210.43.32.0/21

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:        210.40.0.0 - 210.47.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          China Education and Research Network Center
descr:          Tsinghua University
descr:          Beijing, 100084
country:        CN
admin-c:        JW1-CN
tech-c:         XL1-CN
tech-c:         LZ1-CN
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        NS2.NET.EDU.CN
remarks:        DNS.EDU.CN
remarks:        CDNET52.CDNET.EDU.CN
remarks:        CDNET61.CDNET.EDU.CN
remarks:        DNS.WHNET.EDU.CN
remarks:        DNS.XANET.EDU.CN
remarks:        MARS.SHNET.EDU.CN
remarks:        MAVERICK.SYNET.EDU.CN
remarks:        NS1.NJNET.EDU.CN
remarks:        NS2.NJNET.EDU.CN
remarks:        ORANGE.GZNET.EDU.CN
remarks:        PINEAPPLE.GZNET.EDU.CN
remarks:        SAINT.SYNET.EDU.CN
remarks:        SUN200.WHNET.EDU.CN
remarks:        VENUS.SHNET.EDU.CN
remarks:        XANOC.XANET.EDU.CN
remarks:        service provider
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:43Z
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:         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 210.43.0.0/16

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

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

IP Address ASN Details
210.43.32.56 AS4538 China Education and Research Network Center 17.07ms from Beijing, CN
210.43.39.36 AS4538 China Education and Research Network Center 17.85ms from Beijing, CN
210.43.35.93 AS4538 China Education and Research Network Center 16.98ms 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
20.232.11.133 AS8075 Microsoft Corporation 0.50ms from Ashburn, US
108.93.146.69 AS7018 AT&T Enterprises, LLC 2.44ms from Atlanta, US
12.79.108.37 AS7018 AT&T Enterprises, LLC 3.54ms from Atlanta, US
81.169.162.69 AS6724 Strato GmbH 0.48ms from Berlin, DE
204.199.69.229 AS3549 Level 3 Parent, LLC 0.89ms from Bogota, CO
144.202.55.165 AS20473 The Constant Company, LLC 0.08ms from Chicago, US
207.183.136.5 AS395662 OzarksGo, LLC 9.31ms from Dallas, US
69.139.133.165 AS7922 Comcast Cable Communications, LLC 1.89ms from Detroit, US
208.98.188.37 AS15305 Syringa Networks, LLC 4.82ms from Draper, US
118.182.49.37 AS4134 CHINANET-BACKBONE 1.00ms from Lanzhou, CN
195.138.2.21 AS6773 SIBS Forward Payment Solutions, S.A. 2.60ms from Lisbon, PT
81.145.17.53 AS2856 British Telecommunications PLC 10.29ms from London, GB
147.148.6.5 AS2856 British Telecommunications PLC 2.10ms from London, GB
90.242.9.165 AS5378 Vodafone Limited 3.00ms from London, GB
92.59.238.197 AS12479 Orange Espagne SA 1.66ms from Madrid, ES
46.173.242.5 AS137409 GSL Networks Pty LTD 0.07ms from Secaucus, US
125.191.47.213 AS17858 LG POWERCOMM 1.96ms from Seoul, KR
121.183.99.53 AS4766 Korea Telecom 5.54ms from Seoul, KR
175.24.101.101 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.68ms from Shanghai, CN
202.179.11.229 AS9934 Mongolia Telecom 0.87ms from Ulan Bator, MN
46.75.251.229 AS8447 A1 Telekom Austria AG 12.33ms from Vienna, AT
103.83.190.245 AS136210 IT Spectrum Company Limited 6.53ms from Yangon, MM
83.174.232.37 AS28812 PJSC "Bashinformsvyaz" 8.72ms from Yekaterinburg, RU
73.172.205.181 AS7922 Comcast Cable Communications, LLC 6.40ms from Ashburn, US
139.208.105.229 AS4837 CHINA UNICOM China169 Backbone 9.52ms from Changchun, CN

Traceroute

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

$
traceroute -a -n -q1 -f6 210.43.39.36
traceroute to 210.43.39.36 (210.43.39.36): 64 hops max, 52 byte packets
6 [AS4538] 101.4.130.105 4.115 ms
7 *
8 *
9 [AS4538] 101.4.112.2 13.41 ms
10 *
11 [AS4538] 210.43.145.86 14.419 ms
12 *
13 [AS4538] 222.21.221.66 16.986 ms
14 *
15 *
16 *
17 *
18 [AS4538] 210.43.39.36 18.2 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.

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