219.221.240.0/20

AS4538  ·  China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        219.221.0.0 - 219.221.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Chengdu 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:  2020-10-20T00:56:53Z
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 219.221.0.0/16

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

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

IP Address ASN Details
219.221.240.254 AS4538 China Education and Research Network Center 56.37ms from Chengdu, 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
87.233.68.132 AS15703 TrueServer BV AS number 0.46ms from Amsterdam, NL
94.225.161.100 AS6848 Telenet BV 5.54ms from Brussels, BE
142.161.114.68 AS7122 Bell Canada 16.31ms from Chicago, US
174.100.218.228 AS10796 Charter Communications Inc 9.89ms from Cleveland, US
4.208.58.20 AS8075 Microsoft Corporation 0.17ms from Dublin, IE
122.156.43.244 AS4837 CHINA UNICOM China169 Backbone 7.58ms from Harbin, CN
132.155.57.36 AS41701 Capgemini Finland Oy 1.52ms from Helsinki, FI
119.187.200.84 AS4837 CHINA UNICOM China169 Backbone 6.76ms from Jinan, CN
47.6.89.68 AS20115 Charter Communications LLC 7.40ms from Los Angeles, US
68.168.17.132 AS40065 CNSERVERS LLC 0.27ms from Los Angeles, US
37.14.159.20 AS12479 Orange Espagne SA 10.46ms from Marseille, FR
173.44.51.212 AS20473 The Constant Company, LLC 0.48ms from Miami, US
65.2.137.36 AS16509 Amazon.com, Inc. 0.15ms from Mumbai, IN
211.135.59.180 AS9617 JCOM Co., Ltd. 7.92ms from Osaka, JP
46.152.124.68 AS35819 Etihad Etisalat, a joint stock company 2.94ms from Riyadh, SA
195.120.53.212 AS3269 Telecom Italia S.p.A. 9.43ms from Rome, IT
177.102.91.20 AS27699 TELEFÔNICA BRASIL S.A 5.07ms from Sao Paulo, BR
211.224.205.100 AS4766 Korea Telecom 4.32ms from Seoul, KR
119.202.32.52 AS4766 Korea Telecom 5.98ms from Seoul, KR
23.10.15.52 AS16625 Akamai Technologies, Inc. 0.15ms from Tokyo, JP
126.38.178.68 AS17676 SoftBank Corp. 6.90ms from Tokyo, JP
173.32.233.52 AS812 Rogers Communications Canada Inc. 2.05ms from Toronto, CA
178.90.127.20 AS9198 JSC Kazakhtelecom 2.13ms from Almaty, KZ
154.57.150.4 AS174 Cogent Communications, LLC 0.42ms from Amsterdam, NL
99.85.40.36 AS7018 AT&T Enterprises, LLC 6.00ms from Atlanta, US

Traceroute

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

$
traceroute -a -n -q1 -m20 219.221.246.246
traceroute to 219.221.246.246 (219.221.246.246): 20 hops max, 52 byte packets
1 [AS39020] 151.236.23.1 41.849 ms
2 *
3 *
4 *
5 *
6 [] 79.139.1.21 48.495 ms
7 [AS23764] 5.154.154.25 41.765 ms
8 [AS23764] 5.154.156.110 38.323 ms
9 [AS4134] 202.97.76.33 217.568 ms
10 *
11 *
12 *
13 *
14 [AS4134] 202.97.118.126 331.449 ms
15 [AS4538] 101.4.115.122 320.097 ms
16 [AS4538] 101.4.116.198 338.897 ms
17 [AS4538] 101.4.116.186 390.646 ms
18 *
19 *
20 *
Measurement taken from IPinfo ProbeNet in Sevilla, ES
On

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