202.113.144.0/20

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:         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:        http://www.ccert.edu.cn
remarks:        abuse@cernet.edu.cn was validated on 2025-08-15
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-09-04T00:59:41Z
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 Research Center,
address:        Main Bldg, 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 2025-08-15
abuse-mailbox:  abuse@cernet.edu.cn
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:         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 202.113.144.0/20

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
202.113.159.6 AS4538 China Education and Research Network Center 4.83ms from Beijing, CN
202.113.144.209 AS4538 China Education and Research Network Center 5.69ms 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
47.253.40.84 AS45102 Alibaba (US) Technology Co., Ltd. 0.29ms from Ashburn, US
223.122.138.196 AS137872 China Mobile Hong Kong Company Limited 2.55ms from Hong Kong, HK
39.46.250.4 AS17557 Pakistan Telecommunication Company Limited 9.50ms from Islamabad, PK
138.100.2.164 AS766 RedIRIS Autonomous System 0.71ms from Madrid, ES
72.146.8.228 AS8075 Microsoft Corporation 0.29ms from Milan, IT
169.150.78.212 AS30257 Gibson Electric Membership Corporation 8.99ms from Nashville, US
27.84.39.244 AS2516 KDDI CORPORATION 6.88ms from Osaka, JP
54.227.170.228 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
210.107.9.68 AS3786 LG DACOM Corporation 1.95ms from Seoul, KR
202.121.49.52 AS4538 China Education and Research Network Center 2.03ms from Shanghai, CN
201.61.203.4 AS27699 TELEFÔNICA BRASIL S.A 1.60ms from São Paulo, BR
62.112.166.164 AS16074 Capgemini Nederland B.V. 0.61ms from Amsterdam, NL
197.165.254.68 AS24863 Link Egypt (Link.NET) 7.39ms from Cairo, EG
64.99.157.4 AS32133 Ting Fiber Inc. 5.25ms from Charlotte, US
27.8.81.228 AS4837 CHINA UNICOM China169 Backbone 3.36ms from Chongqing, CN
171.38.22.148 AS4837 CHINA UNICOM China169 Backbone 6.79ms from Nanning, CN
14.133.10.212 AS18126 Chubu Telecommunications Company, Inc. 8.37ms from Osaka, JP
68.123.189.84 AS7018 AT&T Enterprises, LLC 2.77ms from San Jose, US
121.21.2.180 AS4837 CHINA UNICOM China169 Backbone 11.51ms from Tianjin, CN
46.249.115.244 AS16509 Amazon.com, Inc. 0.19ms from Tokyo, JP
37.97.141.4 AS20857 Signet B.V. 0.59ms from Amsterdam, NL
185.215.253.116 AS39637 ADES BV 0.55ms from Amsterdam, NL
173.66.63.212 AS701 Verizon Business 2.43ms from Ashburn, US
97.166.82.164 AS6167 Verizon Business 11.84ms from Atlanta, US
174.163.8.84 AS7922 Comcast Cable Communications, LLC 4.35ms from Atlanta, 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 -m18 202.113.158.185
traceroute to 202.113.158.185 (202.113.158.185): 18 hops max, 52 byte packets
3 [AS174] 154.54.56.89 11.76 ms
4 [AS174] 154.54.30.185 71.045 ms
5 [AS174] 154.54.170.69 380.963 ms
6 [AS174] 154.54.169.178 101.173 ms
7 [AS174] 154.54.29.134 381.084 ms
8 [AS174] 154.54.40.249 114.263 ms
9 [AS174] 154.54.165.26 168.563 ms
10 [AS174] 154.54.166.58 159.535 ms
11 [AS174] 154.54.44.86 136.654 ms
12 [AS174] 154.54.42.102 135.134 ms
13 [AS174] 38.88.196.186 152.293 ms
14 [AS4538] 101.4.117.249 351.527 ms
15 [AS4538] 101.4.114.169 303.022 ms
16 *
17 *
18 *
Measurement taken from IPinfo ProbeNet in London, GB
On

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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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