222.31.208.0/20

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 222.28.0.0/14
Registry APNIC
ID BJR-CERNET

WHOIS Details

inetnum:        222.28.0.0 - 222.31.255.255
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:  2020-09-03T09:16:23Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Center,
address:        FIT-3-220, 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:        abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by:         MAINT-CERNET-AP
last-modified:  2026-03-05T06:39:56Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Center,
address:        FIT-3-220, 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 2026-03-05
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-05T06:40:20Z
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

Overlapping Ranges

BGP prefixes that contain 222.31.208.0/20

Range ASN Company Num of IPs
222.28.0.0/14 AS4538 China Education and Research Network 262,144

Nearby Ranges

BGP prefixes that overlap with 222.31.0.0/16

Range ASN Company Num of IPs
222.28.0.0/14 AS4538 China Education and Research Network 262,144

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

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

IP Address ASN Details
222.31.212.3 AS4538 China Education and Research Network Center 12.11ms from Beijing, CN
222.31.218.136 AS4538 China Education and Research Network Center 12.23ms from Beijing, CN
222.31.220.1 AS4538 China Education and Research Network Center 12.02ms 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
98.19.212.212 AS7029 Windstream Communications LLC 6.65ms from Atlanta, US
181.135.130.100 AS13489 UNE EPM TELECOMUNICACIONES S.A. 13.94ms from Bogota, CO
193.191.182.180 AS2611 BELNET 1.46ms from Brussels, BE
77.179.79.36 AS6805 Telefonica Germany GmbH & Co.OHG 2.38ms from Frankfurt am Main, DE
187.245.199.180 AS13999 Mega Cable, S.A. de C.V. 18.73ms from Guadalajara, MX
120.55.64.52 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.77ms from Hangzhou, CN
213.214.176.68 AS1342 Fujitsu Invia Finland IP-network 1.34ms from Helsinki, FI
148.135.84.4 AS35916 MULTACOM CORPORATION 0.18ms from Los Angeles, US
35.244.248.4 AS396982 Google LLC 0.07ms from Melbourne, AU
187.227.198.84 AS8151 UNINET 10.04ms from Mexico City, MX
185.11.199.36 AS205567 Gemotest Laboratory LLC 1.70ms from Moscow, RU
115.214.165.52 AS4134 CHINANET-BACKBONE 5.60ms from Ningbo, CN
219.211.150.36 AS17676 SoftBank Corp. 4.28ms from Osaka, JP
91.169.135.36 AS12322 Free SAS 1.77ms from Paris, FR
92.53.115.116 AS9123 JSC TIMEWEB 0.72ms from Saint Petersburg, RU
38.108.174.196 AS174 Cogent Communications, LLC 0.98ms from San Jose, US
119.81.37.244 AS36351 IBM Cloud 0.44ms from Singapore, SG
1.34.83.148 AS3462 Data Communication Business Group 3.98ms from Taipei, TW
35.74.135.52 AS16509 Amazon.com, Inc. 0.21ms from Tokyo, JP
124.246.196.20 AS23791 LCV Corporation 8.30ms from Tokyo, JP
204.216.191.100 AS31898 Oracle Corporation 0.14ms from Vinhedo, BR
51.144.240.196 AS8075 Microsoft Corporation 0.22ms from Amsterdam, NL
94.70.238.84 AS6799 Ote SA (Hellenic Telecommunications Organisation) 6.74ms from Athens, GR
85.216.147.68 AS6830 Liberty Global Europe Holding B.V. 5.96ms from Bratislava, SK
20.45.208.148 AS8075 Microsoft Corporation 0.41ms from Des Moines, US

Traceroute

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

$
traceroute -a -n -q1 -f5 -m14 222.31.217.17
traceroute to 222.31.217.17 (222.31.217.17): 14 hops max, 52 byte packets
5 [] 36.255.57.179 1.036 ms
6 *
7 [AS174] 38.150.75.1 3.172 ms
8 [AS4538] 101.4.114.181 36.69 ms
9 *
10 *
11 [AS4538] 101.4.117.18 61.985 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
On

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