211.80.0.0/13

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:        211.81.0.0 - 211.82.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Beijing 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:  2020-10-20T00:56:14Z
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 2025-08-15
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:         [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 2025-08-15
abuse-mailbox:  [email protected]
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:         [email protected]
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:         [email protected]
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:         [email protected]
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 211.0.0.0/8

Range ASN Company Num of IPs
211.216.0.0/13 AS152214 Korea Telecom 524,288
211.216.0.0/13 AS4961 Korea Telecom 524,288
211.136.0.0/13 AS56046 China Mobile Communications Corporation 524,288
211.216.0.0/13 AS17859 Korea Telecom 524,288
211.216.0.0/13 AS4766 Korea Telecom 524,288
211.216.0.0/13 AS9318 Korea Telecom 524,288
211.136.0.0/13 AS9808 China Mobile Communications Corporation 524,288
211.216.0.0/13 AS38089 Korea Telecom 524,288
211.208.0.0/14 AS9318 SK Broadband Co Ltd 262,144
211.212.0.0/14 AS9318 SK Broadband Co Ltd 262,144
211.28.0.0/14 AS4804 OPTUS INTERNET - RETAIL 262,144
211.51.0.0/16 AS9852 Korea Telecom 65,536
211.171.0.0/16 AS9641 DACOM Corp. 65,536
211.48.0.0/16 AS9868 Korea Telecom 65,536
211.27.0.0/16 AS9443 Vocus Australia 65,536
211.166.0.0/16 AS9389 No.4, Zhongguancun No.4 South Street, 65,536
211.249.0.0/16 AS9457 DREAMLINE CO. 65,536
211.124.0.0/16 AS9617 JCOM Co., Ltd. 65,536
211.151.0.0/16 AS9802 21ViaNet(China),Inc. 65,536
211.129.0.0/16 AS4713 NTT DOCOMO BUSINESS,Inc. 65,536
211.175.0.0/16 AS9457 DREAMLINE CO. 65,536
211.158.0.0/16 AS4837 CHONGQING CNC BROADBAND NETWORKS CO.,LTD 65,536
211.169.0.0/16 AS38661 DACOM Corp. 65,536
211.146.0.0/16 AS4847 China Network Information Center 65,536
211.146.0.0/16 AS7641 China Network Information Center 65,536
211.151.0.0/16 AS9308 21ViaNet(China),Inc. 65,536
211.98.0.0/16 AS9394 China TieTong Telecommunications Corporation 65,536
211.26.0.0/16 AS9443 Vocus Australia 65,536
211.171.0.0/16 AS3786 DACOM Corp. 65,536
211.6.0.0/16 AS4713 NTT DOCOMO BUSINESS,Inc. 65,536
211.0.0.0/16 AS4713 NTT DOCOMO BUSINESS,Inc. 65,536
211.169.0.0/16 AS9526 DACOM Corp. 65,536
211.48.0.0/16 AS17615 Korea Telecom 65,536
211.151.0.0/16 AS9802 21ViaNet(China),Inc. 65,536
211.169.0.0/16 AS3786 DACOM Corp. 65,536
211.170.0.0/16 AS3786 DACOM Corp. 65,536
211.32.0.0/16 AS3786 LG DACOM Corporation 65,536
211.51.0.0/16 AS18314 Korea Telecom 65,536
211.40.0.0/16 AS3786 LG DACOM Corporation 65,536
211.18.0.0/16 AS2516 KDDI CORPORATION 65,536
211.53.0.0/16 AS3786 LG DACOM Corporation 65,536
211.60.0.0/16 AS3786 LG DACOM Corporation 65,536
211.151.0.0/16 AS23724 21ViaNet(China),Inc. 65,536
211.151.0.0/16 AS23724 21ViaNet(China),Inc. 65,536
211.183.0.0/16 AS17878 DREAMLINE CO. 65,536
211.53.0.0/16 AS18294 LG DACOM Corporation 65,536
211.89.0.0/16 AS7641 China Cable Television Network Co. 65,536
211.151.0.0/16 AS9308 21ViaNet(China),Inc. 65,536
211.50.0.0/16 AS3786 LG DACOM Corporation 65,536
211.183.0.0/16 AS17875 DREAMLINE CO. 65,536

Hosted domains

There are 71 domain names hosted across 67 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
211.82.204.107 xn--fiqs8srwbla57zh5z.cn 5
211.81.208.6 hebeinu.edu.cn 1
211.82.254.100 chmiot.com 1
211.81.128.5 tsc.edu.cn 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

