211.71.144.0/20

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:        211.70.0.0 - 211.71.255.255
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 211.71.0.0/16

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

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

IP Address ASN Details
211.71.150.1 AS4538 China Education and Research Network Center 2.58ms from Beijing, 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
3.88.92.148 AS14618 Amazon.com, Inc. 0.46ms from Ashburn, US
102.186.182.196 AS24835 Vodafone Data 7.93ms from Cairo, EG
3.130.4.164 AS16509 Amazon.com, Inc. 0.17ms from Columbus, US
193.185.100.68 AS719 Elisa Oyj 0.85ms from Helsinki, FI
31.185.252.148 AS6871 Plusnet 3.44ms from London, GB
14.139.124.244 AS55824 NKN Core Network 1.72ms from Mumbai, IN
191.13.204.68 AS27699 TELEFÔNICA BRASIL S.A 1.86ms from Osasco, BR
78.198.91.244 AS12322 Free SAS 1.21ms from Paris, FR
58.182.142.84 AS55430 Starhub Ltd 1.89ms from Singapore, SG
83.22.202.84 AS5617 Orange Polska Spolka Akcyjna 5.64ms from Wrocław, PL
223.76.127.100 AS9808 China Mobile Communications Group Co., Ltd. 4.22ms from Wuhan, CN
77.49.139.36 AS1241 Forthnet 1.99ms from Athens, GR
163.240.108.20 AS668 United States Department of Defense (DoD) 0.62ms from Atlanta, US
124.243.205.4 AS23724 IDC, China Telecommunications Corporation 3.19ms from Beijing, CN
3.74.4.180 AS16509 Amazon.com, Inc. 0.16ms from Frankfurt am Main, DE
199.226.99.52 AS5972 United States Department of Defense (DoD) 7.80ms from Frankfurt am Main, DE
81.84.128.228 AS2860 NOS COMUNICACOES, S.A. 7.75ms from Lisbon, PT
81.106.43.196 AS5089 Virgin Media Limited 3.51ms from London, GB
102.130.221.228 AS37645 Finstar - Sociedade de Investimento e Participacoes S.A 2.02ms from Luanda, AO
2.97.43.84 AS13285 TalkTalk Communications Limited 5.51ms from Manchester, GB
187.208.123.148 AS8151 UNINET 1.51ms from Mexico City, MX
172.68.58.68 AS14789 Cloudflare, Inc. 10.03ms from Minneapolis, US
84.208.97.52 AS25400 Telia Norge AS 6.40ms from Sandefjord, NO
65.129.231.196 AS209 CenturyLink Communications, LLC 10.39ms from Seattle, US
126.10.109.36 AS17676 SoftBank Corp. 3.27ms from Tokyo, JP

Traceroute

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

$
traceroute -a -n -q1 -f4 -m14 211.71.145.205
traceroute to 211.71.145.205 (211.71.145.205): 14 hops max, 52 byte packets
4 [AS8966] 195.229.27.117 47.553 ms
5 [AS8966] 5.195.70.166 48.03 ms
6 [AS8966] 194.170.186.3 265.525 ms
7 *
8 [AS4538] 101.4.114.181 346.107 ms
9 *
10 *
11 [AS4538] 101.4.116.126 239.679 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Kuwait City, KW
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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