211.80.80.0/21

AS4538  ·  China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        211.80.0.0 - 211.80.255.255
netname:        CERNET
descr:          China Education and Research Network
descr:          Room 224, Tsinghua University
descr:          Beijing, China
country:        CN
admin-c:        JW1-CN
tech-c:         XL1-CN
tech-c:         LZ1-CN
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        APNIC Very Large member, confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:10Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Center,
address:        FIT-3-220, 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:        abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by:         MAINT-CERNET-AP
last-modified:  2026-03-05T06:39:56Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Center,
address:        FIT-3-220, 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 2026-03-05
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-05T06:40:20Z
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:         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:         ling@scut.edu.cn
nic-hdl:        LZ1-CN
notify:         dbmon@apnic.net
mnt-by:         MAINT-NULL
last-modified:  2011-12-22T05:14:25Z
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 211.80.0.0/16

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

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

IP Address ASN Details
211.80.83.254 AS4538 China Education and Research Network Center 2.61ms from Shanghai, CN
211.80.86.61 AS4538 China Education and Research Network Center 1.67ms from Shanghai, CN
211.80.80.254 AS4538 China Education and Research Network Center 1.99ms from Shanghai, CN
211.80.81.254 AS4538 China Education and Research Network Center 1.82ms from Shanghai, CN
211.80.87.160 AS4538 China Education and Research Network Center 2.58ms from Shanghai, CN
211.80.85.254 AS4538 China Education and Research Network Center 3.72ms from Shanghai, 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
44.203.135.85 AS14618 Amazon.com, Inc. 0.50ms from Ashburn, US
206.189.129.133 AS14061 DigitalOcean, LLC 0.27ms from Bengaluru, IN
98.10.169.165 AS11351 Charter Communications Inc 17.01ms from Chicago, US
73.22.146.21 AS7922 Comcast Cable Communications, LLC 5.62ms from Chicago, US
77.234.175.101 AS34482 TDC Holding A/S 1.28ms from Copenhagen, DK
84.60.186.37 AS3209 Vodafone GmbH 2.70ms from Hamburg, DE
207.56.86.213 AS54801 Zillion Network Inc. 1.53ms from Hong Kong, HK
88.30.136.53 AS3352 TELEFONICA DE ESPANA S.A.U. 15.32ms from Madrid, ES
161.129.0.37 AS22804 Ideal Integrations, LLC 1.13ms from Phoenix, US
189.190.196.117 AS8151 UNINET 6.42ms from Santiago de Queretaro, MX
191.23.1.117 AS26599 TELEFÔNICA BRASIL S.A 2.29ms from São Paulo, BR
105.107.218.117 AS36947 Telecom Algeria 12.93ms from Algiers, DZ
98.10.130.149 AS11351 Charter Communications Inc 19.50ms from Chicago, US
68.64.199.21 AS32654 Towerstream I, Inc. 0.74ms from Chicago, US
69.240.232.21 AS7922 Comcast Cable Communications, LLC 1.08ms from Denver, US
70.95.136.101 AS20001 Charter Communications Inc 5.55ms from Los Angeles, US
90.84.162.21 AS2285 OCB Orange Cloud Business CDN ASN 0.13ms from Madrid, ES
195.209.46.37 AS12722 RECONN LLC 0.60ms from Moscow, RU
188.43.44.37 AS20485 Joint Stock Company TransTeleCom 19.10ms from Moscow, RU
24.38.87.133 AS6128 Cablevision Systems Corp. 2.65ms from New York City, US
81.250.224.117 AS3215 Orange S.A. 1.56ms from Paris, FR
49.27.50.101 AS4766 Korea Telecom 6.82ms from Seoul, KR
213.8.135.101 AS12400 Partner Communications Ltd. 1.31ms from Tel Aviv, IL
180.27.225.5 AS4713 NTT DOCOMO BUSINESS,Inc. 7.55ms from Tokyo, JP
81.206.121.69 AS1136 KPN B.V. 1.83ms from Amsterdam, NL

Traceroute

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

$
traceroute -a -n -q1 -f3 -m14 211.80.87.41
traceroute to 211.80.87.41 (211.80.87.41): 14 hops max, 52 byte packets
3 [AS749] 7.152.4.66 1.672 ms
4 [AS749] 7.152.10.98 1.632 ms
5 *
6 *
7 [AS147038] 60.164.37.1 0.577 ms
9 *
10 *
11 [AS4538] 101.4.118.54 35.062 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Qingyang, 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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