202.206.240.0/20

AS4538  ·  China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        202.204.0.0 - 202.207.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:26Z
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

role:           CERNET Helpdesk
address:        CERNET Center
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-4049
fax-no:         +86-10-6278-5933
e-mail:         helpdesk@cernet.edu.cn
remarks:        abuse@cernet.edu.cn
admin-c:        XL1-CN
tech-c:         SZ2-AP
nic-hdl:        CER-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2020-09-03T09:14:12Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 202.206.0.0/16

No nearby ranges found.

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
202.206.240.14 xn--8mr985eba759cqq5a.icu 1

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

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

IP Address ASN Details
202.206.240.150 AS4538 China Education and Research Network Center 7.66ms from Beijing, CN
202.206.248.4 AS4538 China Education and Research Network Center 7.90ms from Beijing, CN
202.206.247.50 AS4538 China Education and Research Network Center 7.63ms from Beijing, CN
202.206.246.12 AS4538 China Education and Research Network Center 8.38ms from Tianjin, CN
202.206.242.37 AS4538 China Education and Research Network Center 7.61ms from Beijing, CN
202.206.243.45 AS4538 China Education and Research Network Center 7.55ms from Beijing, CN
202.206.245.239 AS4538 China Education and Research Network Center 7.27ms from Beijing, CN
202.206.253.123 AS4538 China Education and Research Network Center 7.74ms 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
185.71.123.4 AS59780 Surfboxx IT-Solutions GmbH 0.40ms from Berlin, DE
119.49.37.68 AS4837 CHINA UNICOM China169 Backbone 3.14ms from Changchun, CN
5.31.7.20 AS15802 Emirates Integrated Telecommunications Company PJSC 4.60ms from Dubai, AE
116.97.216.164 AS24086 Viettel Corporation 7.35ms from Hanoi, VN
47.239.28.84 AS45102 Alibaba (US) Technology Co., Ltd. 0.85ms from Hong Kong, HK
105.235.237.196 AS37487 guineanet 15.73ms from Lagos, NG
20.108.28.132 AS8075 Microsoft Corporation 0.38ms from London, GB
201.143.107.52 AS8151 UNINET 8.38ms from Los Angeles, US
95.242.94.212 AS3269 Telecom Italia S.p.A. 5.20ms from Naples, IT
177.138.227.196 AS27699 TELEFÔNICA BRASIL S.A 2.85ms from Osasco, BR
79.190.29.180 AS5617 Orange Polska Spolka Akcyjna 3.24ms from Warsaw, PL
47.252.20.164 AS45102 Alibaba (US) Technology Co., Ltd. 0.32ms from Ashburn, US
143.204.32.84 AS16509 Amazon.com, Inc. 0.09ms from Atlanta, US
123.117.172.196 AS4808 China Unicom Beijing Province Network 3.39ms from Beijing, CN
134.30.220.164 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 1.69ms from Berlin, DE
148.76.159.100 AS6128 Cablevision Systems Corp. 1.70ms from New York City, US
178.49.210.36 AS31200 Novotelecom Ltd 1.23ms from Novosibirsk, RU
93.17.94.244 AS15557 Societe Francaise Du Radiotelephone - SFR SA 19.85ms from Paris, FR
90.7.161.100 AS3215 Orange S.A. 4.54ms from Paris, FR
58.250.27.68 AS17623 China Unicom Shenzen network 3.22ms from Shenzhen, CN
217.208.86.132 AS3301 Telia Company AB 1.41ms from Stockholm, SE
140.134.224.100 AS1659 Taiwan Academic Network (TANet) Information Center 2.28ms from Taichung, TW
36.233.233.196 AS3462 Data Communication Business Group 1.71ms from Taichung, TW
87.71.111.244 AS12400 Partner Communications Ltd. 2.25ms from Tel Aviv, IL
99.228.206.180 AS812 Rogers Communications Canada Inc. 4.25ms from Toronto, CA

Traceroute

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

$
traceroute -a -n -q1 -f8 202.206.247.106
traceroute to 202.206.247.106 (202.206.247.106): 64 hops max, 52 byte packets
8 [AS4538] 101.4.113.234 12.654 ms
9 [AS4538] 222.30.144.66 9.576 ms
10 [AS4538] 222.30.144.6 7.579 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.

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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