101.5.0.0/16

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:         [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

Overlapping Ranges

BGP prefixes that contain 101.5.0.0/16

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 101.0.0.0/8

Range ASN Company Num of IPs
101.160.0.0/11 AS1221 Telstra Limited 2,097,152
101.144.0.0/12 AS9394 China TieTong Telecommunications Corporation 1,048,576
101.16.0.0/12 AS4837 China Unicom Hebei province network 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 AS4812 CHINANET SHANGHAI PROVINCE NETWORK 524,288
101.224.0.0/13 AS4811 CHINANET SHANGHAI PROVINCE NETWORK 524,288
101.112.0.0/13 AS18291 VODAFONE AUSTRALIA PTY LIMITED 524,288
101.112.0.0/13 AS133612 VODAFONE AUSTRALIA PTY LIMITED 524,288
101.140.0.0/14 AS17511 OPTAGE Inc. 262,144
101.136.0.0/14 AS131591 Asia Pacific On-Line Service Inc. 262,144
101.136.0.0/14 AS17709 Asia Pacific On-Line Service Inc. 262,144
101.4.0.0/14 AS4538 China Education and Research Network 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
101.42.0.0/15 AS45090 Tencent Cloud Computing (Beijing) Co., Ltd 131,072
101.60.0.0/15 AS5607 Sky UK Limited 131,072
101.34.0.0/15 AS45090 Tencent Cloud Computing (Beijing) Co., Ltd 131,072
101.76.0.0/15 AS4538 China Education and Research Network 131,072
101.248.0.0/15 AS4134 CHINANET XIZANG PROVINCE NETWORK 131,072
101.132.0.0/15 AS37963 Aliyun Computing Co., LTD 131,072
101.200.0.0/15 AS37963 Aliyun Computing Co., LTD 131,072
101.108.0.0/15 AS23969 TOT Public Company Limited 131,072
101.124.0.0/16 AS131486 Beijing Jingdong 360 Degree E-commerce Co., Ltd. 65,536
101.202.0.0/16 AS17878 DREAMMARK1 65,536
101.255.0.0/16 AS38511 PT Remala Abadi 65,536
101.37.0.0/16 AS37963 Aliyun Computing 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 AS23969 TOT Public Company Limited 65,536
101.51.0.0/16 AS23974 TOT Public Company Limited 65,536
101.127.0.0/16 AS138345 StarHub Internet Pte Ltd 65,536
101.103.0.0/16 AS1221 Telstra Limited 65,536
101.111.0.0/16 AS9365 its communications Inc. 65,536
101.98.0.0/16 AS9790 Two Degrees Mobile Limited 65,536
101.39.0.0/16 AS4847 Beijing GreatWall Broadband Telecom Service Co.,Ltd. 65,536
101.129.0.0/16 AS45075 China Central Television 65,536
101.40.0.0/16 AS4847 Beijing Teletron Telecom Engineering Co., Ltd. 65,536
101.197.0.0/16 AS55992 Beijing Qihu Technology Company Limited 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
101.78.128.0/17 AS9381 HKBN Enterprise Solutions HK Limited 32,768
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
101.100.0.0/17 AS17492 Vector Communications Ltd 32,768
101.102.128.0/17 AS17676 SoftBank Corp. 32,768
101.33.128.0/17 AS132203 Tencent Cloud Computing (Beijing) Co., Ltd 32,768
101.99.128.0/17 AS3605 Kuentos Communications, Inc. 32,768
101.110.128.0/17 AS2914 NTT Ltd Japan Corporation 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 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
101.5.102.228 tsinghua-uedhpc.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

