121.192.40.0/22

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 121.192.0.0/16
Registry APNIC
ID SHR-CERNET

WHOIS Details

inetnum:        121.192.0.0 - 121.192.255.255
netname:        SHR-CERNET
descr:          China Education and Research Network
descr:          Shanghai Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:25Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
fax-no:         +86-10-62785933
e-mail:         abuse@cernet.edu.cn
abuse-mailbox:  abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        abuse@cernet.edu.cn was validated on 2025-08-15
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-11-18T00:26:28Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
e-mail:         abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        abuse@cernet.edu.cn was validated on 2025-08-15
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-15T09:38:28Z
source:         APNIC

role:           CERNET Helpdesk
address:        CERNET Center
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-4049
fax-no:         +86-10-6278-5933
e-mail:         helpdesk@cernet.edu.cn
remarks:        abuse@cernet.edu.cn
admin-c:        XL1-CN
tech-c:         SZ2-AP
nic-hdl:        CER-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2020-09-03T09:14:12Z
source:         APNIC

route:          121.192.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 121.192.40.0/22

Range ASN Company Num of IPs
121.192.0.0/16 AS4538 China Education and Research Network 65,536

Nearby Ranges

BGP prefixes that overlap with 121.192.0.0/16

Range ASN Company Num of IPs
121.192.0.0/16 AS4538 China Education and Research Network 65,536

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address ASN Details
121.192.40.100 AS4538 China Education and Research Network Center 12.16ms from Hangzhou, 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
156.234.20.70 AS138415 Yancy Limited 0.66ms from Hong Kong, HK
168.4.163.150 AS8 Rice University 3.62ms from Houston, US
182.228.159.86 AS17858 LG POWERCOMM 2.12ms from Incheon, KR
174.116.111.134 AS812 Rogers Communications Canada Inc. 6.38ms from Ottawa, CA
152.92.0.166 AS2715 Fundação Carlos Chagas Filho de Amparo a Pesquisa 1.10ms from Rio de Janeiro, BR
189.247.98.6 AS8151 UNINET 6.47ms from Santiago de Queretaro, MX
45.2.2.6 AS7311 Frontier Networks Inc 0.32ms from Toronto, CA
180.78.100.22 AS17429 BEIJING GEHUA CATV NETWORK CO.LTD 7.43ms from Beijing, CN
73.61.241.150 AS7922 Comcast Cable Communications, LLC 10.63ms from Boston, US
99.64.107.230 AS7018 AT&T Enterprises, LLC 2.38ms from Chicago, US
78.153.181.118 AS31027 GlobalConnect A/S 0.60ms from Copenhagen, DK
50.217.211.182 AS7922 Comcast Cable Communications, LLC 1.46ms from Denver, US
116.22.146.86 AS4134 CHINANET-BACKBONE 3.37ms from Guangzhou, CN
85.97.140.118 AS9121 Turk Telekomunikasyon Anonim Sirketi 1.40ms from Istanbul, TR
213.200.125.102 AS3257 GTT Communications Inc. 0.36ms from Miami, US
179.235.248.198 AS28573 Claro NXT Telecomunicacoes Ltda 3.90ms from Novo Hamburgo, BR
60.215.129.86 AS4837 CHINA UNICOM China169 Backbone 5.38ms from Qingdao, CN
201.68.154.22 AS27699 TELEFÔNICA BRASIL S.A 3.66ms from Sao Paulo, BR
1.96.107.246 AS4766 Korea Telecom 1.61ms from Seoul, KR
47.84.125.134 AS45102 Alibaba (US) Technology Co., Ltd. 0.85ms from Singapore, SG
178.29.83.70 AS8434 Telenor Sverige AB 17.05ms from Stockholm, SE
222.230.160.118 AS2519 ARTERIA Networks Corporation 2.00ms from Tokyo, JP
77.175.202.166 AS1136 KPN B.V. 1.81ms from Amsterdam, NL
84.69.149.38 AS5378 Vodafone Limited 2.71ms from Edinburgh, GB
41.15.146.38 AS29975 Vodacom 14.34ms from Johannesburg, ZA

Traceroute

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

$
traceroute -a -n -q1 -f3 121.192.40.254
traceroute to 121.192.40.254 (121.192.40.254): 64 hops max, 52 byte packets
3 [AS749] 11.94.147.65 2.807 ms
4 *
5 *
6 [AS4538] 101.4.131.17 6.403 ms
8 *
9 *
10 *
11 *
12 [AS4538] 121.192.40.254 12.61 ms
Measurement taken from IPinfo ProbeNet in Hangzhou, CN
On

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