101.4.0.0/14

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
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:         [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

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

Nearby Ranges

BGP prefixes that overlap with 101.0.0.0/8

Range ASN Company Num of IPs
101.160.0.0/11 AS1221 Telstra Limited 2,097,152
101.16.0.0/12 AS4837 China Unicom Hebei province network 1,048,576
101.144.0.0/12 AS9394 China TieTong Telecommunications Corporation 1,048,576
101.64.0.0/13 AS4837 UNICOM ZheJiang Province Network 524,288
101.224.0.0/13 AS4809 CHINANET SHANGHAI PROVINCE NETWORK 524,288
101.224.0.0/13 AS4811 CHINANET SHANGHAI PROVINCE NETWORK 524,288
101.224.0.0/13 AS4812 CHINANET SHANGHAI PROVINCE NETWORK 524,288
101.112.0.0/13 AS133612 VODAFONE AUSTRALIA PTY LIMITED 524,288
101.112.0.0/13 AS18291 VODAFONE AUSTRALIA PTY LIMITED 524,288
101.136.0.0/14 AS17709 Asia Pacific On-Line Service Inc. 262,144
101.136.0.0/14 AS131591 Asia Pacific On-Line Service Inc. 262,144
101.140.0.0/14 AS17511 OPTAGE Inc. 262,144
101.72.0.0/14 AS4837 China Unicom Hebei province network 262,144
101.204.0.0/14 AS4837 UNICOM Sichuan province network 262,144
101.76.0.0/15 AS4538 China Education and Research Network 131,072
101.42.0.0/15 AS45090 Tencent Cloud Computing (Beijing) Co., Ltd 131,072
101.34.0.0/15 AS45090 Tencent Cloud Computing (Beijing) Co., Ltd 131,072
101.248.0.0/15 AS4134 CHINANET XIZANG PROVINCE NETWORK 131,072
101.108.0.0/15 AS23969 TOT Public Company Limited 131,072
101.132.0.0/15 AS37963 Aliyun Computing Co., LTD 131,072
101.60.0.0/15 AS5607 Sky UK Limited 131,072
101.200.0.0/15 AS37963 Aliyun Computing Co., LTD 131,072
101.37.0.0/16 AS37963 Aliyun Computing Co., LTD 65,536
101.202.0.0/16 AS17878 DREAMMARK1 65,536
101.197.0.0/16 AS55992 Beijing Qihu Technology Company Limited 65,536
101.124.0.0/16 AS131486 Beijing Jingdong 360 Degree E-commerce Co., Ltd. 65,536
101.124.0.0/16 AS23724 Beijing Jingdong 360 Degree E-commerce Co., Ltd. 65,536
101.51.0.0/16 AS23974 TOT Public Company Limited 65,536
101.255.0.0/16 AS38511 PT Remala Abadi 65,536
101.127.0.0/16 AS138345 StarHub Internet Pte Ltd 65,536
101.51.0.0/16 AS23969 TOT Public Company Limited 65,536
101.103.0.0/16 AS1221 Telstra Limited 65,536
101.40.0.0/16 AS4847 Beijing Teletron Telecom Engineering Co., Ltd. 65,536
101.39.0.0/16 AS4847 Beijing GreatWall Broadband Telecom Service Co.,Ltd. 65,536
101.98.0.0/16 AS9790 Two Degrees Mobile Limited 65,536
101.129.0.0/16 AS45075 China Central Television 65,536
101.111.0.0/16 AS9365 its communications Inc. 65,536
101.127.0.0/16 AS55430 StarHub Internet Pte Ltd 65,536
101.127.0.0/16 AS4657 StarHub Internet Pte Ltd 65,536
101.1.128.0/17 AS7522 Pikara(STNet, Incorporated) 32,768
101.33.128.0/17 AS45090 Tencent Cloud Computing (Beijing) Co., Ltd 32,768
101.78.128.0/17 AS9381 HKBN Enterprise Solutions HK Limited 32,768
101.102.128.0/17 AS17676 SoftBank Corp. 32,768
101.110.128.0/17 AS2914 NTT Ltd Japan Corporation 32,768
101.99.128.0/17 AS3605 Kuentos Communications, Inc. 32,768
101.33.128.0/17 AS132203 Tencent Cloud Computing (Beijing) Co., Ltd 32,768
101.100.0.0/17 AS17492 Vector Communications Ltd 32,768
101.36.128.0/17 AS23724 CNISP-Union Technology (Beijing) Co., Ltd 32,768
101.235.0.0/17 AS10036 DLIVE 32,768

Hosted domains

There are 79 domain names hosted across 48 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
101.6.15.68 tbr.net.cn 4
101.4.126.27 dns6.edu.cn 1
101.4.102.151 ipdb.edu.cn 1
101.6.64.235 yumeow.site 1
101.6.65.47 xingcun.tech 1
101.4.62.36 zoom.edu.cn 1
101.4.126.235 dns5.edu.cn 1
101.6.51.153 thu-jczx.top 1
101.4.63.100 cerivi.edu.cn 1
101.4.126.36 time.edu.cn 1
101.4.126.21 ntp.edu.cn 1
101.6.50.104 lead-216.top 1
101.6.41.245 ye3.net 1
101.4.126.12 time.edu.cn 1
101.4.126.67 dns5.edu.cn 1
101.6.49.33 wanluowang.cn 1
101.4.62.35 dns3.edu.cn 1
101.6.64.189 xiao-zy19.top 1
101.4.126.179 dns6.edu.cn 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

