101.5.24.0/21

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 101.4.0.0/14
Registry APNIC
ID BJR-CERNET

WHOIS Details

inetnum:        101.4.0.0 - 101.7.255.255
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
remarks:        confederation
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:24Z
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:         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:        http://www.ccert.edu.cn
remarks:        abuse@cernet.edu.cn 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:         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 2025-08-15
abuse-mailbox:  abuse@cernet.edu.cn
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:         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

route:          101.4.0.0/14
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2010-12-13T06:08:01Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 101.5.24.0/21

Range ASN Company Num of IPs
101.4.0.0/14 AS4538 China Education and Research Network 262,144

Nearby Ranges

BGP prefixes that overlap with 101.5.0.0/16

Range ASN Company Num of IPs
101.4.0.0/14 AS4538 China Education and Research Network 262,144

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
101.5.29.117 zhjie.site 1

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

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

IP Address ASN Details
101.5.30.15 AS4538 China Education and Research Network Center 7.19ms from Beijing, CN
101.5.26.222 AS4538 China Education and Research Network Center 5.28ms from Beijing, CN
101.5.27.162 AS4538 China Education and Research Network Center 6.01ms from Beijing, CN
101.5.24.1 AS4538 China Education and Research Network Center 3.31ms from Beijing, CN
101.5.28.203 AS4538 China Education and Research Network Center 5.84ms from Beijing, CN
101.5.29.188 AS4538 China Education and Research Network Center 7.02ms from Beijing, CN
101.5.31.217 AS4538 China Education and Research Network Center 5.00ms from Beijing, CN
101.5.25.26 AS4538 China Education and Research Network Center 6.78ms 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
92.47.111.181 AS9198 JSC Kazakhtelecom 7.63ms from Almaty, KZ
172.211.13.85 AS8075 Microsoft Corporation 0.29ms from Amsterdam, NL
64.67.234.21 AS3737 PenTeleData Inc. 14.75ms from Ashburn, US
13.82.214.117 AS8075 Microsoft Corporation 0.41ms from Ashburn, US
107.211.87.181 AS7018 AT&T Enterprises, LLC 6.88ms from Columbus, US
103.127.181.5 AS138523 Sylhet Communcation Systems Limited 5.09ms from Dhaka, BD
121.196.56.133 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.05ms from Hangzhou, CN
122.229.135.5 AS4134 CHINANET-BACKBONE 7.97ms from Hangzhou, CN
49.130.232.5 AS17924 SmarTone Mobile Communications Ltd 9.76ms from Hong Kong, HK
178.207.126.5 AS28840 PJSC "TATTELECOM" 6.40ms from Kazan, RU
108.95.185.53 AS7018 AT&T Enterprises, LLC 3.75ms from Los Angeles, US
24.191.86.85 AS6128 Cablevision Systems Corp. 9.47ms from New York City, US
23.34.72.37 AS6762 TELECOM ITALIA SPARKLE S.p.A. 0.20ms from Palermo, IT
3.163.33.197 AS16509 Amazon.com, Inc. 0.12ms from Perth, AU
98.239.126.133 AS7922 Comcast Cable Communications, LLC 8.56ms from San Jose, US
134.75.2.5 AS1237 KISTI 1.43ms from Seoul, KR
124.194.132.101 AS3786 LG DACOM Corporation 1.87ms from Seoul, KR
103.174.63.21 AS147095 PT Angkasa Bintan Cemerlang 2.12ms from Singapore, SG
124.19.10.133 AS7474 SingTel Optus Pty Ltd 0.97ms from Sydney, AU
48.210.14.149 AS8075 Microsoft Corporation 0.16ms from Tokyo, JP
207.23.162.149 AS11105 Simon Fraser University 3.14ms from Vancouver, CA
208.228.154.101 AS2703 Data-Prompt, Inc. 2.91ms from Ashburn, US
109.50.231.181 AS2860 NOS COMUNICACOES, S.A. 2.77ms from Braga, PT
177.37.41.101 AS269968 COOPERATIVA AGUA Y SERVICIOS PUBLICOS UNQUILLO MENDIOLAZA LIMITADA 12.99ms from Buenos Aires, AR
41.87.137.101 AS36925 MEDITELECOM 7.04ms from Casablanca, MA

Traceroute

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

$
traceroute -a -n -q1 -f2 101.5.31.40
traceroute to 101.5.31.40 (101.5.31.40): 64 hops max, 52 byte packets
4 [] 110.93.252.172 0.945 ms
5 [] 110.93.252.222 1.145 ms
6 *
7 *
8 *
9 *
10 [AS4538] 101.4.113.201 143.975 ms
11 [AS4538] 202.112.38.2 143.607 ms
12 [AS4538] 118.229.4.74 156.439 ms
13 [AS4538] 118.229.5.2 144.412 ms
14 [AS4538] 118.229.5.106 144.405 ms
15 [AS4538] 101.5.31.40 148.891 ms
Measurement taken from IPinfo ProbeNet in Karachi, PK
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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