202.205.176.0/20

AS4538  ·  China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        202.204.0.0 - 202.207.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing Regional Network
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:  2020-09-03T09:16:26Z
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 202.205.0.0/16

No nearby ranges found.

Hosted domains

There are 19 domain names hosted across 14 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
202.205.188.134 zhonghuayuwen.org 1
202.205.184.113 bjsp.me 1
202.205.184.4 cedf.org.cn 1
202.205.176.139 youthlink.cn 1

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

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

IP Address ASN Details
202.205.185.212 AS4538 China Education and Research Network Center 3.96ms from Beijing, CN
202.205.184.137 AS4538 China Education and Research Network Center 4.36ms from Beijing, CN
202.205.179.199 AS4538 China Education and Research Network Center 3.38ms from Beijing, CN
202.205.177.16 AS4538 China Education and Research Network Center 4.21ms from Beijing, CN
202.205.178.220 AS4538 China Education and Research Network Center 12.59ms from Beijing, CN
202.205.176.71 AS4538 China Education and Research Network Center 3.42ms from Beijing, CN
202.205.183.250 AS4538 China Education and Research Network Center 5.72ms from Beijing, CN
202.205.188.212 AS4538 China Education and Research Network Center 3.20ms from Beijing, CN
202.205.191.154 AS4538 China Education and Research Network Center 3.07ms 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
82.22.55.4 AS60781 LeaseWeb Netherlands B.V. 0.28ms from Amsterdam, NL
73.73.143.84 AS7922 Comcast Cable Communications, LLC 5.43ms from Chicago, US
52.16.92.228 AS16509 Amazon.com, Inc. 0.17ms from Dublin, IE
39.40.135.164 AS17557 Pakistan Telecommunication Company Limited 14.46ms from Lahore, PK
149.241.188.100 AS5607 Sky UK Limited 2.15ms from London, GB
179.97.113.4 AS28636 CDI TELECOM 8.02ms from Novo Hamburgo, BR
67.8.38.100 AS33363 Charter Communications, Inc 5.67ms from Orlando, US
69.232.98.244 AS7018 AT&T Enterprises, LLC 2.42ms from San Antonio, US
142.0.128.148 AS54600 PEG TECH INC 0.25ms from San Jose, US
124.48.27.164 AS17858 LG POWERCOMM 1.68ms from Seoul, KR
121.188.14.100 AS4766 Korea Telecom 2.69ms from Seoul, KR
112.87.225.164 AS4837 CHINA UNICOM China169 Backbone 6.13ms from Shanghai, CN
178.129.191.100 AS28812 PJSC "Bashinformsvyaz" 8.92ms from Yekaterinburg, RU
164.49.128.132 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
54.245.201.148 AS16509 Amazon.com, Inc. 0.23ms from Boardman, US
94.172.183.244 AS9141 P4 Sp. z o.o. 6.13ms from Gdynia, PL
73.6.29.180 AS7922 Comcast Cable Communications, LLC 4.48ms from Houston, US
88.231.170.244 AS9121 Turk Telekomunikasyon Anonim Sirketi 9.07ms from Istanbul, TR
92.24.159.148 AS13285 TalkTalk Communications Limited 3.04ms from London, GB
146.90.178.244 AS6871 Plusnet 4.89ms from London, GB
66.116.113.228 AS27496 VENETIAN CASINO RESORT, LLC 5.64ms from Los Angeles, US
133.114.221.180 AS2527 Sony Network Communications Inc. 1.46ms from Osaka, JP
87.10.212.164 AS3269 Telecom Italia S.p.A. 2.57ms from Rome, IT
207.193.21.52 AS7018 AT&T Enterprises, LLC 3.49ms from San Antonio, US
149.202.55.52 AS16276 OVH SAS 0.16ms from Strasbourg, FR

Traceroute

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

$
traceroute -a -n -q1 -f6 -m12 202.205.177.16
traceroute to 202.205.177.16 (202.205.177.16): 12 hops max, 52 byte packets
6 [AS4538] 101.4.130.105 4.695 ms
7 *
8 [AS4538] 101.4.118.10 4.435 ms
9 [AS4538] 202.112.6.130 3.965 ms
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Beijing, 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.

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