211.85.16.0/21

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Registry APNIC
ID CERNET-CN

WHOIS Details

inetnum:        211.84.0.0 - 211.85.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Wuhan Regional Network
country:        CN
admin-c:        JW1-CN
tech-c:         XL1-CN
tech-c:         SZ2-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:30Z
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 2025-08-15
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-11-18T00:26:28Z
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 2025-08-15
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-15T09:38:28Z
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:         jianping@cernet.edu.cn
nic-hdl:        JW1-CN
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:25Z
source:         APNIC

person:         Shuang Zhu
address:        China Education and Research Network Information Center
address:        Room 225, Main Building, Tsinghua University
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-5931
fax-no:         +86-10-6278-5933
e-mail:         szhu@cernet.edu.cn
nic-hdl:        SZ2-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:36Z
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:         xing@cernet.edu.cn
nic-hdl:        XL1-CN
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:25Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 211.85.0.0/16

No nearby ranges found.

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

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
86.93.85.69 AS1136 KPN B.V. 2.77ms from Amsterdam, NL
186.39.153.5 AS22927 Telefonica de Argentina 2.34ms from Buenos Aires, AR
41.34.51.117 AS8452 TE-AS 2.65ms from Cairo, EG
69.133.207.69 AS10796 Charter Communications Inc 11.44ms from Columbus, US
96.109.43.85 AS7922 Comcast Cable Communications, LLC 2.84ms from Detroit, US
51.186.154.117 AS5607 Sky UK Limited 1.38ms from Dublin, IE
20.240.16.197 AS8075 Microsoft Corporation 0.21ms from Gaevle, SE
2.99.57.165 AS13285 TalkTalk Communications Limited 5.16ms from London, GB
145.241.221.181 AS31898 Oracle Corporation 0.26ms from London, GB
104.180.79.85 AS7018 AT&T Enterprises, LLC 5.53ms from Los Angeles, US
71.8.197.197 AS20115 Charter Communications LLC 19.64ms from Minneapolis, US
74.64.74.21 AS12271 Charter Communications Inc 3.94ms from New York City, US
152.179.37.5 AS701 Verizon Business 0.57ms from Philadelphia, US
194.228.254.117 AS5610 O2 Czech Republic, a.s. 0.94ms from Prague, CZ
58.56.112.37 AS4134 CHINANET-BACKBONE 5.94ms from Qingdao, CN
186.69.207.101 AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC) 2.67ms from Quito, EC
208.65.181.149 AS30640 Etheric Networks, Inc. 0.85ms from San Jose, US
111.20.60.197 AS9808 China Mobile Communications Group Co., Ltd. 1.38ms from Xi'an, CN
110.166.212.245 AS140061 Qinghai Telecom 3.08ms from Xining, CN
14.102.162.85 AS17625 BlazeNet's Network 4.32ms from Ahmedabad, IN
66.73.144.5 AS7018 AT&T Enterprises, LLC 5.51ms from Columbus, US
177.39.172.85 AS52768 Alsol Provedor de Internet Ltda 7.67ms from Fortaleza, BR
47.181.62.213 AS5650 Frontier Communications of America, Inc. 3.71ms from Los Angeles, US
51.155.4.133 AS13037 Zen Internet Ltd 1.20ms from Manchester, GB
213.254.16.5 AS12779 IT.Gate S.p.A. 2.26ms from Milan, IT

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -f5 -m13 211.85.19.108
traceroute to 211.85.19.108 (211.85.19.108): 13 hops max, 52 byte packets
5 [AS3356] 4.71.141.82 215.045 ms
6 *
7 *
8 [] 203.144.99.14 263.079 ms
9 [AS4538] 101.4.114.181 303.644 ms
10 [AS4538] 101.4.114.193 300.318 ms
11 *
12 *
13 *
Measurement taken from IPinfo ProbeNet in Lima, PE
On

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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