202.120.0.0/18

AS4538  ·  China Education and Research Network Center

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

Summary

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

WHOIS Details

inetnum:        202.112.0.0 - 202.121.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          China Education and Research Network Center
descr:          Tsinghua University
descr:          Beijing, 100084
country:        CN
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:  2020-09-03T09:16:29Z
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

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 202.120.0.0/16

No nearby ranges found.

Hosted domains

There are 54 domain names hosted across 43 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP

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

2,990 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
202.120.12.172 AS4538 China Education and Research Network Center 1.41ms from Shanghai, CN
202.120.43.65 AS4538 China Education and Research Network Center 1.77ms from Shanghai, CN
202.120.41.109 AS4538 China Education and Research Network Center 1.59ms from Shanghai, CN
202.120.36.21 AS4538 China Education and Research Network Center 1.75ms from Shanghai, CN
202.120.62.204 AS4538 China Education and Research Network Center 1.61ms from Shanghai, CN
202.120.10.24 AS4538 China Education and Research Network Center 1.33ms from Shanghai, CN
202.120.28.140 AS4538 China Education and Research Network Center 1.76ms from Shanghai, CN
202.120.24.106 AS4538 China Education and Research Network Center 1.44ms from Shanghai, CN
202.120.57.134 AS4538 China Education and Research Network Center 1.79ms from Shanghai, CN
202.120.25.65 AS4538 China Education and Research Network Center 1.57ms from Shanghai, CN
202.120.9.11 AS4538 China Education and Research Network Center 1.33ms from Shanghai, CN
202.120.44.220 AS4538 China Education and Research Network Center 1.83ms from Shanghai, CN
202.120.33.245 AS4538 China Education and Research Network Center 1.74ms from Shanghai, CN
202.120.35.153 AS4538 China Education and Research Network Center 1.53ms from Shanghai, CN
202.120.29.125 AS4538 China Education and Research Network Center 1.53ms from Shanghai, CN
202.120.27.254 AS4538 China Education and Research Network Center 2.16ms from Shanghai, CN
202.120.32.105 AS4538 China Education and Research Network Center 1.85ms from Shanghai, CN
202.120.4.110 AS4538 China Education and Research Network Center 1.50ms from Shanghai, CN
202.120.1.232 AS4538 China Education and Research Network Center 1.68ms from Shanghai, CN
202.120.16.165 AS4538 China Education and Research Network Center 1.56ms from Shanghai, CN
202.120.6.251 AS4538 China Education and Research Network Center 1.45ms from Shanghai, CN
202.120.13.118 AS4538 China Education and Research Network Center 1.66ms from Shanghai, CN
202.120.58.251 AS4538 China Education and Research Network Center 1.59ms from Shanghai, CN
202.120.48.68 AS4538 China Education and Research Network Center 1.59ms from Shanghai, CN
202.120.14.254 AS4538 China Education and Research Network Center 1.70ms from Shanghai, 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
118.174.28.50 AS131293 TOT Public Company Limited 2.75ms from Bangkok, TH
177.18.19.226 AS18881 TELEFÔNICA BRASIL S.A 2.01ms from Brasilia, BR
190.49.37.194 AS22927 Telefonica de Argentina 1.80ms from Buenos Aires, AR
198.109.194.114 AS237 Merit Network Inc. 3.06ms from Detroit, US
34.241.204.226 AS16509 Amazon.com, Inc. 0.28ms from Dublin, IE
3.127.106.114 AS16509 Amazon.com, Inc. 0.13ms from Frankfurt am Main, DE
27.71.172.50 AS7552 Viettel Group 9.63ms from Ho Chi Minh City, VN
89.105.111.50 AS39545 Fluidone Ltd. 0.57ms from London, GB
103.158.172.2 AS141281 Max Computer 3.84ms from Mumbai, IN
61.153.253.18 AS4134 CHINANET-BACKBONE 7.21ms from Ningbo, CN
193.71.180.146 AS2116 GLOBALCONNECT AS 2.69ms from Oslo, NO
46.43.124.242 AS51407 Mada Al-Arab General Services Company 1.00ms from Ramallah, PS
189.29.225.2 AS28573 Claro NXT Telecomunicacoes Ltda 9.49ms from Rio de Janeiro, BR
76.22.45.242 AS7922 Comcast Cable Communications, LLC 6.22ms from Seattle, US
74.69.218.194 AS11351 Charter Communications Inc 12.03ms from Secaucus, US
182.172.220.146 AS10036 DLIVE 1.22ms from Seoul, KR
210.98.55.2 AS1237 KISTI 4.39ms from Seoul, KR
221.146.113.50 AS4766 Korea Telecom 1.38ms from Seoul, KR
188.150.19.98 AS1257 Tele2 Sverige AB 0.97ms from Stockholm, SE
136.117.89.98 AS396982 Google LLC 0.12ms from The Dalles, US
221.115.80.114 AS17506 ARTERIA Networks Corporation 0.80ms from Tokyo, JP
150.90.161.114 AS2497 Internet Initiative Japan Inc. 1.53ms from Tokyo, JP
222.141.232.50 AS4837 CHINA UNICOM China169 Backbone 4.96ms from Zhengzhou, CN
77.168.180.210 AS1136 KPN B.V. 2.06ms from Amsterdam, NL
94.20.50.146 AS29049 Delta Telecom Ltd 0.61ms from Baku, AZ

Traceroute

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

$
traceroute -a -n -q1 -f6 202.120.38.135
traceroute to 202.120.38.135 (202.120.38.135): 64 hops max, 52 byte packets
6 [AS4538] 101.4.131.17 13.661 ms
8 [AS4538] 101.4.117.45 13.164 ms
9 [AS4538] 101.4.118.249 9.483 ms
10 *
11 [AS4538] 202.112.27.22 10.255 ms
12 *
13 *
14 *
15 [AS4538] 202.120.38.135 12.196 ms
Measurement taken from IPinfo ProbeNet in Hangzhou, CN
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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs