221.231.136.0/21

AS137702  ·  Nanjing, Jiangsu Province, P.R.China.

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Summary

Country China
Domain chinatelecom.cn
ASN AS137702
Parent Range 221.224.0.0/13
Registry APNIC
ID CHINANET-JS

WHOIS Details

inetnum:        221.224.0.0 - 221.231.255.255
netname:        CHINANET-JS
descr:          CHINANET jiangsu province network
descr:          China Telecom
descr:          A12,Xin-Jie-Kou-Wai Street
descr:          Beijing 100088
country:        CN
admin-c:        CH93-AP
tech-c:         CJ186-AP
abuse-c:        AC1573-AP
status:         ALLOCATED PORTABLE
remarks:        This object can only modify by APNIC hostmaster
remarks:        If you wish to modify this object details please
remarks:        send email to hostmaster@apnic.net with your
remarks:        organisation account name in the subject line.
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CHINANET-JS
mnt-routes:     MAINT-CHINANET-JS
mnt-irt:        IRT-CHINANET-CN
last-modified:  2021-06-15T08:06:37Z
source:         APNIC

irt:            IRT-CHINANET-CN
address:        No.31 ,jingrong street,beijing
address:        100032
e-mail:         anti-spam@chinatelecom.cn
abuse-mailbox:  anti-spam@chinatelecom.cn
admin-c:        CH93-AP
tech-c:         CH93-AP
auth:           # Filtered
remarks:        anti-spam@chinatelecom.cn was validated on 2025-11-13
mnt-by:         MAINT-CHINANET
last-modified:  2025-11-18T00:26:23Z
source:         APNIC

role:           ABUSE CHINANETCN
country:        ZZ
address:        No.31 ,jingrong street,beijing
address:        100032
phone:          +000000000
e-mail:         anti-spam@chinatelecom.cn
admin-c:        CH93-AP
tech-c:         CH93-AP
nic-hdl:        AC1573-AP
remarks:        Generated from irt object IRT-CHINANET-CN
remarks:        anti-spam@chinatelecom.cn was validated on 2025-11-13
abuse-mailbox:  anti-spam@chinatelecom.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-13T14:15:15Z
source:         APNIC

role:           CHINANET JIANGSU
address:        260 Zhongyang Road,Nanjing 210037
country:        CN
phone:          +86-25-87799222
e-mail:         jsipmanager@163.com
remarks:        send anti-spam reports tojsipmanager@163.com
remarks:        send abuse reports tojsipmanager@163.com
remarks:        times in GMT+8
remarks:        www.jsinfo.net
admin-c:        CH360-AP
tech-c:         CS306-AP
tech-c:         CN142-AP
nic-hdl:        CJ186-AP
notify:         jsipmanager@163.com
mnt-by:         MAINT-CHINANET-JS
last-modified:  2022-08-05T15:34:47Z
source:         APNIC

person:         Chinanet Hostmaster
nic-hdl:        CH93-AP
e-mail:         anti-spam@chinatelecom.cn
address:        No.31 ,jingrong street,beijing
address:        100032
phone:          +86-10-58501724
fax-no:         +86-10-58501724
country:        CN
mnt-by:         MAINT-CHINANET
last-modified:  2022-02-28T06:53:44Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 221.231.136.0/21

Range ASN Company Num of IPs
221.224.0.0/13 AS131325 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS134756 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS134770 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS137697 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS137702 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS138950 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS140292 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS146966 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS23650 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS4134 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS4809 CHINANET jiangsu province network 524,288

Nearby Ranges

BGP prefixes that overlap with 221.231.0.0/16

Range ASN Company Num of IPs
221.224.0.0/13 AS131325 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS134756 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS134770 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS137697 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS137702 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS138950 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS140292 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS146966 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS23650 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS4134 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS4809 CHINANET jiangsu province network 524,288

