121.49.152.0/24

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 121.48.0.0/15
Registry APNIC
ID CDR-CERNET

WHOIS Details

inetnum:        121.48.0.0 - 121.49.255.255
netname:        CDR-CERNET
descr:          China Education and Research Network
descr:          Chengdu Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:00Z
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:          121.49.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 121.49.152.0/24

Range ASN Company Num of IPs
121.48.0.0/15 AS4538 China Education and Research Network 131,072

Nearby Ranges

BGP prefixes that overlap with 121.49.0.0/16

Range ASN Company Num of IPs
121.48.0.0/15 AS4538 China Education and Research Network 131,072
121.49.64.0/18 AS4538 China Education and Research Network 16,384
121.49.160.0/19 AS4538 China Education and Research Network 8,192
121.49.16.0/20 AS4538 China Education and Research Network 4,096
121.49.32.0/21 AS4538 China Education and Research Network 2,048
121.49.200.0/21 AS4538 China Education and Research Network 2,048
121.49.0.0/22 AS4538 China Education and Research Network 1,024
121.49.5.0/24 AS4538 China Education and Research Network 256
121.49.198.0/24 AS4538 China Education and Research Network 256
121.49.197.0/24 AS4538 China Education and Research Network 256
121.49.0.0/24 AS4538 China Education and Research Network 256
121.49.4.0/24 AS4538 China Education and Research Network 256
121.49.199.0/24 AS4538 China Education and Research Network 256
121.49.128.0/24 AS4538 China Education and Research Network 256
121.49.195.0/24 AS4538 China Education and Research Network 256
121.49.193.0/24 AS4538 China Education and Research Network 256
121.49.153.0/24 AS4538 China Education and Research Network 256
121.49.192.0/24 AS4538 China Education and Research Network 256
121.49.196.0/24 AS4538 China Education and Research Network 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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
69.61.108.88 AS22653 Cyber Wurx LLC 0.39ms from Atlanta, US
103.142.171.200 AS139622 QUE TEL BD 0.48ms from Dhaka, BD
14.239.153.40 AS45899 VNPT Corp 2.21ms from Hanoi, VN
180.150.93.248 AS4764 Aussie Broadband 0.84ms from Perth, AU
38.165.100.88 AS398823 PEG TECH INC 0.42ms from San Jose, US
20.254.128.104 AS8075 Microsoft Corporation 0.23ms from Cardiff, GB
115.231.135.120 AS136190 JINHUA, ZHEJIANG Province, P.R.China. 14.95ms from Hangzhou, CN
178.212.98.168 AS48957 Joint Ukrainian American Enterprise "Telecommunications Resource Center" ltd 3.74ms from Khmelnytskyi, UA
50.53.35.168 AS20055 Wholesail networks LLC 1.54ms from Portland, US
71.236.251.248 AS7922 Comcast Cable Communications, LLC 5.85ms from Portland, US
128.32.166.40 AS25 University of California at Berkeley 2.21ms from San Jose, US
139.211.203.248 AS4837 CHINA UNICOM China169 Backbone 16.79ms from Dalian, CN
27.109.215.40 AS4609 Companhia de Telecomunicacoes de Macau SARL 3.10ms from Hong Kong, HK
67.63.238.168 AS22561 CenturyLink Communications, LLC 6.52ms from Minneapolis, US
59.86.162.24 AS38333 Symbio Networks 0.89ms from Sydney, AU
46.117.248.200 AS1680 Cellcom Fixed Line Communication L.P 4.95ms from Tel Aviv, IL
59.168.146.168 AS9824 JCOM Co., Ltd. 11.14ms from Tokyo, JP
165.1.27.248 AS7297 The Associated Press 0.79ms from Ashburn, US
172.177.126.56 AS8075 Microsoft Corporation 0.38ms from Boydton, US
52.215.69.200 AS16509 Amazon.com, Inc. 0.12ms from Dublin, IE
79.155.59.88 AS3352 TELEFONICA DE ESPANA S.A.U. 8.90ms from Madrid, ES
124.194.252.56 AS3786 LG DACOM Corporation 2.33ms from Seoul, KR
176.23.179.168 AS3292 TDC Holding A/S 2.81ms from Skanderborg, DK
187.115.67.152 AS18881 TELEFÔNICA BRASIL S.A 3.51ms from Brasilia, BR
61.242.247.216 AS4837 CHINA UNICOM China169 Backbone 6.77ms from Chongqing, CN

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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