210.45.48.0/21

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 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 210.45.0.0/16

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

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

IP Address ASN Details
210.45.50.9 AS4538 China Education and Research Network Center 15.11ms from Shanghai, CN
210.45.48.66 AS4538 China Education and Research Network Center 14.54ms 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
71.62.82.229 AS7922 Comcast Cable Communications, LLC 10.20ms from Ashburn, US
20.7.14.133 AS8075 Microsoft Corporation 0.37ms from Boydton, US
95.170.234.245 AS16006 RUPKKI s.r.o. 6.26ms from Bratislava, SK
88.158.223.5 AS15471 S.N. Radiocomunicatii S.A. 3.44ms from Bucharest, RO
103.75.32.149 AS134319 Elyzium Technologies Pvt. Ltd. 1.15ms from Delhi, IN
199.190.152.53 AS3833 wyoming.com 9.37ms from Denver, US
84.118.146.21 AS3209 Vodafone GmbH 9.28ms from Frankfurt am Main, DE
134.158.137.85 AS789 Renater 2.59ms from Geneve, CH
20.247.97.245 AS8075 Microsoft Corporation 0.31ms from Hong Kong, HK
221.215.7.21 AS4837 CHINA UNICOM China169 Backbone 5.90ms from Jinan, CN
73.24.27.245 AS7922 Comcast Cable Communications, LLC 3.50ms from Minneapolis, US
193.161.206.69 AS203020 HostRoyale Technologies Pvt Ltd 1.29ms from Mumbai, IN
179.212.240.53 AS28573 Claro NXT Telecomunicacoes Ltda 4.63ms from Sao Paulo, BR
113.233.240.53 AS4837 CHINA UNICOM China169 Backbone 7.79ms from Tieling, CN
69.171.8.181 AS13767 DataBank Holdings, Ltd. 0.19ms from Ashburn, US
171.99.135.229 AS7470 TRUE INTERNET Co.,Ltd. 1.59ms from Bangkok, TH
167.114.158.165 AS16276 OVH SAS 0.07ms from Beauharnois, CA
200.179.205.165 AS4230 CLARO S.A. 13.78ms from Brasilia, BR
147.154.130.213 AS31898 Oracle Corporation 0.14ms from Frankfurt am Main, DE
169.50.1.229 AS36351 IBM Cloud 0.82ms from Frankfurt am Main, DE
71.204.137.37 AS7922 Comcast Cable Communications, LLC 2.50ms from Fremont, US
58.243.11.197 AS4837 CHINA UNICOM China169 Backbone 9.55ms from Huai'an, CN
220.149.251.149 AS9318 SK Broadband Co Ltd 2.44ms from Incheon, KR
18.171.157.53 AS16509 Amazon.com, Inc. 0.16ms from London, GB
109.152.34.69 AS2856 British Telecommunications PLC 2.82ms from London, GB

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 210.45.55.0
traceroute to 210.45.55.0 (210.45.55.0): 14 hops max, 52 byte packets
4 [AS9002] 87.245.232.244 29.876 ms
5 *
6 [AS58453] 223.120.10.41 28.539 ms
7 *
8 *
9 *
10 [AS4538] 101.4.114.181 216.718 ms
11 [AS4538] 101.4.114.193 204.502 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Riga, LV
On

What are IP address ranges?

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