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 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 221.231.128.0/21

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.net 2
221.231.135.166 huataisecurities.xn--ses554g 2
221.231.134.227 tiny.com.cn 1
221.231.135.164 htscamc.com 1
221.231.128.18 5ibp.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

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

IP Address ASN Details
221.231.135.235 AS137702 Nanjing, Jiangsu Province, P.R.China. 4.44ms 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
108.32.38.133 AS701 Verizon Business 6.23ms from Ashburn, US
101.98.175.197 AS9790 Two Degrees Networks Limited 1.52ms from Auckland, NZ
120.12.132.197 AS4837 CHINA UNICOM China169 Backbone 5.84ms from Beijing, CN
109.92.236.69 AS8400 TELEKOM SRBIJA a.d. 0.45ms from Belgrade, RS
85.135.178.53 AS8257 Slovanet a.s. 3.09ms from Bratislava, SK
221.211.91.213 AS4837 CHINA UNICOM China169 Backbone 9.94ms from Changchun, CN
174.22.113.37 AS209 CenturyLink Communications, LLC 19.66ms from Chicago, US
61.186.142.117 AS4134 CHINANET-BACKBONE 1.25ms from Chongqing, CN
168.210.201.37 AS20011 Dimension Data 1.46ms from Durban, ZA
3.125.127.181 AS16509 Amazon.com, Inc. 0.17ms from Frankfurt am Main, DE
14.238.108.101 AS45899 VNPT Corp 0.87ms from Ho Chi Minh City, VN
60.246.123.37 AS4609 Companhia de Telecomunicacoes de Macau SARL 3.10ms from Hong Kong, HK
115.96.254.21 AS17488 Hathway IP Over Cable Internet 1.37ms from Hyderabad, IN
80.7.79.85 AS5089 Virgin Media Limited 10.33ms from London, GB
24.43.19.245 AS20001 Charter Communications Inc 2.04ms from Los Angeles, US
201.170.253.37 AS8151 UNINET 6.22ms from Los Angeles, US
43.255.134.69 AS58659 Quest Consultancy Pvt Ltd 10.33ms from Mumbai, IN
112.2.66.181 AS56046 China Mobile communications corporation 1.44ms from Nanjing, CN
158.46.123.69 AS39927 E-Light-Telecom Ltd. 7.40ms from Novosibirsk, RU
123.129.252.117 AS4837 CHINA UNICOM China169 Backbone 5.86ms from Qingdao, CN
3.82.2.229 AS14618 Amazon.com, Inc. 0.64ms from Reston, US
97.184.69.101 AS6167 Verizon Business 17.49ms from Richardson, US
170.233.38.5 AS265181 S1 Telecomunicações e Sistemas de Informação LTDA 1.14ms from Rio de Janeiro, BR
82.51.204.69 AS3269 Telecom Italia S.p.A. 3.95ms from Rome, IT
189.153.99.165 AS8151 UNINET 10.53ms from Santiago de Queretaro, MX

Traceroute

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

$
traceroute -a -n -q1 -f4 -m12 221.231.134.208
traceroute to 221.231.134.208 (221.231.134.208): 12 hops max, 52 byte packets
4 [AS4134] 42.203.78.65 0.375 ms
6 *
7 *
8 *
9 [AS137702] 202.102.73.6 42.059 ms
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Liaoyang, 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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