202.112.0.0/24

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 202.112.0.0/24

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 4 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
202.112.0.46	k12.edu.cn	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
202.112.0.122	AS4538 China Education and Research Network Center	`2.65ms` from Tianjin, 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
144.217.184.168	AS16276 OVH SAS	`0.12ms` from Beauharnois, CA
121.19.114.184	AS4837 CHINA UNICOM China169 Backbone	`10.66ms` from Beijing, CN
73.182.169.104	AS7922 Comcast Cable Communications, LLC	`5.53ms` from Boston, US
149.165.230.184	AS10680 Indiana University	`5.34ms` from Chicago, US
75.216.237.40	AS6167 Verizon Business	`6.81ms` from Denver, US
20.24.119.40	AS8075 Microsoft Corporation	`0.31ms` from Hong Kong, HK
189.157.18.104	AS8151 UNINET	`8.43ms` from Monterrey, MX
92.139.251.56	AS3215 Orange S.A.	`7.19ms` from Paris, FR
201.221.93.8	AS27789 GREENDOT	`1.13ms` from Princes Town, TT
100.30.117.56	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
47.28.209.24	AS33588 Charter Communications LLC	`18.44ms` from Seattle, US
128.95.148.232	AS73 University of Washington	`0.46ms` from Seattle, US
203.175.172.8	AS135437 HostSG	`0.68ms` from Singapore, SG
83.241.174.40	AS12552 GlobalConnect AB	`0.67ms` from Stockholm, SE
126.102.210.40	AS17676 SoftBank Corp.	`9.98ms` from Tokyo, JP
94.31.225.168	AS35154 PJSC Rostelecom	`0.87ms` from Yekaterinburg, RU
49.176.194.104	AS4804 Microplex PTY LTD	`3.10ms` from Brisbane, AU
222.162.191.8	AS4837 CHINA UNICOM China169 Backbone	`4.26ms` from Changchun, CN
73.102.141.152	AS7922 Comcast Cable Communications, LLC	`10.68ms` from Chicago, US
84.130.202.152	AS3320 Deutsche Telekom AG	`7.00ms` from Frankfurt am Main, DE
119.29.228.72	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.18ms` from Guangzhou, CN
91.204.123.200	AS48964 Private Enterprise "Enterra"	`5.84ms` from Kyiv, UA
98.167.140.168	AS22773 Cox Communications Inc.	`2.41ms` from Phoenix, US
123.135.206.24	AS4837 CHINA UNICOM China169 Backbone	`5.44ms` from Qingdao, CN
52.217.43.136	AS16509 Amazon.com, Inc.	`0.08ms` from Reston, US

Traceroute

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

traceroute -a -n -q1 -f3 202.112.0.113

traceroute to 202.112.0.113 (202.112.0.113): 64 hops max, 52 byte packets

3 [AS749] 11.62.82.158 1.266 ms

4 [AS749] 11.62.83.173 1.21 ms

5 *

6 [AS141679] 106.63.0.169 1.449 ms

7 [AS141679] 106.63.121.73 0.804 ms

8 *

9 *

10 *

11 *

12 [AS4538] 202.112.0.113 3.489 ms

Measurement taken from

IPinfo ProbeNet in Tianjin, CN

On December 7th 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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