202.112.208.0/21

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 202.112.0.0/15
Registry APNIC
ID BJR-CERNET

WHOIS Details

inetnum:        202.112.0.0 - 202.113.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing Regional Network
country:        CN
org:            ORG-CEAR1-AP
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:  2020-05-28T02:35:51Z
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

organisation:   ORG-CEAR1-AP
org-name:       China Education and Research Network (CERNET)
country:        CN
address:        FIT 3-220,
address:        Tsinghua University
phone:          +86-10-62785983
fax-no:         +86-10-62785933
e-mail:         hostmaster@cernic.net
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2018-09-13T12:56:34Z
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

Overlapping Ranges

BGP prefixes that contain 202.112.208.0/21

Range ASN Company Num of IPs
202.112.0.0/15 AS4538 China Education and Research Network 131,072

Nearby Ranges

BGP prefixes that overlap with 202.112.0.0/16

Range ASN Company Num of IPs
202.112.0.0/15 AS4538 China Education and Research Network 131,072

Hosted domains

There are 5 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP

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

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

IP Address ASN Details
202.112.209.61 AS4538 China Education and Research Network Center 3.41ms from Beijing, CN
202.112.215.5 AS4538 China Education and Research Network Center 3.60ms 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
154.240.43.21 AS36947 Telecom Algeria 14.73ms from Algiers, DZ
195.241.193.229 AS1136 KPN B.V. 2.26ms from Amsterdam, NL
51.105.123.149 AS8075 Microsoft Corporation 0.22ms from Amsterdam, NL
43.166.162.197 AS132203 Tencent Building, Kejizhongyi Avenue 0.25ms from Ashburn, US
87.152.162.197 AS3320 Deutsche Telekom AG 2.12ms from Berlin, DE
174.51.11.197 AS7922 Comcast Cable Communications, LLC 7.82ms from Denver, US
89.211.2.101 AS8781 Ooredoo Q.S.C. 0.05ms from Doha, QA
129.204.159.21 AS45090 Shenzhen Tencent Computer Systems Company Limited 2.18ms from Guangzhou, CN
61.93.140.69 AS9269 Hong Kong Broadband Network Ltd. 0.51ms from Hong Kong, HK
59.16.221.37 AS4766 Korea Telecom 1.02ms from Incheon, KR
154.72.43.69 AS23764 CTGNet 0.10ms from Johannesburg, ZA
154.64.138.37 AS59538 UPSTREAM NETWORK LTD 0.30ms from London, GB
184.174.77.213 AS21769 Colocation America Corporation 0.18ms from Los Angeles, US
185.202.147.69 AS205193 XNET CORE SL 1.15ms from Madrid, ES
162.246.78.117 AS7116 Toyota Motor Sales, U.S.A., Inc. 3.33ms from Phoenix, US
90.179.158.101 AS5610 O2 Czech Republic, a.s. 6.11ms from Prague, CZ
212.94.42.5 AS28859 Convotis Schweiz AG 1.98ms from Zuerich, CH
88.159.100.101 AS1136 KPN B.V. 3.21ms from Amsterdam, NL
96.216.87.149 AS7922 Comcast Cable Communications, LLC 2.45ms from Ashburn, US
48.202.141.197 AS8075 Microsoft Corporation 0.49ms from Ashburn, US
195.238.24.101 AS5432 Proximus NV 0.76ms from Brussels, BE
90.95.21.197 AS8953 Orange Romania S.A. 1.63ms from Bucharest, RO
193.224.110.21 AS1955 KIFU (Governmental Info Tech Development Agency) 0.39ms from Budapest, HU
138.210.166.69 AS2379 CenturyLink Communications, LLC 10.63ms from Chicago, US
14.245.248.101 AS45899 VNPT Corp 4.75ms from Da Nang, VN

Traceroute

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

$
traceroute -a -n -q1 -f4 -m11 202.112.210.62
traceroute to 202.112.210.62 (202.112.210.62): 11 hops max, 52 byte packets
4 [AS4538] 101.4.114.181 35.638 ms
5 *
6 [AS4538] 101.4.117.81 35.035 ms
7 [AS4538] 101.4.112.98 35.427 ms
8 [AS4538] 101.4.113.229 36.011 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
On

What are IP address ranges?

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