All IP Ranges
121.0.0.0/8
AS4538 | 121.194.0.0/15

121.194.0.0/15

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Registry	apnic
Hosted IPs	131,072
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 2025-01-22
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-01-22T13:47:43Z
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 2025-01-22
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-22T16:25:45Z
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

Nearby Ranges

BGP prefixes that overlap with 121.0.0.0/8

Range	ASN	Company	Num of IPs
121.160.0.0/11	AS4766	Korea Telecom	2,097,152
121.128.0.0/11	AS4766	Korea Telecom	2,097,152
121.128.0.0/12	AS4766	Korea Telecom	1,048,576
121.160.0.0/12	AS4766	Korea Telecom	1,048,576
121.176.0.0/12	AS4766	Korea Telecom	1,048,576
121.224.0.0/12	AS4134	CHINANET jiangsu province network	1,048,576
121.208.0.0/12	AS1221	Telstra Limited	1,048,576
121.144.0.0/12	AS4766	Korea Telecom	1,048,576
121.152.0.0/13	AS4766	Korea Telecom	524,288
121.112.0.0/13	AS4713	NTT COMMUNICATIONS CORPORATION	524,288
121.16.0.0/13	AS4837	China Unicom Hebei province network	524,288
121.184.0.0/13	AS4766	Korea Telecom	524,288
121.8.0.0/13	AS4134	CHINANET Guangdong province network	524,288
121.160.0.0/13	AS4766	Korea Telecom	524,288
121.144.0.0/13	AS4766	Korea Telecom	524,288
121.176.0.0/13	AS4766	Korea Telecom	524,288
121.136.0.0/13	AS4766	Korea Telecom	524,288
121.128.0.0/13	AS4766	Korea Telecom	524,288
121.168.0.0/13	AS4766	Korea Telecom	524,288
121.32.0.0/14	AS4134	CHINANET Guangdong province network	262,144
121.204.0.0/14	AS4134	CHINANET Fujian province network	262,144
121.192.0.0/14	AS4538	China Education and Research Network	262,144
121.40.0.0/14	AS37963	Aliyun Computing Co., LTD	262,144
121.80.0.0/14	AS17511	OPTAGE Inc.	262,144
121.24.0.0/14	AS4837	China Unicom Hebei province network	262,144
121.64.0.0/14	AS3786	LG DACOM Corporation	262,144
121.196.0.0/14	AS37963	Aliyun Computing Co., LTD	262,144
121.248.0.0/14	AS4538	China Education and Research Network	262,144
121.84.0.0/14	AS17511	OPTAGE Inc.	262,144
121.60.0.0/14	AS4134	CHINANET Hubei province network	262,144
121.250.0.0/15	AS4538	China Education and Research Network	131,072
121.42.0.0/15	AS37963	Aliyun Computing Co., LTD	131,072
121.72.0.0/15	AS4768	One New Zealand Group Limited	131,072
121.122.0.0/15	AS9534	Maxis Broadband Sdn Bhd	131,072
121.120.0.0/15	AS9534	Maxis Broadband Sdn Bhd	131,072
121.2.0.0/15	AS2527	Sony Network Communications Inc.	131,072
121.56.0.0/15	AS4134	CHINANET neimeng province network	131,072
121.76.0.0/15	AS4837	Oriental Cable Network Co., Ltd.	131,072
121.246.0.0/15	AS17908	Internet Service Provider	131,072
121.98.0.0/15	AS9790	Two Degrees Mobile Limited	131,072
121.96.0.0/15	AS6648	Bayan Telecommunications Incorporated	131,072
121.40.0.0/15	AS37963	Aliyun Computing Co., LTD	131,072
121.4.0.0/15	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	131,072
121.48.0.0/15	AS4538	China Education and Research Network	131,072
121.202.0.0/15	AS17924	SmarTone Mobile Communications Ltd	131,072
121.124.0.0/15	AS9318	SK Broadband Co Ltd	131,072
121.192.0.0/15	AS4538	China Education and Research Network	131,072
121.44.0.0/15	AS4739	iiNet Limited	131,072
121.28.0.0/15	AS4837	China Unicom Hebei province network	131,072

Show more ranges

Hosted domains

There are 153 domain names hosted across 65 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
121.194.4.35	cbipress.com	9
121.194.14.158	seu.edu.cn	7
121.194.10.142	91kx.com	6
121.194.2.250	tsade.cn	5
121.194.10.141	91kx.com	5
121.194.14.84	xacom.edu.cn	4
121.194.10.213	zxx.edu.cn	2
121.194.14.142	xn--4gq2mp4jz7au3muudm4gee053gp06acca.com	2
121.194.3.226	zjzry.cn	1
121.194.3.137	voice.edu.cn	1
121.194.4.110	zhnydk.com	1
121.194.9.33	wutaotao.top	1
121.194.9.71	ykt.io	1
121.194.4.142	cusjs.com	1
121.194.4.173	cpa-online.org.cn	1
121.194.4.196	hbyjqk.com	1
121.194.88.19	crystalstar.cn	1
121.194.4.193	sfe.org.cn	1
121.194.59.245	tritium.top	1
121.194.4.73	cmhj.cn	1

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