9,457 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
101.4.130.157 AS4538 China Education and Research Network Center 2.54ms from Beijing, CN
101.4.16.25 AS4538 China Education and Research Network Center 1.65ms from Beijing, CN
101.5.48.1 AS4538 China Education and Research Network Center 4.19ms from Beijing, CN
101.5.13.23 AS4538 China Education and Research Network Center 5.85ms from Beijing, CN
101.4.100.167 AS4538 China Education and Research Network Center 1.53ms from Guangzhou, CN
101.4.126.231 AS4538 China Education and Research Network Center 0.63ms from Qingdao, CN
101.4.131.161 AS4538 China Education and Research Network Center 1.47ms from Shenzhen, CN
101.5.2.241 AS4538 China Education and Research Network Center 3.91ms from Tianjin, CN
101.5.27.9 AS4538 China Education and Research Network Center 5.74ms from Tianjin, CN
101.4.153.105 AS4538 China Education and Research Network Center 1.58ms from Wuhan, CN
101.4.135.158 AS4538 China Education and Research Network Center 1.05ms from Wuhan, CN
101.5.22.2 AS4538 China Education and Research Network Center 2.25ms from Beijing, CN
101.5.23.250 AS4538 China Education and Research Network Center 6.91ms from Beijing, CN
101.4.102.191 AS4538 China Education and Research Network Center 2.77ms from Beijing, CN
101.5.3.252 AS4538 China Education and Research Network Center 2.05ms from Beijing, CN
101.5.28.158 AS4538 China Education and Research Network Center 5.34ms from Beijing, CN
101.5.11.104 AS4538 China Education and Research Network Center 6.06ms from Beijing, CN
101.5.14.199 AS4538 China Education and Research Network Center 5.50ms from Beijing, CN
101.5.21.253 AS4538 China Education and Research Network Center 5.91ms from Beijing, CN
101.4.32.190 AS4538 China Education and Research Network Center 1.65ms from Beijing, CN
101.4.107.5 AS4538 China Education and Research Network Center 4.33ms from Beijing, CN
101.5.51.92 AS4538 China Education and Research Network Center 8.13ms from Beijing, CN
101.5.44.8 AS4538 China Education and Research Network Center 8.43ms from Beijing, CN
101.5.20.1 AS4538 China Education and Research Network Center 3.65ms from Beijing, CN
101.5.41.58 AS4538 China Education and Research Network Center 6.50ms from Tianjin, 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
216.24.115.14 AS30200 DerbyTech Computer Works 7.47ms from Chicago, US
70.121.23.110 AS11427 Charter Communications Inc 5.33ms from Dallas, US
223.31.156.254 AS9583 Sify Limited 0.69ms from Delhi, IN
184.96.45.254 AS209 CenturyLink Communications, LLC 1.12ms from Denver, US
79.221.146.78 AS3320 Deutsche Telekom AG 4.51ms from Duesseldorf, DE
18.185.183.78 AS16509 Amazon.com, Inc. 0.16ms from Frankfurt am Main, DE
217.236.189.222 AS3320 Deutsche Telekom AG 3.58ms from Hamburg, DE
219.76.155.254 AS4760 HKT Limited 0.76ms from Hong Kong, HK
80.45.17.222 AS13285 TalkTalk Communications Limited 5.60ms from London, GB
158.222.7.62 AS48950 Global Custom Data Limited 0.79ms from London, GB
12.251.57.254 AS7018 AT&T Enterprises, LLC 2.02ms from Los Angeles, US
92.176.127.254 AS12479 Orange Espagne SA 9.05ms from Madrid, ES
92.177.28.62 AS12479 Orange Espagne SA 8.69ms from Madrid, ES
71.34.235.254 AS19901 Brightspeed 2.82ms from Minneapolis, US
187.33.190.254 AS262694 Link Centro de Informatica Ltda. 5.03ms from Osasco, BR
122.6.67.254 AS4134 CHINANET-BACKBONE 5.00ms from Qingdao, CN
183.98.69.254 AS4766 Korea Telecom 1.49ms from Seoul, KR
175.209.4.126 AS4766 Korea Telecom 1.38ms from Seoul, KR
59.24.243.158 AS4766 Korea Telecom 4.67ms from Seoul, KR
175.198.7.254 AS4766 Korea Telecom 0.91ms from Seoul, KR
13.49.218.94 AS16509 Amazon.com, Inc. 0.11ms from Stockholm, SE
194.22.192.126 AS3301 Telia Company AB 5.72ms from Stockholm, SE
61.70.129.254 AS9416 Hoshin Multimedia Center Inc. 4.21ms from Taipei, TW
42.124.239.254 AS10010 TOKAI Communications Corporation 5.86ms from Tokyo, JP
63.159.219.78 AS209 CenturyLink Communications, LLC 1.13ms from Ashburn, US

Traceroute

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

$
traceroute -a -n -q1 -f2 -m16 101.7.6.19
traceroute to 101.7.6.19 (101.7.6.19): 16 hops max, 52 byte packets
5 [AS9931] 61.19.118.9 13.063 ms
7 [AS9931] 202.129.30.225 15.035 ms
8 [AS9931] 202.47.238.57 12.532 ms
9 [AS9931] 202.47.236.98 14.621 ms
10 [AS4651] 122.155.226.65 37.871 ms
11 [AS4651] 61.19.9.66 65.272 ms
12 [] 123.255.91.118 65.046 ms
13 [AS4538] 101.4.114.181 100.417 ms
14 *
15 *
16 *
Measurement taken from IPinfo ProbeNet in Vientiane, LA
On

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