202.38.2.0/23

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Registry APNIC
ID CERNET-CN

WHOIS Details

inetnum:        202.38.2.0 - 202.38.3.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Beijing 100084, China
country:        CN
org:            ORG-CEAR1-AP
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2022-04-01T05:01:15Z
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

Nearby Ranges

BGP prefixes that overlap with 202.38.0.0/16

Range ASN Company Num of IPs
202.38.192.0/18 AS4538 South China University of Technology 16,384
202.38.64.0/19 AS4538 The University of Science and Technology of China 8,192
202.38.8.0/21 AS4808 China Institute of Atomic Energy 2,048
202.38.184.0/21 AS4538 China Education and Research Network 2,048
202.38.180.0/22 AS56268 Northeast Dataa Network Pvt Ltd 1,024
202.38.128.0/23 AS7497 Institute of High Energy Physics 512
202.38.4.0/23 AS212141 IBKR Financial Services AG 512
202.38.140.0/23 AS4538 China Education and Research Network 512
202.38.132.0/23 AS4812 SAIC VOLKSWAGEN AUTOMOTIVE CO.LTD. 512
202.38.152.0/23 AS17964 Beijing Fouth Dimension Telecom Co,Ltd 512
202.38.139.0/24 AS56072 301 Fairfield Road 256
202.38.157.0/24 AS23921 INGDIRECT, Sydney 256
202.38.134.0/24 AS4812 SAIC VOLKSWAGEN AUTOMOTIVE CO.LTD. 256

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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
88.210.3.199 AS216071 SERVERS TECH FZCO 0.24ms from Dronten, NL
113.188.243.151 AS45899 VNPT Corp 5.28ms from Ho Chi Minh City, VN
216.225.251.23 AS13446 Netzero,INC. 2.19ms from Las Vegas, US
192.248.156.199 AS20473 The Constant Company, LLC 0.15ms from London, GB
167.89.120.39 AS11377 SendGrid, Inc. 6.32ms from Los Angeles, US
128.6.45.151 AS46 Rutgers, The State University 1.85ms from New York City, US
35.139.142.119 AS33363 Charter Communications, Inc 7.84ms from Orlando, US
221.162.66.71 AS4766 Korea Telecom 1.89ms from Seoul, KR
106.11.166.247 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 3.73ms from Shanghai, CN
1.179.40.135 AS12975 PALTEL Autonomous System 6.60ms from Tel Aviv, IL
46.161.98.215 AS8585 Crnogorski Telekom a.d.Podgorica 11.09ms from Zagreb, HR
71.69.211.199 AS11426 Charter Communications Inc 9.66ms from Ashburn, US
54.184.235.87 AS16509 Amazon.com, Inc. 0.20ms from Boardman, US
152.203.148.7 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 3.05ms from Bogota, CO
122.136.20.167 AS4837 CHINA UNICOM China169 Backbone 12.12ms from Changchun, CN
222.243.161.119 AS4134 CHINANET-BACKBONE 2.47ms from Changsha, CN
46.101.68.55 AS14061 DigitalOcean, LLC 0.17ms from Frankfurt am Main, DE
3.78.254.55 AS16509 Amazon.com, Inc. 0.48ms from Frankfurt am Main, DE
170.80.113.7 AS266376 CYBERNET TELECOM SERVIÇOS DE INTERNET LTDA - ME 3.83ms from Joao Pessoa, BR
202.138.183.87 AS20940 Akamai International B.V. 12.72ms from Manila, PH
34.129.230.167 AS396982 Google LLC 0.12ms from Melbourne, AU
188.8.29.215 AS3269 Telecom Italia S.p.A. 2.35ms from Rome, IT
124.5.179.247 AS10036 DLIVE 1.71ms from Seoul, KR
108.51.222.39 AS701 Verizon Business 2.92ms from Ashburn, US
213.16.245.231 AS1241 Forthnet 2.22ms from Athens, GR

Traceroute

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

$
traceroute -a -n -q1 -m7 202.38.2.168
traceroute to 202.38.2.168 (202.38.2.168): 7 hops max, 52 byte packets
1 [AS15169] 72.14.239.92 118.74 ms
2 [] 123.255.90.107 122.359 ms
3 [AS174] 38.150.75.1 126.103 ms
4 [AS4538] 101.4.114.181 155.631 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Melbourne, AU
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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