210.28.112.0/21

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:        210.26.0.0 - 210.31.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Room 224, Tsinghua University
descr:          Beijing, China
country:        CN
admin-c:        JW725-AP
tech-c:         XL364-AP
tech-c:         LZ530-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:02Z
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:        JW725-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:23:32Z
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:        LZ530-AP
notify:         dbmon@apnic.net
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:23:32Z
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:        XL364-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:23:32Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 210.28.0.0/16

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
5.39.222.245 AS57043 HOSTKEY B.V. 0.31ms from Amsterdam, NL
111.166.113.181 AS4837 CHINA UNICOM China169 Backbone 5.32ms from Beijing, CN
221.8.39.53 AS4837 CHINA UNICOM China169 Backbone 1.32ms from Changchun, CN
141.219.153.53 AS62618 Michigan Technological University 12.80ms from Chicago, US
104.9.73.85 AS7018 AT&T Enterprises, LLC 1.59ms from Chicago, US
222.180.119.165 AS4134 CHINANET BACKBONE 4.88ms from Chongqing, CN
74.133.151.133 AS10796 Charter Communications Inc 19.54ms from Columbus, US
3.68.3.197 AS16509 Amazon.com, Inc. 0.32ms from Frankfurt am Main, DE
221.127.161.37 AS9304 HGC Global Communications Limited 1.09ms from Hong Kong, HK
199.8.73.101 AS1767 Indiana Higher Education Telecommunication System (IHETS) 0.68ms from Indianapolis, US
109.61.214.37 AS12389 PJSC Rostelecom 13.20ms from Moscow, RU
70.126.181.69 AS33363 Charter Communications, Inc 7.59ms from Orlando, US
54.83.38.181 AS14618 Amazon.com, Inc. 0.24ms from Reston, US
184.68.175.69 AS6327 Shaw Communications 3.25ms from Seattle, US
116.232.186.37 AS4812 China Telecom (Group) 2.84ms from Shanghai, CN
120.195.14.37 AS56046 China Mobile communications corporation 2.87ms from Suzhou, CN
183.203.252.213 AS56042 China Mobile communications corporation 2.39ms from Taiyuan, CN
3.113.163.117 AS16509 Amazon.com, Inc. 0.24ms from Tokyo, JP
182.121.140.53 AS4837 CHINA UNICOM China169 Backbone 2.92ms from Zhengzhou, CN
75.86.241.69 AS10796 Charter Communications Inc 8.42ms from Chicago, US
70.94.92.5 AS11427 Charter Communications Inc 15.73ms from Dallas, US
178.7.179.37 AS3209 Vodafone GmbH 6.69ms from Duesseldorf, DE
79.227.126.69 AS3320 Deutsche Telekom AG 2.28ms from Frankfurt am Main, DE
73.220.173.85 AS7922 Comcast Cable Communications, LLC 6.69ms from Fremont, US
83.0.117.181 AS5617 Orange Polska Spolka Akcyjna 1.35ms from Gdansk, PL

Traceroute

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

$
traceroute -a -n -q1 -f8 -m13 210.28.113.171
traceroute to 210.28.113.171 (210.28.113.171): 13 hops max, 52 byte packets
8 [AS4637] 210.57.81.65 20.971 ms
9 [] 123.255.91.118 19.931 ms
10 [AS4538] 101.4.114.181 56.124 ms
11 *
12 *
13 *
Measurement taken from IPinfo ProbeNet in Manila, PH
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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