AS number details

AS4538

China Education and Research Network Center  ·  tsinghua.edu.cn

AS4538 – China Education and Research Network Center

Country China
Website tsinghua.edu.cn
Hosted domains 6,419
Number of IPs 17,171,200
ASN type Education
Allocated 2 years ago on Sep 03, 2020

IP Address Ranges

Netblock Company Num of IPs
101.4.0.0/14 China Education and Research Network 262,144
101.4.0.0/20 China Education and Research Network 4,096
101.4.128.0/24 China Education and Research Network 256
101.4.140.0/24 China Education and Research Network 256
101.4.156.0/24 China Education and Research Network 256
101.4.16.0/20 China Education and Research Network 4,096
101.4.192.0/18 China Education and Research Network 16,384
101.4.2.0/24 China Education and Research Network 256
101.4.32.0/20 China Education and Research Network 4,096
101.4.48.0/21 China Education and Research Network 2,048
101.4.63.0/24 China Education and Research Network 256
101.4.64.0/20 China Education and Research Network 4,096
101.5.0.0/17 China Education and Research Network 32,768
101.5.128.0/17 China Education and Research Network 32,768
101.6.0.0/17 China Education and Research Network 32,768
101.6.128.0/17 China Education and Research Network 32,768
101.6.6.0/24 China Education and Research Network 256
101.7.0.0/22 China Education and Research Network 1,024
101.7.128.0/18 China Education and Research Network 16,384
101.7.160.0/24 China Education and Research Network 256
101.7.192.0/20 China Education and Research Network 4,096
101.7.208.0/22 China Education and Research Network 1,024
101.7.224.0/20 China Education and Research Network 4,096
101.76.0.0/15 China Education and Research Network 131,072
101.76.0.0/20 China Education and Research Network 4,096
101.76.144.0/20 China Education and Research Network 4,096
101.76.160.0/19 China Education and Research Network 8,192
101.76.16.0/20 China Education and Research Network 4,096
101.76.192.0/18 China Education and Research Network 16,384
101.76.192.0/23 China Education and Research Network 512
101.76.194.0/23 China Education and Research Network 512
101.76.196.0/22 China Education and Research Network 1,024
101.76.200.0/21 China Education and Research Network 2,048
101.76.208.0/20 China Education and Research Network 4,096
101.76.224.0/19 China Education and Research Network 8,192
101.76.32.0/21 China Education and Research Network 2,048
101.76.40.0/21 China Education and Research Network 2,048
101.7.64.0/18 China Education and Research Network 16,384
101.76.48.0/20 China Education and Research Network 4,096
101.76.64.0/19 China Education and Research Network 8,192
101.76.96.0/20 China Education and Research Network 4,096
101.77.0.0/16 China Education and Research Network 65,536
103.137.60.0/24 China Education and Research Network 256
103.165.110.0/23 China Education and Research Network (CERNET) 512
103.252.172.0/22 1699 Zuchongzhi Road 1,024
103.31.48.0/22 Information Center of Shanghai Municipal Education Commission 1,024
110.64.0.0/15 China Education and Research Network 131,072
110.64.0.0/16 China Education and Research Network 65,536
110.64.0.0/20 China Education and Research Network 4,096
110.64.128.0/20 China Education and Research Network 4,096
110.64.148.0/23 China Education and Research Network 512
110.64.151.0/24 China Education and Research Network 256
110.64.152.0/24 China Education and Research Network 256
110.64.153.0/24 China Education and Research Network 256
110.64.160.0/20 China Education and Research Network 4,096
110.64.16.0/21 China Education and Research Network 2,048
110.64.176.0/20 China Education and Research Network 4,096
110.64.192.0/21 China Education and Research Network 2,048
110.64.200.0/22 China Education and Research Network 1,024
110.64.204.0/23 China Education and Research Network 512
110.64.206.0/24 China Education and Research Network 256
110.64.207.0/24 China Education and Research Network 256
110.64.208.0/22 China Education and Research Network 1,024
110.64.212.0/22 China Education and Research Network 1,024
110.64.216.0/21 China Education and Research Network 2,048
110.64.24.0/24 China Education and Research Network 256
110.64.30.0/23 China Education and Research Network 512
110.64.32.0/21 China Education and Research Network 2,048
110.64.48.0/21 China Education and Research Network 2,048
110.64.56.0/22 China Education and Research Network 1,024
110.64.60.0/22 China Education and Research Network 1,024
110.64.64.0/19 China Education and Research Network 8,192
110.64.96.0/19 China Education and Research Network 8,192
110.65.0.0/16 China Education and Research Network 65,536
110.65.0.0/18 China Education and Research Network 16,384
110.65.112.0/23 China Education and Research Network 512
110.65.128.0/22 China Education and Research Network 1,024
110.65.132.0/24 China Education and Research Network 256
110.65.133.0/24 China Education and Research Network 256
110.65.134.0/23 China Education and Research Network 512
110.65.136.0/23 China Education and Research Network 512
110.65.138.0/24 China Education and Research Network 256
110.65.144.0/23 China Education and Research Network 512
110.65.146.0/24 China Education and Research Network 256
110.65.147.0/24 China Education and Research Network 256
110.65.156.0/24 China Education and Research Network 256
110.65.240.0/20 China Education and Research Network 4,096
110.65.64.0/21 China Education and Research Network 2,048
110.65.71.0/24 China Education and Research Network 256
110.65.80.0/20 China Education and Research Network 4,096
110.65.96.0/20 China Education and Research Network 4,096
111.114.0.0/15 China Education and Research Network 131,072
111.114.0.0/18 China Education and Research Network 16,384
111.114.112.0/20 China Education and Research Network 4,096
111.114.128.0/19 China Education and Research Network 8,192
111.114.160.0/19 China Education and Research Network 8,192
111.114.64.0/22 China Education and Research Network 1,024
111.114.80.0/20 China Education and Research Network 4,096
111.114.96.0/20 China Education and Research Network 4,096
111.115.0.0/18 China Education and Research Network 16,384
Netblock Company
2001:250:220::/48 CERNET IPv6 Backbone
2001:252:ff00::/40 CNGI International Gateway Network (CNGIIGN)
2001:da8:257::/48 China Next Generation Internet CERNET2
2001:da8:261::/48 China Next Generation Internet CERNET2
2001:da8:281::/48 China Next Generation Internet CERNET2
2001:da8:283::/48 China Next Generation Internet CERNET2
2400:a980:ee::/48 Beijing, China
240c:c0a1::/32 China Education and Research Network
240c:c0a9:1000::/40 China Education and Research Network
Get all this data and more in JSON format using our ASN API Read More

