121.49.153.0/24

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:          121.48.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 121.49.153.0/24

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
121.49.152.0/24 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
121.49.192.0/24 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

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

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

IP Address ASN Details
121.49.153.255 AS4538 China Education and Research Network Center 17.35ms from Chengdu, 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
198.161.170.8 AS27208 Discovery Energy, LLC 0.84ms from Chicago, US
67.98.107.200 AS3356 Level 3 Parent, LLC 1.00ms from Chicago, US
38.148.39.72 AS33727 Sumofiber 14.99ms from Denver, US
3.73.30.136 AS16509 Amazon.com, Inc. 0.13ms from Frankfurt am Main, DE
27.46.55.24 AS17623 China Unicom Shenzen network 5.42ms from Guangzhou, CN
185.27.192.8 AS60651 Stek Kazan LLC 0.74ms from Kazan, RU
18.133.68.8 AS16509 Amazon.com, Inc. 0.15ms from London, GB
84.45.227.216 AS8468 ENTANET International Limited 14.90ms from London, GB
27.211.119.200 AS4837 CHINA UNICOM China169 Backbone 6.12ms from Qingdao, CN
193.25.205.24 AS42333 Geidea Technology Co ltd 4.12ms from Riyadh, SA
186.105.39.152 AS7418 TELEFÓNICA CHILE S.A. 1.41ms from Santiago, CL
203.40.28.136 AS1221 Telstra Limited 13.16ms from Sydney, AU
120.102.128.232 AS1659 Taiwan Academic Network (TANet) Information Center 3.32ms from Taipei, TW
128.143.71.120 AS225 University of Virginia 2.90ms from Ashburn, US
177.223.46.56 AS266539 LINQ TELECOMUNICACOES 7.36ms from Brasilia, BR
64.47.162.104 AS19855 Masergy Communications, Inc. 0.42ms from Chicago, US
14.236.140.232 AS45899 VNPT Corp 8.68ms from Da Nang, VN
99.100.178.40 AS7018 AT&T Enterprises, LLC 3.81ms from Fremont, US
84.158.167.8 AS3320 Deutsche Telekom AG 0.72ms from Hamburg, DE
14.189.219.200 AS45899 VNPT Corp 4.81ms from Hanoi, VN
119.118.84.136 AS4837 CHINA UNICOM China169 Backbone 8.81ms from Liaoyang, CN
170.250.128.104 AS23089 Hotwire Communications 2.09ms from Miami, US
188.255.59.200 AS42610 PJSC Rostelecom 1.04ms from Moscow, RU
75.97.138.72 AS3737 PenTeleData Inc. 12.52ms from New York City, US
183.189.221.184 AS4837 CHINA UNICOM China169 Backbone 9.84ms from Taiyuan, 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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