9,731 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
211.87.227.218 AS4538 China Education and Research Network Center 10.02ms from Beijing, CN
211.86.158.124 AS4538 China Education and Research Network Center 12.44ms from Shanghai, CN
211.87.190.60 AS4538 China Education and Research Network Center 16.12ms from Beijing, CN
211.87.145.254 AS4538 China Education and Research Network Center 1.44ms from Qingdao, CN
211.87.151.28 AS4538 China Education and Research Network Center 1.16ms from Qingdao, CN
211.86.212.40 AS4538 China Education and Research Network Center 14.05ms from Shanghai, CN
211.87.255.1 AS4538 China Education and Research Network Center 16.99ms from Beijing, CN
211.86.151.39 AS4538 China Education and Research Network Center 10.47ms from Shanghai, CN
211.87.72.10 AS4538 China Education and Research Network Center 12.02ms from Shanghai, CN
211.86.193.81 AS4538 China Education and Research Network Center 14.43ms from Shanghai, CN
211.87.254.37 AS4538 China Education and Research Network Center 9.37ms from Beijing, CN
211.86.155.194 AS4538 China Education and Research Network Center 10.50ms from Shanghai, CN
211.87.152.254 AS4538 China Education and Research Network Center 1.33ms from Qingdao, CN
211.87.4.70 AS4538 China Education and Research Network Center 11.32ms from Shanghai, CN
211.86.153.58 AS4538 China Education and Research Network Center 11.53ms from Shanghai, CN
211.87.178.171 AS4538 China Education and Research Network Center 15.29ms from Beijing, CN
211.87.155.73 AS4538 China Education and Research Network Center 1.09ms from Qingdao, CN
211.86.149.45 AS4538 China Education and Research Network Center 10.88ms from Shanghai, CN
211.87.179.133 AS4538 China Education and Research Network Center 1.43ms from Qingdao, CN
211.87.53.173 AS4538 China Education and Research Network Center 14.29ms from Shanghai, CN
211.86.197.12 AS4538 China Education and Research Network Center 14.39ms from Shanghai, CN
211.87.177.20 AS4538 China Education and Research Network Center 15.26ms from Beijing, CN
211.87.146.254 AS4538 China Education and Research Network Center 1.22ms from Qingdao, CN
211.86.128.1 AS4538 China Education and Research Network Center 15.17ms from Shanghai, CN
211.87.159.254 AS4538 China Education and Research Network Center 2.02ms from Qingdao, 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
111.194.236.93 AS4808 China Unicom Beijing Province Network 3.53ms from Beijing, CN
91.101.115.237 AS15516 DKTV A/S 1.16ms from Copenhagen, DK
220.126.118.205 AS4766 Korea Telecom 0.87ms from Incheon, KR
13.204.243.109 AS16509 Amazon.com, Inc. 0.15ms from Mumbai, IN
162.144.114.109 AS46606 Unified Layer 2.00ms from Salt Lake City, US
99.123.0.157 AS7018 AT&T Enterprises, LLC 3.51ms from San Jose, US
83.13.95.253 AS5617 Orange Polska Spolka Akcyjna 3.29ms from Warsaw, PL
211.151.144.93 AS23724 IDC, China Telecommunications Corporation 2.49ms from Beijing, CN
71.232.73.93 AS7922 Comcast Cable Communications, LLC 8.23ms from Boston, US
67.212.188.237 AS32475 Internap Holding LLC 0.97ms from Chicago, US
135.26.67.221 AS6300 Fidium 9.36ms from Dallas, US
122.47.214.141 AS17858 LG POWERCOMM 1.65ms from Incheon, KR
73.193.196.77 AS7922 Comcast Cable Communications, LLC 6.89ms from New York City, US
68.205.116.205 AS33363 Charter Communications, Inc 7.38ms from Orlando, US
126.111.163.29 AS17676 SoftBank Corp. 8.15ms from Osaka, JP
222.230.157.45 AS2519 ARTERIA Networks Corporation 7.44ms from Osaka, JP
147.93.38.141 AS47583 Hostinger International Limited 0.22ms from Osasco, BR
200.149.224.61 AS7738 V tal 0.88ms from Rio de Janeiro, BR
178.32.210.109 AS16276 OVH SAS 0.07ms from Roubaix, FR
186.222.94.237 AS28573 Claro NXT Telecomunicacoes Ltda 8.74ms from Sao Paulo, BR
182.171.60.141 AS2527 Sony Network Communications Inc. 1.91ms from Tokyo, JP
212.205.237.125 AS6799 Ote SA (Hellenic Telecommunications Organisation) 1.15ms from Athens, GR
117.215.42.205 AS9829 National Internet Backbone 9.33ms from Bengaluru, IN
218.253.85.13 AS9381 HKBN Enterprise Solutions HK Limited 0.69ms from Hong Kong, HK
41.30.91.237 AS29975 Vodacom 14.19ms from Johannesburg, ZA

Traceroute

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

$
traceroute -a -n -q1 211.83.33.124
traceroute to 211.83.33.124 (211.83.33.124): 64 hops max, 52 byte packets
1 [AS749] 11.222.237.50 2.744 ms
2 [AS749] 11.73.44.41 0.623 ms
3 [AS749] 11.73.23.241 0.636 ms
4 *
5 *
6 *
7 *
8 *
9 [AS4538] 101.4.130.61 4.957 ms
10 *
11 [AS4538] 101.4.112.14 25.921 ms
12 [AS4538] 101.4.112.49 21.956 ms
13 *
14 [AS4538] 101.4.112.194 40.571 ms
15 *
16 *
17 *
18 *
19 [AS4538] 211.83.33.124 42.41 ms
Measurement taken from IPinfo ProbeNet in Beijing, CN
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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