WHOIS Details

aut-num:        AS4538
as-name:        ERX-CERNET-BKB
descr:          China Education and Research Network Center
descr:          Tsinghua University
descr:          Beijing 100084
country:        CN
remarks:        This aut-num object created as part of
remarks:        the ER-Transfer from ARIN
admin-c:        JW410-AP
tech-c:         JW410-AP
abuse-c:        AC1685-AP
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-by:         APNIC-HM
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:15Z
source:         APNIC


mntner:         APNIC-HM
admin-c:        RTT10-RIPE
upd-to:         roufique@rtat.net
auth:           MD5-PW
auth:           SSO
auth:           SSO
mnt-by:         APNIC-HM
created:        2019-04-09T03:52:39Z
last-modified:  2019-04-20T09:18:19Z
source:         RIPE

person:         Jianping Wu
address:        China Education and Research Network Center
address:        Tsinghua University
address:        Beijing 100084
country:        CN
phone:          +86-10-2595931
e-mail:         jianping@CERNET.EDU.CN
nic-hdl:        JW410-AP
remarks:        This person object created as part of the ER-Transfer from ARIN
mnt-by:         MAINT-CN-CERNET
last-modified:  2008-09-04T07:29:20Z
source:         APNIC
Get all this data and more in JSON format using our ASN API Read More

Hosted Domains

There are 6,419 domain names hosted across 3,112 IP addresses on this ASN.

IP Address Domain Domains on this IP
222.22.22.3 fkjtmh48.bar 1,801
210.29.144.93 qc92ue.tokyo 51
202.112.113.4 0512.org.cn 48
222.29.1.166 doorpicks.com 29
59.74.102.30 937655.com 26
166.111.4.100 tsinghua.edu.cn 24
202.205.161.133 ouchn.net 18
58.154.224.253 alpk.cn 18
210.39.54.167 daq599.com 16
210.36.249.51 863867.com 16
59.74.103.241 zxzq5566.com 16
101.6.6.219 comdyn.cn 16
202.114.0.245 hust.edu.cn 15
202.205.158.85 th-chinaembassyedu.org 14
115.25.209.115 hebeibuy.com 14
59.71.43.102 cicc533.com 12
210.36.95.127 769367.com 12
49.52.103.21 753961.com 12
222.22.2.2 capitaloneu.com 12
59.64.102.13 856995.xyz 12
210.38.224.162 anymore.com.cn 12
121.194.4.12 cnki.net 12
202.38.193.28 scut.edu.cn 12
202.112.35.201 ivi2.org 11
202.114.50.2 whut.edu.cn 11
202.120.58.161 bmnos.tk 11
49.53.217.140 szzq779.com 10
210.36.95.148 963769.com 10
58.205.213.52 xn--48s50dddpvs16aslb695h.xn--czr694b 10
166.111.134.52 antihbv.com 10
202.120.2.198 vsgag.tk 10
59.71.105.34 339363.xyz 10
202.198.16.83 jlu.edu.cn 10
202.117.85.158 cpskill.org 10
125.222.245.200 xn--6frx5av5nwsn5sq720c.net 9
210.36.145.97 593857.com 9
202.120.224.125 fudan.edu.cn 9
58.154.224.183 shimao.net 9
210.36.216.54 jr7579.com 9
121.194.14.142 seu.edu.cn 9
42.247.6.11 aisb.com.cn 8
210.36.54.129 865779.com 8
219.224.31.75 scett.cn 8
211.68.69.240 bupt.edu.cn 8
202.116.64.8 sysu.edu.cn 8
202.205.158.32 cscse.edu.cn 8
210.36.51.219 zy9599.com 8
202.119.32.7 nju.edu.cn 8
202.120.188.98 wangguojian.com 8
203.91.121.21 locationspace.net 8