Hosted domains

There are 4,770 domain names hosted across 205 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
221.231.139.3 zjhysz.top 374
221.231.138.11 yimengren.com 276
221.231.140.184 tfyq.cn 236
221.231.138.112 szrunchi.com 229
221.231.138.87 sunion-gs.top 228
221.231.137.89 chinahuxiji.com.cn 220
221.231.138.20 center3.cn 194
221.231.139.59 zq3y.com 191
221.231.138.103 kunhao.net 191
221.231.138.116 shvoic.com 178
221.231.140.212 dditt.com 178
221.231.138.85 w613.com 152
221.231.140.132 roncan.top 140
221.231.140.142 ycshuanghong.com 138
221.231.138.121 mets-casting.com 129
221.231.138.120 dejutz.com 125
221.231.139.9 aiplanet.top 121
221.231.138.52 mxryp.cn 120
221.231.138.22 yutengnet.top 85
221.231.138.55 goldencooperate.com 73

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

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

IP Address ASN Details
221.231.140.167 AS137702 Nanjing, Jiangsu Province, P.R.China. 3.92ms from Huai'an, CN
221.231.143.10 AS137702 Nanjing, Jiangsu Province, P.R.China. 7.52ms from Nanjing, CN
221.231.137.209 AS137702 Nanjing, Jiangsu Province, P.R.China. 3.96ms from Huai'an, CN
221.231.138.25 AS137702 Nanjing, Jiangsu Province, P.R.China. 5.30ms from Huai'an, CN
221.231.139.210 AS137702 Nanjing, Jiangsu Province, P.R.China. 3.89ms from Huai'an, CN
221.231.136.125 AS137702 Nanjing, Jiangsu Province, P.R.China. 6.97ms from Suzhou, CN
221.231.142.227 AS137702 Nanjing, Jiangsu Province, P.R.China. 4.13ms from Huai'an, 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
51.158.22.53 AS12876 SCALEWAY S.A.S. 0.24ms from Amsterdam, NL
20.101.175.133 AS8075 Microsoft Corporation 0.26ms from Amsterdam, NL
208.48.163.5 AS4455 IX Reach Ltd 0.62ms from Chicago, US
69.240.46.69 AS7922 Comcast Cable Communications, LLC 7.15ms from Chicago, US
189.187.153.165 AS8151 UNINET 5.55ms from Guadalajara, MX
218.16.221.149 AS140308 CHINATELECOM Guangdong province Zhuhai 5G network 7.46ms from Guangzhou, CN
45.220.61.133 AS328112 Linux Based Systems Design SA (Pty) Ltd 0.27ms from Johannesburg, ZA
175.165.125.149 AS4837 CHINA UNICOM China169 Backbone 6.24ms from Liaoyang, CN
64.227.38.165 AS14061 DigitalOcean, LLC 0.21ms from London, GB
81.96.243.229 AS5089 Virgin Media Limited 6.89ms from London, GB
188.86.22.53 AS12430 VODAFONE ESPANA S.A.U. 2.02ms from Madrid, ES
123.176.181.149 AS17939 miyazaki cabletelevision network Co.,LTD 15.10ms from Osaka, JP
211.203.203.37 AS9318 SK Broadband Co Ltd 6.01ms from Seoul, KR
1.117.169.197 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.51ms from Shanghai, CN
120.204.51.69 AS9808 China Mobile Communications Group Co., Ltd. 1.96ms from Shanghai, CN
61.56.71.21 AS9244 Diyixian.com (TW) Limited 1.18ms from Taipei, TW
84.240.53.37 AS21211 Penkiu kontinentu komunikaciju centras, Ltd. 0.50ms from Vilnius, LT
183.250.171.85 AS9808 China Mobile Communications Group Co., Ltd. 6.87ms from Xiamen, CN
125.45.67.117 AS4837 CHINA UNICOM China169 Backbone 3.79ms from Zhengzhou, CN
35.241.240.213 AS396982 Google LLC 0.12ms from Brussels, BE
217.249.54.229 AS3320 Deutsche Telekom AG 6.29ms from Frankfurt am Main, DE
80.173.208.133 AS41110 DSLmobil GmbH 6.50ms from Frankfurt am Main, DE
189.163.86.181 AS8151 UNINET 0.99ms from Guadalajara, MX
186.70.151.37 AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC) 13.05ms from Guayaquil, EC
91.155.170.133 AS719 Elisa Oyj 1.11ms from Helsinki, FI

Traceroute

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

$
traceroute -a -n -q1 -f4 221.231.140.167
traceroute to 221.231.140.167 (221.231.140.167): 64 hops max, 52 byte packets
5 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Huai'an, 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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