219.231.216.0/21

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:        219.230.0.0 - 219.231.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Nanjing Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:27Z
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 219.231.0.0/16

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

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

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

IP Address ASN Details
219.231.219.117 AS4538 China Education and Research Network Center 13.18ms from Qingdao, CN
219.231.222.108 AS4538 China Education and Research Network Center 14.05ms from Qingdao, CN
219.231.223.93 AS4538 China Education and Research Network Center 13.53ms from Qingdao, CN
219.231.221.129 AS4538 China Education and Research Network Center 13.21ms from Qingdao, 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
81.4.108.149 AS198203 RouteLabel V.O.F. 1.86ms from Amsterdam, NL
110.229.128.165 AS4837 CHINA UNICOM China169 Backbone 10.18ms from Beijing, CN
99.122.252.149 AS7018 AT&T Enterprises, LLC 1.30ms from Chicago, US
166.78.174.229 AS33070 Rackspace Hosting 0.88ms from Dallas, US
92.116.71.213 AS8881 1&1 Versatel GmbH 2.42ms from Duesseldorf, DE
157.157.243.165 AS6677 Mila hf 5.34ms from Hafnarfjoerdur, IS
82.11.7.37 AS5089 Virgin Media Limited 6.98ms from London, GB
109.168.69.181 AS5602 Retelit Digital Services S.p.A. 0.30ms from Milan, IT
179.26.112.165 AS6057 Administracion Nacional de Telecomunicaciones 1.56ms from Montevideo, UY
151.248.124.149 AS197695 "Domain names registrar REG.RU", Ltd 0.74ms from Moscow, RU
94.181.133.69 AS41754 JSC "ER-Telecom Holding" 11.00ms from Moscow, RU
188.66.243.245 AS50010 Omani Qatari Telecommunication Company SAOC 4.20ms from Muscat, OM
61.160.72.69 AS4134 CHINANET-BACKBONE 3.35ms from Nanjing, CN
69.18.222.53 AS21886 Ricoh USA, Inc. 2.23ms from New York City, US
121.85.120.21 AS17511 OPTAGE Inc. 1.98ms from Osaka, JP
217.108.41.181 AS3215 Orange S.A. 6.00ms from Paris, FR
65.74.139.149 AS17018 Quality Technology Services, LLC 3.77ms from San Jose, US
67.182.169.149 AS7922 Comcast Cable Communications, LLC 10.48ms from Santa Clara, US
100.1.145.181 AS701 Verizon Business 3.09ms from Secaucus, US
175.194.68.245 AS4766 Korea Telecom 1.77ms from Seoul, KR
140.78.48.101 AS1205 University Linz 3.37ms from Vienna, AT
132.220.132.213 AS8075 Microsoft Corporation 0.25ms from Amsterdam, NL
27.12.129.149 AS4837 CHINA UNICOM China169 Backbone 7.98ms from Chongqing, CN
107.9.9.197 AS10796 Charter Communications Inc 9.64ms from Columbus, US
80.63.71.213 AS3292 TDC Holding A/S 0.79ms from Copenhagen, DK

Traceroute

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

$
traceroute -a -n -q1 -m9 219.231.217.30
traceroute to 219.231.217.30 (219.231.217.30): 9 hops max, 52 byte packets
1 [AS15169] 142.251.49.143 230.543 ms
2 [AS15169] 142.251.232.84 232.807 ms
3 [] 36.255.57.179 197.281 ms
4 *
5 [AS174] 38.150.75.1 200.672 ms
6 [AS4538] 101.4.114.181 237.737 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Brussels, BE
On

What are IP address ranges?

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