121.192.192.0/18

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 Center,
address:        FIT-3-220, 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:        abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by:         MAINT-CERNET-AP
last-modified:  2026-03-05T06:39:56Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Center,
address:        FIT-3-220, 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 2026-03-05
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-05T06:40:20Z
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 121.192.192.0/18

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

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
173.188.180.2	AS7029 Windstream Communications LLC	`5.86ms` from Atlanta, US
196.206.119.2	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`16.10ms` from Casablanca, MA
192.80.144.2	AS46293 Midwest Energy & Communications	`4.57ms` from Chicago, US
66.197.228.2	AS2906 Netflix Streaming Services Inc.	`0.59ms` from Denver, US
79.203.5.66	AS3320 Deutsche Telekom AG	`9.43ms` from Frankfurt am Main, DE
62.90.154.162	AS1680 Cellcom Fixed Line Communication L.P	`0.11ms` from Haifa, IL
91.157.193.2	AS719 Elisa Oyj	`4.02ms` from Helsinki, FI
112.146.229.146	AS17858 LG POWERCOMM	`3.88ms` from Incheon, KR
82.144.220.2	AS35680 Volia-Cable LLC	`0.45ms` from Kyiv, UA
176.103.58.146	AS48031 Ivanov Vitaliy Sergeevich	`0.12ms` from Kyiv, UA
80.168.69.226	AS8426 ClaraNET LTD	`0.52ms` from London, GB
70.95.94.114	AS20001 Charter Communications Inc	`8.31ms` from Los Angeles, US
12.219.63.114	AS7018 AT&T Enterprises, LLC	`9.45ms` from Miami, US
151.78.14.210	AS1267 WIND TRE S.P.A.	`1.05ms` from Milan, IT
188.14.43.98	AS3269 Telecom Italia S.p.A.	`19.59ms` from Milan, IT
195.62.58.18	AS44849 S.D.N. Seti Ltd.	`0.90ms` from Moscow, RU
71.224.89.34	AS7922 Comcast Cable Communications, LLC	`8.19ms` from New York City, US
180.197.217.194	AS18126 Chubu Telecommunications Company, Inc.	`5.51ms` from Osaka, JP
86.61.144.82	AS15425 PODA a.s.	`4.00ms` from Prague, CZ
181.37.55.210	AS28118 ALTICE DOMINICANA S.A.	`9.15ms` from Santo Domingo, DO
124.220.127.2	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.51ms` from Shanghai, CN
16.176.99.82	AS16509 Amazon.com, Inc.	`0.09ms` from Sydney, AU
207.239.150.2	AS2828 Verizon Business	`3.97ms` from Ashburn, US
107.175.134.2	AS36352 HostPapa	`0.40ms` from Ashburn, US
122.57.75.114	AS4771 Spark New Zealand Trading Ltd.	`1.73ms` from Auckland, NZ

Traceroute

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

traceroute -a -n -q1 -m12 121.192.206.169

traceroute to 121.192.206.169 (121.192.206.169): 12 hops max, 52 byte packets

1 [AS7806] 204.27.195.252 153.014 ms

2 [AS7806] 216.229.23.44 3.477 ms

3 *

4 [AS6939] 184.104.199.41 14.01 ms

5 *

6 *

7 *

8 [] 123.255.91.118 177.375 ms

9 [AS4538] 101.4.114.181 199.346 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Lincoln, US

On April 24th 2026

What are IP address ranges?

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