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
221.231.137.209 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
221.231.142.227 AS137702 Nanjing, Jiangsu Province, P.R.China. 4.13ms 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
221.231.143.10 AS137702 Nanjing, Jiangsu Province, P.R.China. 7.52ms from Nanjing, CN
221.231.140.167 AS137702 Nanjing, Jiangsu Province, P.R.China. 3.92ms 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
96.127.127.69 AS8987 Amazon Data Services Ireland Ltd 0.76ms from Boardman, US
190.1.202.101 AS10299 EMPRESAS MUNICIPALES DE CALI E.I.C.E. E.S.P. 8.49ms from Bogota, CO
89.123.254.213 AS9050 Orange Romania S.A. 2.94ms from Bucharest, RO
88.238.139.229 AS47331 TTNet A.S. 11.03ms from Bursa, TR
121.243.39.21 AS4755 TATA Communications formerly VSNL is Leading ISP 0.69ms from Chennai, IN
70.119.95.165 AS11427 Charter Communications Inc 15.14ms from Dallas, US
89.101.183.181 AS6830 Liberty Global Europe Holding B.V. 4.40ms from Dublin, IE
18.192.139.5 AS16509 Amazon.com, Inc. 0.15ms from Frankfurt am Main, DE
20.79.182.133 AS8075 Microsoft Corporation 0.31ms from Frankfurt am Main, DE
116.104.178.21 AS7552 Viettel Group 1.41ms from Hanoi, VN
13.134.127.245 AS16509 Amazon.com, Inc. 0.19ms from London, GB
82.0.26.21 AS5089 Virgin Media Limited 6.91ms from London, GB
40.99.240.245 AS8075 Microsoft Corporation 0.20ms from San Antonio, US
190.20.143.21 AS7418 TELEFÓNICA CHILE S.A. 3.58ms from Santiago, CL
49.173.27.165 AS17858 LG POWERCOMM 4.99ms from Seoul, KR
211.203.203.37 AS9318 SK Broadband Co Ltd 6.01ms from Seoul, KR
202.36.44.197 AS18119 ACSData 0.59ms from Auckland, NZ
75.210.57.37 AS6167 Verizon Business 9.39ms from Chicago, US
45.21.68.5 AS7018 AT&T Enterprises, LLC 19.10ms from Chicago, US
76.139.1.213 AS7922 Comcast Cable Communications, LLC 12.54ms from Chicago, US
208.122.203.101 AS27589 MOJOHOST 0.26ms from Detroit, US
193.229.109.53 AS719 Elisa Oyj 0.60ms from Helsinki, FI
18.134.104.53 AS16509 Amazon.com, Inc. 0.17ms from London, GB
80.4.230.85 AS5089 Virgin Media Limited 8.98ms from London, GB
142.190.163.149 AS13760 Uniti Fiber Holdings Inc. 5.12ms from Miami, US

Traceroute

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

$
traceroute -a -n -q1 -f5 221.231.138.216
traceroute to 221.231.138.216 (221.231.138.216): 64 hops max, 52 byte packets
5 [AS4134] 218.2.79.169 5.547 ms
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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