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 [email protected] 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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CH93-AP
tech-c:         CH93-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
admin-c:        CH93-AP
tech-c:         CH93-AP
nic-hdl:        AC1573-AP
remarks:        Generated from irt object IRT-CHINANET-CN
remarks:        [email protected] was validated on 2025-11-13
abuse-mailbox:  [email protected]
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:         [email protected]
remarks:        send anti-spam reports [email protected]
remarks:        send abuse reports [email protected]
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:         [email protected]
mnt-by:         MAINT-CHINANET-JS
last-modified:  2022-08-05T15:34:47Z
source:         APNIC

person:         Chinanet Hostmaster
nic-hdl:        CH93-AP
e-mail:         [email protected]
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 6 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.net 2
221.231.134.227 tiny.com.cn 1
221.231.135.164 htscamc.com 1
221.231.128.18 5ibp.cn 1
221.231.135.166 huataisecurities.xn--ses554g 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

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

IP Address ASN Details
221.231.135.246 AS137702 Nanjing, Jiangsu Province, P.R.China. 4.37ms 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
41.66.254.85 AS29614 Ghana Telecommunications Company Limited 0.38ms from Accra, GH
69.243.90.149 AS7922 Comcast Cable Communications, LLC 8.20ms from Ashburn, US
43.140.199.69 AS45090 Shenzhen Tencent Computer Systems Company Limited 2.04ms from Beijing, CN
86.40.173.37 AS5466 Eircom Limited 2.55ms from Dublin, IE
72.234.5.85 AS36149 Hawaiian Telcom Services Company, Inc. 1.24ms from Honolulu, US
218.3.221.69 AS4134 CHINANET-BACKBONE 8.37ms from Huai'an, CN
4.234.8.5 AS8075 Microsoft Corporation 0.72ms from London, GB
87.13.221.5 AS3269 Telecom Italia S.p.A. 10.01ms from Milan, IT
217.221.105.133 AS8968 BT Italia S.p.A. 5.56ms from Milan, IT
162.118.16.5 AS30011 Messer North America, Inc. 3.93ms from Piscataway, US
136.142.34.149 AS4130 University of Pittsburgh 2.03ms from Pittsburgh, US
200.19.109.53 AS10715 Universidade Federal de Santa Catarina 11.83ms from Sao Paulo, BR
119.217.220.5 AS4766 Korea Telecom 6.15ms from Seoul, KR
27.127.228.69 AS9652 ECN Internet 10.90ms from Sydney, AU
130.153.4.229 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.05ms from Tokyo, JP
172.207.114.53 AS8075 Microsoft Corporation 0.18ms from Tokyo, JP
121.45.94.21 AS7545 TPG Telecom Limited 12.36ms from Adelaide, AU
118.174.45.69 AS131293 TOT Public Company Limited 2.36ms from Bangkok, TH
86.123.175.37 AS8708 DIGI ROMANIA S.A. 2.45ms from Bucharest, RO
27.12.176.21 AS4837 CHINA UNICOM China169 Backbone 6.03ms from Chongqing, CN
194.144.153.85 AS12969 Vodafone Iceland 0.84ms from Hafnarfjoerdur, IS
101.78.217.165 AS9381 HKBN Enterprise Solutions HK Limited 0.70ms from Hong Kong, HK
58.56.30.117 AS4134 CHINANET-BACKBONE 3.74ms from Jinan, CN
207.181.2.101 AS23316 Bel Air Internet, LLC 0.24ms from Los Angeles, US
195.184.197.165 AS41039 Timer, LLC 16.68ms from Moscow, RU

Traceroute

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

$
traceroute -a -n -q1 -f3 -m12 221.231.130.151
traceroute to 221.231.130.151 (221.231.130.151): 12 hops max, 52 byte packets
3 [AS16509] 99.82.12.184 2.234 ms
4 [AS16509] 99.82.12.185 1.611 ms
5 *
6 *
7 *
8 *
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Tokyo, JP
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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