202.113.168.0/21

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 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 202.113.168.0/21

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 202.113.0.0/16

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

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

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

IP Address ASN Details
202.113.168.1 AS4538 China Education and Research Network Center 5.29ms from Beijing, CN
202.113.171.1 AS4538 China Education and Research Network Center 5.39ms 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
81.184.51.53 AS6739 VODAFONE ONO, S.A. 6.47ms from Barcelona, ES
39.97.69.149 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.47ms from Beijing, CN
181.24.28.101 AS22927 Telefonica de Argentina 2.66ms from Buenos Aires, AR
178.157.10.69 AS42807 CIZGI TELEKOMUNIKASYON ANONIM SIRKETI 0.69ms from Istanbul, TR
185.14.210.5 AS51918 Cerberus Networks Ltd 3.99ms from London, GB
90.217.216.181 AS5607 Sky UK Limited 7.25ms from London, GB
201.116.53.69 AS8151 UNINET 4.13ms from Mexico City, MX
153.169.182.5 AS4713 NTT DOCOMO BUSINESS,Inc. 2.38ms from Osaka, JP
138.207.134.165 AS11776 Breezeline 17.75ms from Pittsburgh, US
220.90.79.245 AS4766 Korea Telecom 5.60ms from Seoul, KR
3.90.141.245 AS14618 Amazon.com, Inc. 0.92ms from Ashburn, US
210.82.66.21 AS4808 China Unicom Beijing Province Network 3.26ms from Beijing, CN
84.153.51.21 AS3320 Deutsche Telekom AG 4.43ms from Berlin, DE
191.104.125.229 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 4.57ms from Bogota, CO
109.57.172.101 AS44034 Hi3G Access AB 7.29ms from Copenhagen, DK
70.120.26.133 AS11427 Charter Communications Inc 10.87ms from Dallas, US
110.83.246.5 AS4134 CHINANET-BACKBONE 5.13ms from Fuzhou, CN
189.187.145.53 AS8151 UNINET 5.70ms from Guadalajara, MX
160.124.59.101 AS132839 POWER LINE DATACENTER 1.03ms from Hong Kong, HK
12.66.16.165 AS7018 AT&T Enterprises, LLC 1.74ms from Houston, US
117.67.43.37 AS4134 CHINANET-BACKBONE 11.72ms from Huai'an, CN
89.241.155.149 AS13285 TalkTalk Communications Limited 2.21ms from London, GB
176.112.219.117 AS199274 Serveroid, LLC 1.36ms from Moscow, RU
122.235.253.149 AS4134 CHINANET-BACKBONE 4.97ms from Ningbo, CN
217.18.159.5 AS15759 PJSC Rostelecom 5.07ms from Novosibirsk, RU

Traceroute

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

$
traceroute -a -n -q1 -f4 -m10 202.113.174.98
traceroute to 202.113.174.98 (202.113.174.98): 10 hops max, 52 byte packets
4 [] 37.49.237.116 20.844 ms
5 *
6 [] 123.255.91.118 188.53 ms
7 [AS4538] 101.4.114.181 231.187 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Reims, FR
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.

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