221.231.136.0/21

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

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

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 2025-04-24
mnt-by:         MAINT-CHINANET
last-modified:  2025-09-04T00:59:42Z
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 2025-04-24
abuse-mailbox:  anti-spam@chinatelecom.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-04-24T03:21:54Z
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 4,942 domain names hosted across 207 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 jszhdq.top 389
221.231.138.11 starmoonair.com.cn 282
221.231.140.184 tfyq.cn 237
221.231.138.112 ybaioa.com 233
221.231.138.87 zzssty.com 229
221.231.137.89 chinahuxiji.com.cn 220
221.231.138.20 center3.cn 197
221.231.138.103 kunhao.net 191
221.231.139.59 njshouchang.com 187
221.231.140.212 cncxv.cn 186
221.231.138.116 shvoic.com 180
221.231.139.9 0371daya.com 161
221.231.138.85 szruodian.com 152
221.231.140.132 ahyl.top 143
221.231.140.142 ycshuanghong.com 136
221.231.138.120 dejutz.com 132
221.231.138.121 tosoft.com.cn 131
221.231.138.52 tansir.cn 125
221.231.138.16 bjzjdx.com 92
221.231.138.22 yutengnet.top 86

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

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

IP Address ASN Details
221.231.139.210 AS137702 Nanjing, Jiangsu Province, P.R.China. 3.87ms from Huai'an, CN
221.231.143.10 AS137702 Nanjing, Jiangsu Province, P.R.China. 3.49ms from Huai'an, CN
221.231.138.79 AS137702 Nanjing, Jiangsu Province, P.R.China. 3.99ms from Huai'an, CN
221.231.140.167 AS137702 Nanjing, Jiangsu Province, P.R.China. 4.05ms from Huai'an, CN
221.231.142.227 AS137702 Nanjing, Jiangsu Province, P.R.China. 4.00ms from Huai'an, CN
221.231.136.121 AS137702 Nanjing, Jiangsu Province, P.R.China. 7.52ms from Huai'an, CN
221.231.137.254 AS137702 Nanjing, Jiangsu Province, P.R.China. 4.46ms 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
85.90.65.149 AS1126 Vancis Advanced ICT Services 0.34ms from Amsterdam, NL
4.245.12.133 AS8075 Microsoft Corporation 1.23ms from Amsterdam, NL
73.126.133.37 AS7922 Comcast Cable Communications, LLC 7.71ms from Boston, US
203.31.7.133 AS4764 Aussie Broadband 9.14ms from Brisbane, AU
72.182.83.37 AS11427 Charter Communications Inc 12.69ms from Dallas, US
84.138.32.85 AS3320 Deutsche Telekom AG 9.76ms from Frankfurt am Main, DE
42.118.125.69 AS18403 FPT Telecom Company 3.95ms from Hanoi, VN
117.3.68.101 AS7552 Viettel Group 9.35ms from Ho Chi Minh City, VN
195.211.246.197 AS50712 Kavkaz Internet Service Ltd. 8.85ms from Krasnodar, RU
203.106.182.133 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 3.26ms from Kuala Lumpur, MY
185.46.151.117 AS44600 "GIGATRANS UKRAINE", LLC 0.39ms from Kyiv, UA
37.252.24.181 AS8851 GCI Network Solutions Limited 13.49ms from London, GB
195.32.55.37 AS205005 Micso s.r.l. 3.20ms from Milan, IT
79.42.218.5 AS3269 Telecom Italia S.p.A. 5.42ms from Milan, IT
3.110.186.165 AS16509 Amazon.com, Inc. 0.13ms from Mumbai, IN
24.38.97.5 AS53482 CareMount Medical, P.C. 1.46ms from New York City, US
80.188.1.85 AS5610 O2 Czech Republic, a.s. 0.91ms from Prague, CZ
3.230.13.133 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
204.237.133.245 AS62713 PubMatic, Inc. 0.36ms from San Jose, US
204.134.212.229 AS209 CenturyLink Communications, LLC 3.99ms from Seattle, US
147.75.243.229 AS30109 Medallia Inc. 0.21ms from Seattle, US
58.122.251.213 AS9318 SK Broadband Co Ltd 7.31ms from Seoul, KR
203.9.248.229 AS17766 Nexon Asia Pacific Pty Ltd 0.24ms from Sydney, AU
47.253.72.197 AS45102 Alibaba (US) Technology Co., Ltd. 0.62ms from Ashburn, US
50.205.205.229 AS7922 Comcast Cable Communications, LLC 2.06ms from Boston, US

Traceroute

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

$
traceroute -a -n -q1 -f4 221.231.142.242
traceroute to 221.231.142.242 (221.231.142.242): 64 hops max, 52 byte packets
4 [AS4134] 218.2.56.221 3.134 ms
5 *
6 *
7 *
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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs