221.7.32.0/19

AS4837  ·  CHINA UNICOM China169 Backbone

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Summary

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

WHOIS Details

inetnum:        221.7.32.0 - 221.7.63.255
netname:        UNICOM-GS
descr:          China Unicom Gansu province network
descr:          China Unicom
country:        CN
admin-c:        CH1302-AP
tech-c:         YH137-AP
abuse-c:        AC1718-AP
status:         ALLOCATED PORTABLE
remarks:        service provider
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNCGROUP-GS
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2023-10-21T03:35:22Z
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:         yun hu
nic-hdl:        YH137-AP
e-mail:         [email protected]
address:        5/F Kaida Building 88 Qingyang Road Chengguan District,Lanzhou 730000,P.R. China
phone:          +86-931-2162064
fax-no:         +86-931-2190000
country:        CN
mnt-by:         MAINT-CNCGROUP-GS
last-modified:  2008-09-04T07:30:40Z
source:         APNIC

route:          221.7.32.0/19
descr:          CNC Group CHINA169 Gansu 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 221.7.0.0/16

Range ASN Company Num of IPs
221.7.128.0/17 AS4837 China Unicom Guangxi province network 32,768
221.7.0.0/19 AS4837 China Unicom Xinjiang province network 8,192

Hosted domains

There are 8 domain names hosted across 8 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
221.7.39.247 gsma.net.cn 1
221.7.36.238 yl-online.com.cn 1
221.7.49.235 ts749.com 1
221.7.41.89 gszx.gov.cn 1
221.7.50.159 tsfdcjy.com 1
221.7.41.10 jinyunzb.com 1
221.7.54.97 960934.com 1
221.7.40.228 yangwenlong.net 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

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

IP Address ASN Details
221.7.57.1 AS4837 CHINA UNICOM China169 Backbone 7.91ms from Lanzhou, CN
221.7.63.65 AS4837 CHINA UNICOM China169 Backbone 3.86ms from Lanzhou, CN
221.7.50.67 AS4837 CHINA UNICOM China169 Backbone 6.48ms from Lanzhou, CN
221.7.61.73 AS4837 CHINA UNICOM China169 Backbone 7.65ms from Lanzhou, CN
221.7.34.237 AS4837 CHINA UNICOM China169 Backbone 2.56ms from Lanzhou, CN
221.7.36.2 AS4837 CHINA UNICOM China169 Backbone 2.71ms from Lanzhou, CN
221.7.38.220 AS4837 CHINA UNICOM China169 Backbone 2.57ms from Lanzhou, CN
221.7.54.209 AS4837 CHINA UNICOM China169 Backbone 9.06ms from Lanzhou, CN
221.7.44.97 AS4837 CHINA UNICOM China169 Backbone 12.49ms from Lanzhou, CN
221.7.52.71 AS4837 CHINA UNICOM China169 Backbone 6.37ms from Lanzhou, CN
221.7.40.252 AS4837 CHINA UNICOM China169 Backbone 2.43ms from Lanzhou, CN
221.7.51.169 AS4837 CHINA UNICOM China169 Backbone 2.50ms from Lanzhou, CN
221.7.46.1 AS4837 CHINA UNICOM China169 Backbone 2.66ms from Lanzhou, CN
221.7.47.129 AS4837 CHINA UNICOM China169 Backbone 2.51ms from Lanzhou, CN
221.7.48.129 AS4837 CHINA UNICOM China169 Backbone 6.30ms from Lanzhou, CN
221.7.55.161 AS4837 CHINA UNICOM China169 Backbone 3.86ms from Lanzhou, CN
221.7.43.129 AS4837 CHINA UNICOM China169 Backbone 10.46ms from Lanzhou, CN
221.7.37.225 AS4837 CHINA UNICOM China169 Backbone 2.52ms from Lanzhou, CN
221.7.59.129 AS4837 CHINA UNICOM China169 Backbone 8.55ms from Lanzhou, CN
221.7.41.1 AS4837 CHINA UNICOM China169 Backbone 2.79ms from Lanzhou, CN
221.7.62.1 AS4837 CHINA UNICOM China169 Backbone 16.98ms from Xi'an, CN
221.7.60.29 AS4837 CHINA UNICOM China169 Backbone 6.77ms from Lanzhou, CN
221.7.32.161 AS4837 CHINA UNICOM China169 Backbone 2.38ms from Lanzhou, CN
221.7.49.193 AS4837 CHINA UNICOM China169 Backbone 6.50ms from Lanzhou, CN
221.7.42.97 AS4837 CHINA UNICOM China169 Backbone 10.46ms from Lanzhou, 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
124.184.71.115 AS1221 Telstra Limited 3.14ms from Adelaide, AU
77.168.140.179 AS1136 KPN B.V. 2.63ms from Amsterdam, NL
208.118.224.179 AS27552 TowardEX Technologies International, Inc. 0.29ms from Boston, US
173.91.76.99 AS10796 Charter Communications Inc 11.61ms from Flint, US
47.90.16.211 AS45102 Alibaba (US) Technology Co., Ltd. 0.67ms from Hong Kong, HK
76.172.43.83 AS20001 Charter Communications Inc 8.76ms from Honolulu, US
178.204.187.35 AS28840 PJSC "TATTELECOM" 1.18ms from Kazan, RU
72.27.166.179 AS30689 FLOW 1.63ms from Kingston, JM
82.6.182.179 AS5089 Virgin Media Limited 10.49ms from London, GB
65.128.133.3 AS209 CenturyLink Communications, LLC 2.27ms from Minneapolis, US
178.216.162.3 AS29069 PJSC Rostelecom 2.14ms from Moscow, RU
125.111.176.147 AS4134 CHINANET-BACKBONE 1.93ms from Ningbo, CN
124.98.95.67 AS4713 NTT DOCOMO BUSINESS,Inc. 3.78ms from Osaka, JP
150.217.148.99 AS137 Consortium GARR 6.25ms from Rome, IT
178.162.40.179 AS20807 JSC ER-Telecom Holding 1.31ms from Saint Petersburg, RU
125.186.156.67 AS17858 LG POWERCOMM 1.93ms from Seoul, KR
121.168.72.83 AS4766 Korea Telecom 1.72ms from Seoul, KR
183.105.233.243 AS4766 Korea Telecom 7.10ms from Seoul, KR
43.134.37.115 AS132203 Tencent Building, Kejizhongyi Avenue 0.31ms from Singapore, SG
85.29.225.195 AS3249 Telia Eesti AS 7.18ms from Tallinn, EE
13.158.207.211 AS16509 Amazon.com, Inc. 0.20ms from Tokyo, JP
153.165.55.131 AS4713 NTT DOCOMO BUSINESS,Inc. 2.87ms from Tokyo, JP
153.142.201.83 AS4713 NTT DOCOMO BUSINESS,Inc. 2.37ms from Tokyo, JP
60.62.138.179 AS9824 JCOM Co., Ltd. 11.65ms from Tokyo, JP
91.205.235.3 AS273194 FAOBA DC S A S 1.85ms from Bogotá, CO

Traceroute

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

$
traceroute -a -n -q1 -f2 221.7.39.129
traceroute to 221.7.39.129 (221.7.39.129): 64 hops max, 52 byte packets
3 *
4 *
5 *
6 *
9 *
10 *
11 *
12 *
13 [AS4837] 221.7.39.129 2.554 ms
Measurement taken from IPinfo ProbeNet in Lanzhou, 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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