211.66.96.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	211.66.0.0/16
Registry	APNIC
ID	CERNET-CN

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
162.241.36.164	AS19871 Network Solutions, LLC	0.36ms from Atlanta, US
122.175.247.164	AS24560 Bharti Airtel Ltd., Telemedia Services	16.83ms from Mumbai, IN
122.197.201.148	AS9617 JCOM Co., Ltd.	12.77ms from Osaka, JP
13.75.170.20	AS8075 Microsoft Corporation	0.69ms from Sydney, AU
197.37.180.84	AS8452 TE-AS	3.32ms from Cairo, EG
58.20.169.36	AS4837 CHINA UNICOM China169 Backbone	4.48ms from Changsha, CN
75.247.210.196	AS6167 Verizon Business	16.59ms from Chicago, US
177.82.5.84	AS28573 Claro NXT Telecomunicacoes Ltda	11.55ms from Curitiba, BR
27.213.111.132	AS4837 CHINA UNICOM China169 Backbone	8.13ms from Qingdao, CN
104.179.43.132	AS7018 AT&T Enterprises, LLC	12.60ms from San Antonio, US
145.219.15.4	AS201017 Achmea Interne Diensten N.V.	3.77ms from Amsterdam, NL
34.70.76.228	AS396982 Google LLC	0.13ms from Council Bluffs, US
54.229.137.68	AS16509 Amazon.com, Inc.	0.24ms from Dublin, IE
87.154.8.164	AS3320 Deutsche Telekom AG	5.09ms from Duesseldorf, DE
64.238.207.164	AS7381 BroadbandONE, LLC	0.55ms from Philadelphia, US
20.14.120.4	AS8075 Microsoft Corporation	0.61ms from Phoenix, US
104.16.209.4	AS13335 Cloudflare, Inc.	0.11ms from Porto Alegre, BR
182.216.52.148	AS17858 LG POWERCOMM	2.34ms from Seoul, KR
218.145.182.148	AS4766 Korea Telecom	1.74ms from Seoul, KR
49.243.209.212	AS10013 FreeBit Co.,Ltd.	7.46ms from Tokyo, JP
188.42.247.196	AS7979 Servers.com, Inc.	0.13ms from Amsterdam, NL
139.219.66.244	AS58593 Shanghai Blue Cloud Technology Co.,Ltd	4.77ms from Beijing, CN
123.157.179.4	AS4837 CHINA UNICOM China169 Backbone	9.37ms from Hangzhou, CN
198.105.87.228	AS23089 Hotwire Communications	3.41ms from Miami, US
64.228.72.84	AS577 Bell Canada	5.49ms from Montreal, CA

WHOIS Details

inetnum:        211.64.0.0 - 211.69.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Room 224, Tsinghua University
descr:          Beijing, China
country:        CN
admin-c:        JW725-AP
tech-c:         XL364-AP
tech-c:         LZ530-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:04Z
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

person:         Jianping Wu
address:        China Education and Research Network Center
address:        Room 225, Main Building, Tsinghua University
address:        Beijing 100084
address:        CN
country:        CN
phone:          +86-10-6278-5983
fax-no:         +86-10-6278-5933
e-mail:         [email protected]
nic-hdl:        JW725-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:23:32Z
source:         APNIC

person:         Ling Zhang
address:        Network Center
address:        South China University of Technology
address:        Guangzhou, Guangdong 510641, China
address:        CN
country:        CN
phone:          +86-20-87110596
fax-no:         +86-20-87110019
e-mail:         [email protected]
nic-hdl:        LZ530-AP
notify:         [email protected]
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:23:32Z
source:         APNIC

person:         Xing Li
address:        China Education and Research Network Center
address:        Room 225, Main Building, Tsinghua University
address:        Beijing 100084
address:        CN
country:        CN
phone:          +86-10-6278-5983
fax-no:         +86-10-6278-5933
e-mail:         [email protected]
nic-hdl:        XL364-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:23:32Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 211.66.96.0/20

Range	ASN	Company	Num of IPs
211.66.0.0/16	AS24357	China Education and Research Network	65,536
211.66.0.0/16	AS4538	China Education and Research Network	65,536
211.64.0.0/13	AS4538	China Education and Research Network	524,288

Nearby Ranges

BGP prefixes that overlap with 211.66.0.0/16

Range	ASN	Company	Num of IPs
211.64.0.0/13	AS4538	China Education and Research Network	524,288
211.66.0.0/16	AS24357	China Education and Research Network	65,536
211.66.0.0/16	AS4538	China Education and Research Network	65,536
211.66.128.0/20	AS4538	China Education and Research Network	4,096
211.66.16.0/20	AS4538	China Education and Research Network	4,096
211.66.160.0/20	AS4538	China Education and Research Network	4,096
211.66.0.0/20	AS4538	China Education and Research Network	4,096
211.66.112.0/20	AS4538	China Education and Research Network	4,096
211.66.192.0/21	AS4538	China Education and Research Network	2,048
211.66.248.0/21	AS4538	China Education and Research Network	2,048
211.66.152.0/21	AS4538	China Education and Research Network	2,048
211.66.240.0/21	AS4538	China Education and Research Network	2,048
211.66.208.0/22	AS4538	China Education and Research Network	1,024
211.66.72.0/23	AS4538	China Education and Research Network	512
211.66.206.0/23	AS4538	China Education and Research Network	512
211.66.86.0/23	AS4538	China Education and Research Network	512
211.66.186.0/24	AS4538	China Education and Research Network	256
211.66.188.0/24	AS4538	China Education and Research Network	256
211.66.82.0/24	AS4538	China Education and Research Network	256

Hosted domains

There are no domains currently hosted on this ASN.

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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.

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