221.231.128.0/21

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 is invalid
mnt-by:         MAINT-CHINANET
last-modified:  2025-11-12T22:42:17Z
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 is invalid
abuse-mailbox:  anti-spam@chinatelecom.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-12T22:43:09Z
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 221.231.128.0/21

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 7 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
221.231.135.227 htzjtz.com.cn 2
221.231.135.166 htsc.com.cn 2
221.231.128.18 5ibp.cn 1
221.231.135.164 htscamc.com 1
221.231.134.227 tiny.com.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

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

IP Address ASN Details
221.231.135.176 AS137702 Nanjing, Jiangsu Province, P.R.China. 4.41ms 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
122.154.52.133 AS9931 The Communication Authoity of Thailand, CAT 13.43ms from Bangkok, TH
52.247.92.165 AS8075 Microsoft Corporation 0.40ms from Boydton, US
200.106.220.5 AS271886 COOPERATIVA LIMITADA DE CONSUMO POPULAR DE ELECTRICIDAD Y SERVICIOS ANEXOS DE COLONIA LAGUNA DE LOS PADRES 8.04ms from Buenos Aires, AR
221.211.91.213 AS4837 CHINA UNICOM China169 Backbone 9.86ms from Changchun, CN
67.184.172.213 AS7922 Comcast Cable Communications, LLC 4.62ms from Chicago, US
41.83.238.69 AS8346 SONATEL-AS Autonomous System 4.95ms from Dakar, SN
217.235.76.53 AS3320 Deutsche Telekom AG 8.56ms from Frankfurt am Main, DE
83.251.30.197 AS1257 Tele2 Sverige AB 12.16ms from Goeteborg, SE
119.121.147.149 AS4134 CHINANET-BACKBONE 1.01ms from Guangzhou, CN
186.3.185.197 AS27947 Telconet S.A 2.33ms from Guayaquil, EC
24.225.107.165 AS11232 Midcontinent Communications 5.87ms from Kansas City, US
67.182.59.213 AS7922 Comcast Cable Communications, LLC 9.87ms from Los Angeles, US
79.8.203.21 AS3269 Telecom Italia S.p.A. 4.32ms from Milan, IT
41.84.138.133 AS30844 Liquid Telecommunications Ltd 0.68ms from Nairobi, KE
116.147.21.117 AS4837 CHINA UNICOM China169 Backbone 6.55ms from Nanjing, CN
176.162.76.37 AS5410 Bouygues Telecom SA 1.55ms from Paris, FR
186.221.2.197 AS28573 Claro NXT Telecomunicacoes Ltda 7.72ms from Rio de Janeiro, BR
177.112.74.133 AS26599 TELEFÔNICA BRASIL S.A 5.52ms from Sao Paulo, BR
118.107.205.21 AS45352 IP ServerOne Solutions Sdn Bhd 0.36ms from Sepang, MY
58.240.192.21 AS4837 CHINA UNICOM China169 Backbone 3.97ms from Shanghai, CN
99.82.187.133 AS16509 Amazon.com, Inc. 0.66ms from Sydney, AU
211.15.237.53 AS2516 KDDI CORPORATION 2.33ms from Tokyo, JP
118.19.76.213 AS4713 NTT DOCOMO BUSINESS,Inc. 8.57ms from Tokyo, JP
185.145.111.245 AS212629 Sankt Galler Stadtwerke 2.92ms from Zuerich, CH
86.96.55.229 AS5384 Emirates Internet 2.44ms from Al Fujairah City, AE

Traceroute

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

$
traceroute -a -n -q1 -f4 -m9 221.231.134.243
traceroute to 221.231.134.243 (221.231.134.243): 9 hops max, 52 byte packets
4 [AS4134] 218.2.16.65 2.628 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Huai'an, CN
On

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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.

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