211.85.0.0/16

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 211.0.0.0/8

Range ASN Company Num of IPs
211.216.0.0/13 AS38089 Korea Telecom 524,288
211.136.0.0/13 AS9808 China Mobile Communications Corporation 524,288
211.136.0.0/13 AS56046 China Mobile Communications Corporation 524,288
211.216.0.0/13 AS152214 Korea Telecom 524,288
211.216.0.0/13 AS4961 Korea Telecom 524,288
211.216.0.0/13 AS17859 Korea Telecom 524,288
211.216.0.0/13 AS9318 Korea Telecom 524,288
211.216.0.0/13 AS4766 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
211.32.0.0/16 AS9319 LG DACOM Corporation 65,536
211.124.0.0/16 AS9617 JCOM Co., Ltd. 65,536
211.183.0.0/16 AS9457 DREAMLINE CO. 65,536
211.40.0.0/16 AS9319 LG DACOM Corporation 65,536
211.48.0.0/16 AS17615 Korea Telecom 65,536
211.6.0.0/16 AS4713 NTT DOCOMO BUSINESS,Inc. 65,536
211.59.0.0/16 AS9318 SK Broadband Co Ltd 65,536
211.183.0.0/16 AS17875 DREAMLINE CO. 65,536
211.151.0.0/16 AS9802 21ViaNet(China),Inc. 65,536
211.183.0.0/16 AS17878 DREAMLINE CO. 65,536
211.26.0.0/16 AS9443 Vocus Australia 65,536
211.249.0.0/16 AS9457 DREAMLINE CO. 65,536
211.32.0.0/16 AS9699 LG DACOM Corporation 65,536
211.151.0.0/16 AS23724 21ViaNet(China),Inc. 65,536
211.11.0.0/16 AS4713 NTT DOCOMO BUSINESS,Inc. 65,536
211.129.0.0/16 AS4713 NTT DOCOMO BUSINESS,Inc. 65,536
211.58.0.0/16 AS9318 SK Broadband Co Ltd 65,536
211.23.0.0/16 AS3462 Data Communication Business Group, 65,536
211.151.0.0/16 AS9802 21ViaNet(China),Inc. 65,536
211.27.0.0/16 AS9443 Vocus Australia 65,536
211.21.0.0/16 AS3462 Data Communication Business Group, 65,536
211.158.0.0/16 AS4837 CHONGQING CNC BROADBAND NETWORKS CO.,LTD 65,536
211.146.0.0/16 AS4847 China Network Information Center 65,536
211.0.0.0/16 AS4713 NTT DOCOMO BUSINESS,Inc. 65,536
211.22.0.0/16 AS3462 Data Communication Business Group, 65,536
211.151.0.0/16 AS9308 21ViaNet(China),Inc. 65,536
211.20.0.0/16 AS3462 Data Communication Business Group, 65,536
211.175.0.0/16 AS9457 DREAMLINE CO. 65,536
211.151.0.0/16 AS23724 21ViaNet(China),Inc. 65,536
211.166.0.0/16 AS9389 No.4, Zhongguancun No.4 South Street, 65,536
211.98.0.0/16 AS9394 China TieTong Telecommunications Corporation 65,536
211.151.0.0/16 AS9308 21ViaNet(China),Inc. 65,536
211.32.0.0/16 AS9967 LG DACOM Corporation 65,536
211.169.0.0/16 AS38661 DACOM Corp. 65,536
211.50.0.0/16 AS3786 LG DACOM Corporation 65,536
211.60.0.0/16 AS3786 LG DACOM Corporation 65,536
211.244.0.0/16 AS9318 SK Broadband Co Ltd 65,536
211.243.0.0/16 AS9318 SK Broadband Co Ltd 65,536
211.51.0.0/16 AS9852 Korea Telecom 65,536