7,643 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
101.5.170.152 AS4538 China Education and Research Network Center 3.90ms from Beijing, CN
101.5.97.133 AS4538 China Education and Research Network Center 5.05ms from Beijing, CN
101.5.40.1 AS4538 China Education and Research Network Center 3.24ms from Beijing, CN
101.5.166.226 AS4538 China Education and Research Network Center 6.11ms from Beijing, CN
101.5.128.1 AS4538 China Education and Research Network Center 4.07ms from Beijing, CN
101.5.16.1 AS4538 China Education and Research Network Center 3.39ms from Beijing, CN
101.5.205.20 AS4538 China Education and Research Network Center 4.85ms from Beijing, CN
101.5.218.47 AS4538 China Education and Research Network Center 5.93ms from Beijing, CN
101.5.11.104 AS4538 China Education and Research Network Center 6.05ms from Beijing, CN
101.5.88.1 AS4538 China Education and Research Network Center 3.76ms from Beijing, CN
101.5.52.1 AS4538 China Education and Research Network Center 4.84ms from Beijing, CN
101.5.109.165 AS4538 China Education and Research Network Center 6.84ms from Beijing, CN
101.5.7.30 AS4538 China Education and Research Network Center 2.25ms from Beijing, CN
101.5.210.1 AS4538 China Education and Research Network Center 4.92ms from Beijing, CN
101.5.116.49 AS4538 China Education and Research Network Center 6.57ms from Tianjin, CN
101.5.181.209 AS4538 China Education and Research Network Center 5.26ms from Tianjin, CN
101.5.161.4 AS4538 China Education and Research Network Center 5.24ms from Tianjin, CN
101.5.179.43 AS4538 China Education and Research Network Center 5.14ms from Tianjin, CN
101.5.90.36 AS4538 China Education and Research Network Center 22.32ms from Zhengzhou, CN
101.5.188.189 AS4538 China Education and Research Network Center 3.76ms from Beijing, CN
101.5.221.107 AS4538 China Education and Research Network Center 5.57ms from Beijing, CN
101.5.119.143 AS4538 China Education and Research Network Center 4.07ms from Beijing, CN
101.5.91.240 AS4538 China Education and Research Network Center 6.05ms from Beijing, CN
101.5.154.185 AS4538 China Education and Research Network Center 4.99ms from Beijing, CN
101.5.28.203 AS4538 China Education and Research Network Center 5.87ms 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
190.86.36.160 AS14754 TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA 8.73ms from Guatemala City, GT
114.97.105.16 AS4134 CHINANET-BACKBONE 10.67ms from Huai'an, CN
84.235.193.0 AS31898 Oracle Corporation 0.16ms from Jerusalem, IL
86.134.94.48 AS2856 British Telecommunications PLC 2.79ms from London, GB
66.120.62.64 AS7018 AT&T Enterprises, LLC 2.25ms from Los Angeles, US
177.20.228.192 AS53240 Net Onze Provedor de Acesso a Internet Eireli 4.42ms from Porto Alegre, BR
61.253.178.160 AS9318 SK Broadband Co Ltd 2.26ms from Seoul, KR
116.232.98.16 AS4812 China Telecom (Group) 3.24ms from Shanghai, CN
106.72.129.0 AS2516 KDDI CORPORATION 3.00ms from Tokyo, JP
121.116.43.192 AS4713 NTT DOCOMO BUSINESS,Inc. 8.80ms from Tokyo, JP
108.48.83.208 AS701 Verizon Business 2.52ms from Ashburn, US
73.163.146.0 AS7922 Comcast Cable Communications, LLC 6.70ms from Ashburn, US
109.134.149.0 AS5432 Proximus NV 1.14ms from Brussels, BE
3.128.63.128 AS16509 Amazon.com, Inc. 0.19ms from Columbus, US
113.190.153.96 AS45899 VNPT Corp 1.34ms from Hanoi, VN
27.197.199.144 AS4837 CHINA UNICOM China169 Backbone 7.71ms from Qingdao, CN
24.139.171.48 AS14638 Liberty Communications of Puerto Rico LLC 12.16ms from San Juan, PR
71.231.20.240 AS7922 Comcast Cable Communications, LLC 8.87ms from Seattle, US
119.202.154.112 AS4766 Korea Telecom 6.04ms from Seoul, KR
109.64.61.48 AS8551 Bezeq International Ltd. 2.08ms from Tel Aviv, IL
54.250.206.112 AS16509 Amazon.com, Inc. 0.26ms from Tokyo, JP
180.51.59.192 AS4713 NTT DOCOMO BUSINESS,Inc. 10.30ms from Tokyo, JP
153.185.71.128 AS4713 NTT DOCOMO BUSINESS,Inc. 2.90ms from Tokyo, JP
42.237.200.208 AS4837 CHINA UNICOM China169 Backbone 5.79ms from Zhengzhou, CN
97.177.65.48 AS6167 Verizon Business 18.84ms from Boston, US

Traceroute

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

$
traceroute -a -n -q1 -f4 -m11 101.5.251.234
traceroute to 101.5.251.234 (101.5.251.234): 11 hops max, 52 byte packets
5 [] 110.93.254.98 21.015 ms
6 [] 110.93.252.222 28.202 ms
7 [] 123.255.91.118 129.863 ms
8 [AS4538] 101.4.114.181 164.914 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Islamabad, PK
On

What are IP address ranges?

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