121.194.92.0/22

AS4538 · China Education and Research Network Center

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	121.194.0.0/15
Registry	APNIC
ID	BJR-CERNET

WHOIS Details

inetnum:        121.194.0.0 - 121.195.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing 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:  2020-09-03T09:16:22Z
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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        [email protected] 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:         [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        [email protected] was validated on 2025-08-15
abuse-mailbox:  [email protected]
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:         [email protected]
remarks:        [email protected]
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:          121.194.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 121.194.92.0/22

Range	ASN	Company	Num of IPs
121.194.0.0/15	AS4538	China Education and Research Network	131,072

Nearby Ranges

BGP prefixes that overlap with 121.194.0.0/16

Range	ASN	Company	Num of IPs
121.194.0.0/15	AS4538	China Education and Research Network	131,072

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

Read more

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
4.16.247.22	AS3356 Level 3 Parent, LLC	`0.52ms` from Ashburn, US
39.105.31.54	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.88ms` from Beijing, CN
76.141.123.214	AS7922 Comcast Cable Communications, LLC	`2.78ms` from Chicago, US
18.221.145.230	AS16509 Amazon.com, Inc.	`0.13ms` from Columbus, US
99.35.205.70	AS7018 AT&T Enterprises, LLC	`12.04ms` from Dallas, US
54.195.162.38	AS16509 Amazon.com, Inc.	`0.20ms` from Dublin, IE
77.2.93.182	AS6805 Telefonica Germany GmbH & Co.OHG	`9.22ms` from Frankfurt am Main, DE
103.92.227.22	AS136823 PT. Arka Data Primatama	`0.34ms` from Jakarta, ID
83.223.184.134	AS15457 NOS Madeira Comunicacoes, S.A.	`19.88ms` from Lisbon, PT
80.229.139.86	AS6871 Plusnet	`2.23ms` from London, GB
136.158.18.22	AS17639 Converge ICT Solutions Inc.	`0.35ms` from Manila, PH
75.72.3.134	AS7922 Comcast Cable Communications, LLC	`6.72ms` from Minneapolis, US
216.150.240.198	AS14265 TPx Communications	`3.33ms` from San Jose, US
73.193.60.118	AS7922 Comcast Cable Communications, LLC	`9.68ms` from Seattle, US
211.228.218.102	AS4766 Korea Telecom	`5.93ms` from Seoul, KR
112.178.105.214	AS4766 Korea Telecom	`5.63ms` from Seoul, KR
59.4.167.54	AS4766 Korea Telecom	`6.89ms` from Seoul, KR
39.115.49.86	AS9318 SK Broadband Co Ltd	`1.54ms` from Seoul, KR
74.226.138.246	AS8075 Microsoft Corporation	`0.16ms` from Tokyo, JP
86.89.28.246	AS1136 KPN B.V.	`1.31ms` from Amsterdam, NL
213.191.63.182	AS12512 CBXNET combox internet GmbH	`0.79ms` from Berlin, DE
34.217.172.6	AS16509 Amazon.com, Inc.	`0.20ms` from Boardman, US
54.38.41.166	AS16276 OVH SAS	`0.18ms` from Gravelines, FR
83.233.124.134	AS29518 Bredband2 AB	`8.79ms` from Hamburg, DE
73.232.115.134	AS7922 Comcast Cable Communications, LLC	`6.48ms` from Houston, US

Traceroute

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

traceroute -a -n -q1 -m15 121.194.93.75

traceroute to 121.194.93.75 (121.194.93.75): 15 hops max, 52 byte packets

1 [AS50293] 193.39.195.45 0.682 ms

2 *

3 *

4 *

5 *

6 [] 123.255.91.118 300.168 ms

7 *

8 *

9 *

10 [AS4538] 101.4.112.98 336.516 ms

11 [AS4538] 101.4.113.229 331.739 ms

12 [AS4538] 202.112.42.82 313.757 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in Lisbon, PT

On December 20th 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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales