222.203.0.0/19

AS4538  ·  China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        222.200.0.0 - 222.203.255.255
netname:        GZR-CERNET
descr:          China Education and Research Network
descr:          Guangzhou 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:  2020-09-03T09:16:13Z
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

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

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

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

IP Address ASN Details
222.203.21.61 AS4538 China Education and Research Network Center 19.27ms from Guangzhou, CN
222.203.23.175 AS4538 China Education and Research Network Center 19.73ms from Guangzhou, CN
222.203.16.21 AS4538 China Education and Research Network Center 20.09ms from Guangzhou, CN
222.203.10.166 AS4538 China Education and Research Network Center 19.34ms from Guangzhou, CN
222.203.17.239 AS4538 China Education and Research Network Center 19.93ms from Guangzhou, CN
222.203.7.16 AS4538 China Education and Research Network Center 19.77ms from Guangzhou, CN
222.203.26.67 AS4538 China Education and Research Network Center 20.19ms from Guangzhou, CN
222.203.4.82 AS4538 China Education and Research Network Center 19.24ms from Guangzhou, CN
222.203.31.191 AS4538 China Education and Research Network Center 18.72ms from Guangzhou, CN
222.203.20.77 AS4538 China Education and Research Network Center 19.78ms from Guangzhou, CN
222.203.3.99 AS4538 China Education and Research Network Center 19.94ms from Guangzhou, CN
222.203.5.5 AS4538 China Education and Research Network Center 19.24ms from Guangzhou, CN
222.203.0.7 AS4538 China Education and Research Network Center 20.42ms from Guangzhou, CN
222.203.27.239 AS4538 China Education and Research Network Center 21.11ms from Guangzhou, CN
222.203.8.58 AS4538 China Education and Research Network Center 19.25ms from Guangzhou, 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
92.96.40.211 AS5384 Emirates Internet 3.58ms from Al Fujairah City, AE
42.247.20.195 AS4538 China Education and Research Network Center 2.61ms from Beijing, CN
81.169.139.115 AS6724 Strato GmbH 0.51ms from Berlin, DE
190.225.231.3 AS7303 Telecom Argentina S.A. 1.51ms from Buenos Aires, AR
64.12.224.179 AS14210 Edgecast Inc. 1.17ms from Cincinnati, US
76.187.8.83 AS11427 Charter Communications Inc 4.55ms from Dallas, US
212.102.239.131 AS15415 Oberberg-Online Informationssysteme GmbH 5.04ms from Duesseldorf, DE
62.227.84.211 AS3320 Deutsche Telekom AG 2.06ms from Duesseldorf, DE
79.230.165.195 AS3320 Deutsche Telekom AG 6.73ms from Duesseldorf, DE
34.150.39.51 AS396982 Google LLC 0.11ms from Hong Kong, HK
41.135.205.83 AS20011 Dimension Data 10.99ms from Johannesburg, ZA
76.171.198.19 AS20001 Charter Communications Inc 6.55ms from Los Angeles, US
92.31.157.99 AS13285 TalkTalk Communications Limited 2.65ms from Manchester, GB
92.18.165.19 AS13285 TalkTalk Communications Limited 5.97ms from Manchester, GB
115.46.122.51 AS4837 CHINA UNICOM China169 Backbone 6.05ms from Nanning, CN
83.172.18.51 AS56981 JSC "ER-Telecom Holding" 4.46ms from Novosibirsk, RU
84.191.47.227 AS3320 Deutsche Telekom AG 4.29ms from Nuernberg, DE
87.175.35.227 AS3320 Deutsche Telekom AG 7.51ms from Nuernberg, DE
115.38.21.195 AS18126 Chubu Telecommunications Company, Inc. 7.74ms from Osaka, JP
86.38.214.51 AS209242 Cloudflare London, LLC 0.12ms from Porto Alegre, BR
60.215.166.83 AS4837 CHINA UNICOM China169 Backbone 10.91ms from Qingdao, CN
76.191.156.51 AS46375 Sonic Telecom LLC 1.89ms from San Jose, US
126.76.22.195 AS17676 SoftBank Corp. 3.32ms from Tokyo, JP
133.163.131.147 AS2510 FUJITSU LIMITED 4.87ms from Tokyo, JP
153.206.83.67 AS4713 NTT Communications Corporation 3.21ms from Tokyo, JP

Traceroute

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

$
traceroute -a -n -q1 -f8 -m23 222.203.13.125
traceroute to 222.203.13.125 (222.203.13.125): 23 hops max, 52 byte packets
8 [AS3356] 4.71.141.82 163.226 ms
9 *
10 *
11 *
12 [AS4538] 101.4.114.181 245.143 ms
13 *
14 [AS4538] 101.4.117.81 241.868 ms
15 [AS4538] 101.4.112.66 253.233 ms
16 [AS4538] 101.4.112.37 265.378 ms
17 [AS4538] 101.4.117.34 278.527 ms
18 [AS4538] 101.4.118.154 289.994 ms
19 *
20 [AS4538] 101.4.114.73 288.993 ms
21 *
22 *
23 *
Measurement taken from IPinfo ProbeNet in Chicago, US
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.

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