222.204.240.0/20

AS4538  ·  China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        222.204.0.0 - 222.205.255.255
netname:        SHR-CERNET
descr:          China Education and Research Network
descr:          Shanghai Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:17Z
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 222.204.0.0/16

No nearby ranges found.

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
222.204.244.230 lflab.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

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

IP Address ASN Details
222.204.245.84 AS4538 China Education and Research Network Center 4.94ms from Shanghai, CN
222.204.243.50 AS4538 China Education and Research Network Center 5.01ms from Shanghai, CN
222.204.251.61 AS4538 China Education and Research Network Center 4.83ms from Shanghai, CN
222.204.242.118 AS4538 China Education and Research Network Center 4.76ms from Shanghai, CN
222.204.241.104 AS4538 China Education and Research Network Center 4.69ms from Shanghai, CN
222.204.248.124 AS4538 China Education and Research Network Center 5.07ms from Shanghai, CN
222.204.244.247 AS4538 China Education and Research Network Center 4.65ms from Shanghai, CN
222.204.250.30 AS4538 China Education and Research Network Center 4.51ms from Shanghai, CN
222.204.246.71 AS4538 China Education and Research Network Center 4.76ms from Shanghai, CN
222.204.247.15 AS4538 China Education and Research Network Center 5.11ms from Shanghai, CN
222.204.240.205 AS4538 China Education and Research Network Center 4.54ms from Shanghai, CN
222.204.253.252 AS4538 China Education and Research Network Center 4.89ms 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
144.217.243.132 AS16276 OVH SAS 0.15ms from Beauharnois, CA
97.70.176.228 AS33363 Charter Communications, Inc 12.93ms from Chicago, US
68.60.155.228 AS7922 Comcast Cable Communications, LLC 9.97ms from Flint, US
79.221.36.20 AS3320 Deutsche Telekom AG 5.13ms from Hamburg, DE
3.162.55.196 AS16509 Amazon.com, Inc. 0.28ms from Ho Chi Minh City, VN
155.102.232.212 AS24429 Zhejiang Taobao Network Co.,Ltd 19.21ms from Jeddah, SA
197.243.101.100 AS37228 KT RWANDA NETWORK Ltd 0.47ms from Kigali, RW
91.232.124.4 AS59778 Synextra Limited 6.03ms from London, GB
20.117.80.244 AS8075 Microsoft Corporation 0.19ms from London, GB
98.147.202.84 AS20001 Charter Communications Inc 7.01ms from Los Angeles, US
24.39.209.164 AS11351 Charter Communications Inc 13.37ms from New York City, US
119.165.2.100 AS4837 CHINA UNICOM China169 Backbone 1.14ms from Qingdao, CN
115.141.48.52 AS17858 LG POWERCOMM 1.91ms from Seoul, KR
111.229.211.20 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.89ms from Shanghai, CN
52.77.161.36 AS16509 Amazon.com, Inc. 0.10ms from Singapore, SG
136.117.92.116 AS396982 Google LLC 0.14ms from The Dalles, US
123.15.86.132 AS4837 CHINA UNICOM China169 Backbone 5.65ms from Zhengzhou, CN
52.83.109.132 AS135629 Ningxia West Cloud Data Technology Co.Ltd. 0.47ms from Zhongwei, CN
65.182.141.68 AS33067 Classic South Communications, L.L.C. 7.61ms from Atlanta, US
44.243.234.100 AS16509 Amazon.com, Inc. 0.30ms from Boardman, US
109.185.47.20 AS8926 Moldtelecom SA 4.98ms from Chisinau, MD
45.155.38.228 AS395092 Shock Hosting LLC 0.10ms from Coventry, GB
1.6.9.20 AS9583 Sify Limited 0.64ms from Delhi, IN
123.31.53.4 AS45899 VNPT Corp 4.84ms from Ho Chi Minh City, VN
46.250.26.164 AS34661 BREEZE NETWORK 6.99ms from Kyiv, UA

Traceroute

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

$
traceroute -a -n -q1 -f4 -m11 222.204.255.158
traceroute to 222.204.255.158 (222.204.255.158): 11 hops max, 52 byte packets
4 [] 89.44.212.80 0.388 ms
5 *
6 *
7 [AS174] 38.150.75.1 1.365 ms
8 [AS4538] 101.4.114.181 36.054 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
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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