219.223.21.0/24

AS4538  ·  China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        219.222.0.0 - 219.223.255.255
netname:        CERNET-CN
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:        GZR-CERNET
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:52Z
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 219.223.0.0/16

No nearby ranges found.

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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
80.79.100.8 AS21286 KPN B.V. 0.93ms from Amsterdam, NL
107.155.195.120 AS5650 Frontier Communications of America, Inc. 0.26ms from Ashburn, US
216.231.167.8 AS22561 CenturyLink Communications, LLC 10.91ms from Atlanta, US
73.7.174.168 AS7922 Comcast Cable Communications, LLC 4.98ms from Atlanta, US
217.13.126.136 AS24592 ECONOCOM CLOUD SL 0.30ms from Barcelona, ES
101.6.32.8 AS4538 China Education and Research Network Center 2.17ms from Beijing, CN
35.95.6.216 AS16509 Amazon.com, Inc. 0.54ms from Boardman, US
20.110.66.56 AS8075 Microsoft Corporation 0.28ms from Boydton, US
154.180.244.24 AS8452 TE-AS 7.41ms from Cairo, EG
62.169.28.88 AS51167 Contabo GmbH 0.19ms from Lauterbourg, FR
86.183.64.184 AS2856 British Telecommunications PLC 4.03ms from London, GB
189.156.10.232 AS8151 UNINET 1.90ms from Monterrey, MX
179.245.204.24 AS26599 TELEFÔNICA BRASIL S.A 9.42ms from Novo Hamburgo, BR
187.233.199.8 AS8151 UNINET 12.10ms from Santiago de Queretaro, MX
210.130.176.136 AS2497 Internet Initiative Japan Inc. 7.54ms from Tokyo, JP
42.236.2.152 AS4837 CHINA UNICOM China169 Backbone 1.75ms from Zhengzhou, CN
116.205.32.104 AS55990 Huawei Cloud Service data center 4.06ms from Beijing, CN
181.118.237.216 AS19889 Cooperativa Telefonica Del Viso 1.27ms from Buenos Aires, AR
20.13.132.152 AS8075 Microsoft Corporation 0.17ms from Dublin, IE
5.40.88.184 AS6739 VODAFONE ONO, S.A. 11.05ms from Madrid, ES
81.254.37.120 AS3215 Orange S.A. 13.52ms from Paris, FR
71.80.253.248 AS20115 Charter Communications LLC 6.55ms from San Jose, US
210.147.199.136 AS2518 BIGLOBE Inc. 2.60ms from Tokyo, JP
153.167.6.136 AS4713 NTT DOCOMO BUSINESS,Inc. 2.94ms from Tokyo, JP
153.147.126.136 AS4713 NTT DOCOMO BUSINESS,Inc. 17.30ms 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 -m21 219.223.21.157
traceroute to 219.223.21.157 (219.223.21.157): 21 hops max, 52 byte packets
1 [AS7195] 200.25.47.17 0.188 ms
2 *
3 *
4 [AS9304] 198.32.243.206 168.477 ms
5 [AS58453] 223.118.10.2 220.757 ms
6 [AS58453] 223.120.6.1 221.77 ms
7 *
8 [] 123.255.91.118 384.117 ms
9 [AS4538] 101.4.114.181 418.382 ms
10 *
11 [AS4538] 101.4.117.81 412.901 ms
12 *
13 [AS4538] 101.4.112.37 337.158 ms
14 *
15 *
16 [AS4538] 101.4.117.94 445.926 ms
17 *
18 [AS4538] 218.192.242.245 454.168 ms
19 *
20 *
21 *
Measurement taken from IPinfo ProbeNet in Lima, PE
On

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