121.192.44.0/22

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 121.192.44.0/22

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

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
121.192.44.1	AS4538 China Education and Research Network Center	`9.86ms` 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
181.27.124.22	AS22927 Telefonica de Argentina	`2.27ms` from Buenos Aires, AR
41.87.155.166	AS36925 MEDITELECOM	`3.42ms` from Casablanca, MA
32.140.239.198	AS7018 AT&T Enterprises, LLC	`1.91ms` from Chicago, US
47.232.54.6	AS20115 Charter Communications LLC	`9.63ms` from Des Moines, US
92.204.55.38	AS8972 Host Europe GmbH	`3.01ms` from Frankfurt am Main, DE
50.208.58.198	AS7922 Comcast Cable Communications, LLC	`4.86ms` from Fremont, US
123.158.176.22	AS4837 CHINA UNICOM China169 Backbone	`8.09ms` from Hangzhou, CN
119.246.182.182	AS9269 Hong Kong Broadband Network Ltd.	`0.52ms` from Hong Kong, HK
90.241.14.134	AS5378 Vodafone Limited	`8.55ms` from Manchester, GB
83.201.217.118	AS3215 Orange S.A.	`18.11ms` from Marseille, FR
197.248.50.54	AS37061 Safaricom Limited	`1.81ms` from Mombasa, KE
73.198.173.150	AS7922 Comcast Cable Communications, LLC	`3.21ms` from New York City, US
115.137.152.150	AS17858 LG POWERCOMM	`2.98ms` from Seoul, KR
57.144.151.182	AS32934 Facebook, Inc.	`0.34ms` from Singapore, SG
114.41.147.102	AS3462 Data Communication Business Group	`1.17ms` from Taichung, TW
142.150.126.6	AS239 University of Toronto	`0.82ms` from Toronto, CA
111.47.63.38	AS9808 China Mobile Communications Group Co., Ltd.	`4.55ms` from Wuhan, CN
123.6.25.150	AS4837 CHINA UNICOM China169 Backbone	`0.94ms` from Zhengzhou, CN
4.244.147.54	AS8075 Microsoft Corporation	`0.62ms` from Az Za`ayin, QA
200.69.242.198	AS16814 NSS S.A.	`0.16ms` from Buenos Aires, AR
24.15.43.102	AS7922 Comcast Cable Communications, LLC	`4.04ms` from Chicago, US
97.229.37.166	AS6167 Verizon Business	`19.19ms` from Dallas, US
34.249.170.6	AS16509 Amazon.com, Inc.	`0.28ms` from Dublin, IE
195.222.200.22	AS20783 pop-interactive GmbH	`3.03ms` from Hamburg, DE
81.156.75.22	AS2856 British Telecommunications PLC	`1.81ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f6 121.192.44.1

traceroute to 121.192.44.1 (121.192.44.1): 64 hops max, 52 byte packets

6 [AS4538] 101.4.131.17 6.719 ms

7 [AS4538] 219.224.102.217 6.774 ms

8 *

9 *

10 *

11 *

12 [AS4538] 121.192.44.1 9.904 ms

Measurement taken from

IPinfo ProbeNet in Hangzhou, CN

On February 16th 2026

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