sp. z o.o.	`1.34ms` from Warsaw, PL
42.123.102.0	AS58519 Cloud Computing Corporation	`6.76ms` from Chongqing, CN
67.190.57.208	AS7922 Comcast Cable Communications, LLC	`2.49ms` from Denver, US
79.197.115.16	AS3320 Deutsche Telekom AG	`6.02ms` from Duesseldorf, DE
158.177.0.112	AS36351 IBM Cloud	`0.87ms` from Frankfurt am Main, DE
151.80.146.240	AS16276 OVH SAS	`0.15ms` from Gravelines, FR
119.91.68.224	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.20ms` from Guangzhou, CN
39.32.201.80	AS17557 Pakistan Telecommunication Company Limited	`12.94ms` from Islamabad, PK

Traceroute

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

traceroute -a -n -q1 -f4 -m10 221.10.1.21

traceroute to 221.10.1.21 (221.10.1.21): 10 hops max, 52 byte packets

4 [AS7922] 66.208.216.73 1.37 ms

5 [AS7922] 75.149.230.150 219.547 ms

6 *

7 [AS4837] 219.158.3.161 240.226 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On December 6th 2025

What are IP address ranges?

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