121.237.152.0/21

AS140292 · CHINATELECOM Jiangsu province Suzhou 5G network

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Summary

Country	China
Domain	chinatelecom.cn
ASN	AS140292
Parent Range	121.224.0.0/12
Registry	APNIC
ID	CHINANET-JS

WHOIS Details

inetnum:        121.224.0.0 - 121.239.255.255
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
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CHINANET-JS
mnt-routes:     MAINT-CHINANET-JS
mnt-irt:        IRT-CHINANET-CN
last-modified:  2021-06-15T08:05:09Z
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 121.237.152.0/21

Range	ASN	Company	Num of IPs
121.224.0.0/12	AS134756	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS134770	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS137697	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS137699	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS137702	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS140292	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS146966	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS4134	CHINANET jiangsu province network	1,048,576

Nearby Ranges

BGP prefixes that overlap with 121.237.0.0/16

Range	ASN	Company	Num of IPs
121.224.0.0/12	AS134756	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS134770	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS137697	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS137699	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS137702	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS140292	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS146966	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS4134	CHINANET jiangsu province network	1,048,576

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
121.237.159.196	shuorenyishu.cn	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
46.33.37.5	AS31593 TV Company "Black Sea" Ltd	`8.50ms` from Kyiv, UA
45.92.195.149	AS25693 Virtual Machine Solutions LLC	`0.95ms` from Los Angeles, US
162.125.12.37	AS19679 Dropbox, Inc.	`0.34ms` from Miami, US
87.245.156.53	AS8732 JSC Comcor	`1.20ms` from Moscow, RU
45.6.102.53	AS266181 GOLDEN LINK	`1.32ms` from Rio de Janeiro, BR
172.3.141.245	AS7018 AT&T Enterprises, LLC	`2.97ms` from San Jose, US
148.245.77.101	AS6503 Axtel, S.A.B. de C.V.	`4.68ms` from Santiago de Querétaro, MX
92.42.108.69	AS29066 velia.net Internetdienste GmbH	`0.11ms` from Strasbourg, FR
118.210.117.101	AS7545 TPG Telecom Limited	`1.11ms` from Sydney, AU
36.236.186.213	AS3462 Data Communication Business Group	`4.20ms` from Taichung, TW
27.88.47.69	AS2516 KDDI CORPORATION	`2.22ms` from Tokyo, JP
24.237.230.5	AS8047 GENERAL COMMUNICATION, INC.	`3.42ms` from Anchorage, US
170.191.0.5	AS393456 United States Steel Corporation	`6.06ms` from Ashburn, US
161.65.244.21	AS9790 Two Degrees Networks Limited	`6.31ms` from Christchurch, NZ
34.70.239.53	AS396982 Google LLC	`0.10ms` from Council Bluffs, US
177.220.152.37	AS14868 Ligga Telecomunicações S.A.	`0.23ms` from Curitiba, BR
12.124.199.101	AS7018 AT&T Enterprises, LLC	`1.09ms` from Durham, US
93.208.84.21	AS3320 Deutsche Telekom AG	`5.76ms` from Frankfurt am Main, DE
74.15.222.245	AS577 Bell Canada	`1.98ms` from Montreal, CA
182.40.192.197	AS136195 Qingdao, Shandong Province, P.R.China.	`1.40ms` from Qingdao, CN
189.188.76.53	AS8151 UNINET	`4.15ms` from Santiago de Queretaro, MX
8.242.182.69	AS3549 Level 3 Parent, LLC	`0.95ms` from Sao Paulo, BR
23.44.213.21	AS20940 Akamai International B.V.	`0.19ms` from Singapore, SG
13.62.105.181	AS16509 Amazon.com, Inc.	`1.06ms` from Stockholm, SE
126.41.148.21	AS17676 SoftBank Corp.	`4.32ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -m12 121.237.152.106

traceroute to 121.237.152.106 (121.237.152.106): 12 hops max, 52 byte packets

1 [AS15169] 108.170.234.152 10.728 ms

2 *

3 [] 140.222.223.15 54.204 ms

4 [AS701] 157.130.246.110 57.338 ms

5 *

6 *

7 *

8 *

9 [AS140292] 61.155.187.38 198.035 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Council Bluffs, US

On December 14th 2025

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.

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