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

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

IP Address ASN Details
211.85.207.26 AS4538 China Education and Research Network Center 16.94ms from Guangzhou, CN
211.85.4.252 AS4538 China Education and Research Network Center 7.40ms from Wuhan, CN
211.85.189.224 AS4538 China Education and Research Network Center 7.27ms from Wuhan, CN
211.85.197.14 AS4538 China Education and Research Network Center 17.82ms from Guangzhou, CN
211.85.9.2 AS4538 China Education and Research Network Center 7.42ms from Wuhan, CN
211.85.194.109 AS4538 China Education and Research Network Center 17.95ms from Guangzhou, CN
211.85.184.135 AS4538 China Education and Research Network Center 7.12ms from Wuhan, CN
211.85.176.197 AS4538 China Education and Research Network Center 2.03ms from Wuhan, CN
211.85.205.31 AS4538 China Education and Research Network Center 18.19ms from Guangzhou, CN
211.85.186.1 AS4538 China Education and Research Network Center 9.77ms from Wuhan, CN
211.85.187.1 AS4538 China Education and Research Network Center 8.36ms from Wuhan, CN
211.85.181.47 AS4538 China Education and Research Network Center 7.43ms from Wuhan, CN
211.85.182.1 AS4538 China Education and Research Network Center 8.27ms from Wuhan, CN
211.85.183.239 AS4538 China Education and Research Network Center 7.05ms from Wuhan, CN
211.85.185.242 AS4538 China Education and Research Network Center 8.61ms from Wuhan, CN
211.85.177.1 AS4538 China Education and Research Network Center 8.31ms from Wuhan, CN
211.85.179.11 AS4538 China Education and Research Network Center 7.53ms from Wuhan, CN
211.85.190.1 AS4538 China Education and Research Network Center 8.28ms from Wuhan, CN
211.85.193.233 AS4538 China Education and Research Network Center 16.98ms from Guangzhou, CN
211.85.188.3 AS4538 China Education and Research Network Center 7.45ms from Wuhan, CN
211.85.12.254 AS4538 China Education and Research Network Center 7.01ms from Wuhan, CN
211.85.198.53 AS4538 China Education and Research Network Center 17.58ms from Guangzhou, CN
211.85.192.12 AS4538 China Education and Research Network Center 17.13ms from Guangzhou, CN
211.85.178.1 AS4538 China Education and Research Network Center 8.71ms from Wuhan, CN
211.85.191.1 AS4538 China Education and Research Network Center 8.74ms from Wuhan, 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
98.121.102.16 AS11426 Charter Communications Inc 8.38ms from Charlotte, US
206.255.214.192 AS53508 Cablelynx 15.14ms from Dallas, US
87.149.158.48 AS3320 Deutsche Telekom AG 4.40ms from Duesseldorf, DE
84.148.108.32 AS3320 Deutsche Telekom AG 2.45ms from Frankfurt am Main, DE
113.125.100.144 AS58519 Cloud Computing Corporation 0.30ms from Guiyang, CN
61.93.31.192 AS9269 Hong Kong Broadband Network Ltd. 0.83ms from Hong Kong, HK
222.237.35.208 AS9318 SK Broadband Co Ltd 2.08ms from Incheon, KR
185.61.158.48 AS25369 Hydra Communications Ltd 0.33ms from London, GB
212.20.49.96 AS12389 PJSC Rostelecom 0.76ms from Novosibirsk, RU
86.218.61.112 AS3215 Orange S.A. 1.94ms from Paris, FR
96.227.131.208 AS701 Verizon Business 1.95ms from Philadelphia, US
209.184.142.32 AS7018 AT&T Enterprises, LLC 3.60ms from San Jose, US
61.251.247.208 AS9689 SK Broadband Co Ltd 2.15ms from Seoul, KR
83.68.225.176 AS51132 Arkaden Konsult AB 7.83ms from Stockholm, SE
40.76.249.32 AS8075 Microsoft Corporation 0.50ms from Ashburn, US
1.89.129.208 AS17429 BEIJING GEHUA CATV NETWORK CO.LTD 13.02ms from Beijing, CN
2.107.181.32 AS3292 TDC Holding A/S 0.85ms from Copenhagen, DK
20.84.249.64 AS8075 Microsoft Corporation 0.16ms from Des Moines, US
198.244.131.64 AS16276 OVH SAS 0.10ms from Erith, GB
68.41.60.128 AS7922 Comcast Cable Communications, LLC 8.86ms from Flint, US
90.200.103.144 AS5607 Sky UK Limited 5.93ms from London, GB
41.173.37.96 AS36937 Liquid Telecommunications South Africa (Pty) Ltd 10.71ms from Lusaka, ZM
20.143.28.16 AS8075 Microsoft Corporation 0.16ms from Madrid, ES
203.15.254.240 AS1221 Telstra Limited 3.18ms from Melbourne, AU
67.86.131.48 AS6128 Cablevision Systems Corp. 6.00ms from New York City, US

Traceroute

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

$
traceroute -a -n -q1 -f2 -m14 211.85.104.57
traceroute to 211.85.104.57 (211.85.104.57): 14 hops max, 52 byte packets
2 [AS3356] 4.69.219.45 45.871 ms
3 [AS3356] 4.71.141.82 143.835 ms
4 *
5 *
6 *
7 [AS4538] 101.4.114.181 212.268 ms
8 *
9 *
10 [AS4538] 101.4.112.66 228.911 ms
11 [AS4538] 101.4.118.214 229.354 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Casper, US
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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