202.112.1.0/24

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 Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
fax-no:         +86-10-62785933
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        [email protected] was validated on 2025-08-15
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-11-18T00:26:28Z
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:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2018-09-13T12:56:34Z
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:         [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        [email protected] was validated on 2025-08-15
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-15T09:38:28Z
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:         [email protected]
remarks:        [email protected]
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 202.112.1.0/24

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 no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
202.112.1.109	AS4538 China Education and Research Network Center	`2.67ms` 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
77.171.61.40	AS1136 KPN B.V.	`1.43ms` from Amsterdam, NL
8.140.176.120	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.98ms` from Beijing, CN
52.39.104.184	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
65.38.150.136	AS10835 Visionary Communications LLC	`4.30ms` from Denver, US
80.227.15.152	AS15802 Emirates Integrated Telecommunications Company PJSC	`2.77ms` from Dubai, AE
2.167.74.56	AS3320 Deutsche Telekom AG	`7.57ms` from Frankfurt am Main, DE
91.40.233.200	AS3320 Deutsche Telekom AG	`11.87ms` from Frankfurt am Main, DE
83.42.64.120	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.35ms` from Madrid, ES
153.36.252.88	AS4837 CHINA UNICOM China169 Backbone	`10.03ms` from Nanjing, CN
181.213.127.168	AS28573 Claro NXT Telecomunicacoes Ltda	`16.83ms` from Rio de Janeiro, BR
201.175.34.24	AS22908 Sixsigma Networks Mexico, S.A. de C.V.	`0.19ms` from Santiago de Queretaro, MX
171.127.159.232	AS4837 CHINA UNICOM China169 Backbone	`6.33ms` from Taiyuan, CN
128.100.80.216	AS239 University of Toronto	`0.92ms` from Toronto, CA
117.159.52.136	AS24445 Henan Mobile Communications Co.,Ltd	`3.53ms` from Zhengzhou, CN
168.7.66.8	AS8 Rice University	`1.70ms` from Houston, US
219.216.124.120	AS4538 China Education and Research Network Center	`2.58ms` from Liaoyang, CN
122.241.130.136	AS4134 CHINANET-BACKBONE	`9.71ms` from Ningbo, CN
60.150.174.40	AS17676 SoftBank Corp.	`3.95ms` from Osaka, JP
60.91.160.248	AS17676 SoftBank Corp.	`3.53ms` from Osaka, JP
86.223.50.40	AS3215 Orange S.A.	`9.54ms` from Paris, FR
44.218.14.8	AS14618 Amazon.com, Inc.	`0.24ms` from Reston, US
188.225.61.120	AS9123 JSC "TIMEWEB"	`0.38ms` from Saint Petersburg, RU
187.193.156.168	AS8151 UNINET	`4.26ms` from Santiago de Queretaro, MX
126.12.165.56	AS17676 SoftBank Corp.	`3.12ms` from Tokyo, JP
196.184.19.120	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`8.06ms` from Tunis, TN

Traceroute

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

traceroute -a -n -q1 -f3 202.112.1.1

traceroute to 202.112.1.1 (202.112.1.1): 64 hops max, 52 byte packets

3 [AS749] 11.254.129.101 1.37 ms

4 [AS749] 11.62.83.161 1.223 ms

5 *

6 [AS141679] 106.63.0.169 0.975 ms

7 *

8 *

9 *

10 *

11 [AS4538] 101.4.118.25 3.721 ms

12 [AS4538] 202.112.1.1 3.694 ms

Measurement taken from

IPinfo ProbeNet in Tianjin, CN

On December 6th 2025

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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