121.194.4.0/24

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 121.194.0.0/20
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:         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 2025-01-22
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:         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 2025-01-22
abuse-mailbox:  abuse@cernet.edu.cn
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:         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:          121.195.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 121.194.4.0/24

Range ASN Company Num of IPs
121.194.0.0/20 AS4538 China Education and Research Network 4,096
121.194.0.0/15 AS4538 China Education and Research Network 131,072
121.192.0.0/14 AS4538 China Education and Research Network 262,144

Nearby Ranges

BGP prefixes that overlap with 121.194.0.0/16

Range ASN Company Num of IPs
121.192.0.0/14 AS4538 China Education and Research Network 262,144
121.194.0.0/15 AS4538 China Education and Research Network 131,072
121.194.224.0/19 AS4538 China Education and Research Network 8,192
121.194.192.0/19 AS4538 China Education and Research Network 8,192
121.194.0.0/20 AS4538 China Education and Research Network 4,096
121.194.16.0/20 AS4538 China Education and Research Network 4,096
121.194.64.0/20 AS4538 China Education and Research Network 4,096
121.194.96.0/20 AS4538 China Education and Research Network 4,096
121.194.32.0/20 AS4538 China Education and Research Network 4,096
121.194.112.0/20 AS4538 China Education and Research Network 4,096
121.194.176.0/20 AS4538 China Education and Research Network 4,096
121.194.144.0/20 AS4538 China Education and Research Network 4,096
121.194.48.0/20 AS4538 China Education and Research Network 4,096
121.194.80.0/21 AS4538 China Education and Research Network 2,048
121.194.92.0/22 AS4538 China Education and Research Network 1,024
121.194.88.0/22 AS4538 China Education and Research Network 1,024
121.194.172.0/22 AS4538 China Education and Research Network 1,024
121.194.174.0/23 AS4538 China Education and Research Network 512
121.194.172.0/23 AS4538 China Education and Research Network 512
121.194.167.0/24 AS4538 China Education and Research Network 256

Hosted domains

There are 55 domain names hosted across 38 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
121.194.4.95 xn--j7qw85d1ok64r.org 3
121.194.4.83 gjxkzzs.com 2
121.194.4.40 bigtextilepub.com 1
121.194.4.73 cmhj.cn 1
121.194.4.41 jxsyhg.com 1
121.194.4.201 syzlzz.com 1
121.194.4.196 hbyjqk.com 1
121.194.4.193 sfe.org.cn 1
121.194.4.163 zghjgx.com 1
121.194.4.43 lilunjie.net 1
121.194.4.173 cpa-online.org.cn 1
121.194.4.110 zhnydk.com 1
121.194.4.142 cusjs.com 1

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

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

IP Address ASN Details
121.194.4.55 AS4538 China Education and Research Network Center 3.13ms from Beijing, 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
212.234.50.152 AS3215 Orange S.A. 6.07ms from Frankfurt am Main, DE
81.40.164.248 AS3352 TELEFONICA DE ESPANA S.A.U. 8.56ms from Madrid, ES
1.106.172.104 AS4766 Korea Telecom 3.24ms from Seoul, KR
126.73.136.8 AS17676 SoftBank Corp. 4.93ms from Tokyo, JP
23.7.13.120 AS16625 Akamai Technologies, Inc. 0.70ms from Bogota, CO
103.89.243.8 AS150913 PT Alam Daur Nusantara 18.17ms from Jakarta, ID
175.123.173.152 AS9318 SK Broadband Co Ltd 1.33ms from Seoul, KR
192.238.176.72 AS138995 Antbox Networks Limited 0.56ms from Hong Kong, HK
3.109.12.24 AS16509 Amazon.com, Inc. 0.15ms from Mumbai, IN
93.207.199.184 AS3320 Deutsche Telekom AG 6.55ms from Frankfurt am Main, DE
171.224.16.72 AS7552 Viettel Group 1.35ms from Hanoi, VN
128.116.204.120 AS35612 EOLO S.p.A. 4.30ms from Milan, IT
146.12.32.8 AS3737 PenTeleData Inc. 10.49ms from Newark, US
98.173.129.248 AS22773 Cox Communications Inc. 0.75ms from Phoenix, US
3.114.21.40 AS16509 Amazon.com, Inc. 0.16ms from Tokyo, JP
20.67.11.120 AS8075 Microsoft Corporation 0.24ms from Amsterdam, NL
177.222.241.248 AS28198 SEMPRE TELECOMUNICACOES LTDA 7.73ms from Belo Horizonte, BR
154.180.196.248 AS8452 TE-AS 6.60ms from Cairo, EG
82.22.252.152 AS28753 Leaseweb Deutschland GmbH 0.57ms from Frankfurt am Main, DE
89.143.173.8 AS5603 Telekom Slovenije, d.d. 0.75ms from Ljubljana, SI
159.27.239.168 AS58593 Shanghai Blue Cloud Technology Co.,Ltd 7.09ms from Beijing, CN
149.75.186.168 AS6079 RCN 5.90ms from Chicago, US
62.204.122.200 AS15600 Quickline AG 4.42ms from Zuerich, CH
112.213.42.56 AS18159 Netspeed Data Ltd 16.54ms from Auckland, NZ
125.237.211.120 AS4771 Spark New Zealand Trading Ltd. 2.25ms from Auckland, NZ

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.

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