219.242.24.0/21

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 219.242.0.0/15
Registry APNIC
ID CERNET-CN

WHOIS Details

inetnum:        219.242.0.0 - 219.243.255.255
netname:        CERNET-CN
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
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:47Z
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 219.242.24.0/21

Range ASN Company Num of IPs
219.242.0.0/15 AS4538 China Education and Research Network 131,072

Nearby Ranges

BGP prefixes that overlap with 219.242.0.0/16

Range ASN Company Num of IPs
219.242.0.0/15 AS4538 China Education and Research Network 131,072

Hosted domains

There are 2 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
219.242.31.154 chinawomenlibrary.com 2

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
219.242.28.161 AS4538 China Education and Research Network Center 3.10ms from Beijing, CN
219.242.31.1 AS4538 China Education and Research Network Center 3.54ms 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
73.40.226.117 AS7922 Comcast Cable Communications, LLC 12.02ms from Ashburn, US
84.198.93.101 AS6848 Telenet BV 4.60ms from Brussels, BE
216.201.57.197 AS7106 Com Net, Inc. 0.54ms from Columbus, US
122.161.134.229 AS24560 Bharti Airtel Ltd., Telemedia Services 9.72ms from Delhi, IN
20.105.80.101 AS8075 Microsoft Corporation 0.14ms from Dublin, IE
138.249.124.165 AS51396 Pfcloud UG 0.61ms from Frankfurt am Main, DE
122.233.23.53 AS4134 CHINANET-BACKBONE 8.09ms from Hangzhou, CN
86.139.180.21 AS2856 British Telecommunications PLC 1.93ms from London, GB
217.155.125.229 AS13037 Zen Internet Ltd 1.44ms from Manchester, GB
67.130.246.53 AS209 CenturyLink Communications, LLC 13.34ms from Minneapolis, US
185.13.114.69 AS29069 PJSC Rostelecom 1.31ms from Moscow, RU
197.139.20.5 AS36914 Kenya Education Network 6.87ms from Nairobi, KE
80.132.109.245 AS3320 Deutsche Telekom AG 4.38ms from Nuernberg, DE
49.194.150.213 AS4804 Microplex PTY LTD 2.58ms from Perth, AU
35.199.124.213 AS396982 Google LLC 0.11ms from Sao Paulo, BR
112.180.5.229 AS4766 Korea Telecom 6.88ms from Seoul, KR
210.243.138.245 AS4780 Digital United Inc. 2.19ms from Taipei, TW
126.37.47.101 AS17676 SoftBank Corp. 5.21ms from Tokyo, JP
122.10.158.21 AS21859 Zenlayer Inc 0.17ms from Tokyo, JP
23.200.11.197 AS20940 Akamai International B.V. 0.21ms from Warsaw, PL
77.174.67.133 AS1136 KPN B.V. 2.48ms from Amsterdam, NL
70.191.209.181 AS22773 Cox Communications Inc. 18.41ms from Atlanta, US
73.69.185.69 AS7922 Comcast Cable Communications, LLC 10.98ms from Boston, US
218.27.92.69 AS4837 CHINA UNICOM China169 Backbone 3.14ms from Changchun, CN
94.18.188.101 AS31027 GlobalConnect A/S 0.72ms 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 -f6 219.242.28.155
traceroute to 219.242.28.155 (219.242.28.155): 64 hops max, 52 byte packets
6 [AS4538] 101.4.130.105 7.043 ms
7 *
8 *
9 [AS4538] 101.4.112.98 3.787 ms
10 [AS4538] 101.4.113.229 5.241 ms
11 [AS4538] 202.112.38.78 5.385 ms
12 [AS4538] 219.242.31.2 3.623 ms
13 [AS4538] 219.242.28.155 4.234 ms
Measurement taken from IPinfo ProbeNet in Beijing, CN
On

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