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

Peers

There are 48 peers for this ASN.

Peers Name
AS1299 Telia Company AB
AS131578 Beijing Foreign Studies University
AS132337 ALPHA NETWORKS SOLUTION
AS133111 CERNET New Technology Co., Ltd
AS133465 Duke Kunshan University
AS138371 CERNET2 regional IX at Ocean University of China
AS138373 CERNET2 regional IX at Fuzhou University
AS138378 CERNET2 regional IX at Yunnan University
AS138393 CERNET2 regional IX at Guangxi University
AS139139 Shenyang Agricultural University
AS174 Cogent Communications
AS23764 CTGNet
AS23910 China Next Generation Internet CERNET2
AS23911 China Next Generation Internet Beijing IX
AS24348 CERNET2 IX at Tsinghua University
AS24349 CERNET2 IX at Peking University
AS24350 CERNET2 IX at Beijing University of Posts and Telecommunications
AS24352 CERNET2 IX at Tianjin University
AS24353 CERNET2 IX at Xi'an Jiaotong University
AS24355 CERNET2 IX at University of Electronic Science and Technology of China
AS24356 CERNET2 IX at Chongqing University
AS24357 CERNET2 IX at South China University of Technology
AS24358 CERNET2 IX at Huazhong University of Science and Technology
AS24361 CERNET2 IX at Southeast University
AS24362 CERNET2 IX at University of Science and Technology of China
AS24363 CERNET2 IX at Shandong University
AS24364 CERNET2 IX at Shanghai Jiaotong University
AS24367 CERNET2 IX at Zhejiang University
AS24369 CERNET2 IX at Northeast University
AS24370 CERNET2 IX at Dalian University of Technology
AS24371 CERNET2 IX at Jilin University
AS24372 CERNET2 IX at Harbin Institute of Technology
AS24482 SG.GS
AS2914 NTT America, Inc.
AS3491 PCCW Global, Inc.
AS36236 NetActuate, Inc
AS39120 Convergenze S.p.A.
AS41095 IPTP LTD
AS4134 CHINANET-BACKBONE
AS4635 Hong Kong Internet Exchange--Route Server 1
AS4789 NAP1 at CERNET
AS4837 CHINA UNICOM China169 Backbone
AS58453 Level 30, Tower 1
AS6453 TATA COMMUNICATIONS (AMERICA) INC
AS6939 Hurricane Electric LLC
AS7497 Computer Network Information Center
AS7660 Asia Pacific Advanced Network - Japan
AS9405 Test platform Service Center
Get all this data and more in JSON format using our ASN API Read More

Upstreams

There are 13 upstreams for this ASN.

upstreams Name
AS1299 Telia Company AB
AS174 Cogent Communications
AS23764 CTGNet
AS23910 China Next Generation Internet CERNET2
AS23911 China Next Generation Internet Beijing IX
AS24348 CERNET2 IX at Tsinghua University
AS2914 NTT America, Inc.
AS3491 PCCW Global, Inc.
AS4789 NAP1 at CERNET
AS4837 CHINA UNICOM China169 Backbone
AS58453 Level 30, Tower 1
AS6453 TATA COMMUNICATIONS (AMERICA) INC
AS6939 Hurricane Electric LLC
Get all this data and more in JSON format using our ASN API Read More

Downstreams

There are 13 downstreams for this ASN.

Downstreams Name
AS131578 Beijing Foreign Studies University
AS133111 CERNET New Technology Co., Ltd
AS133465 Duke Kunshan University
AS139139 Shenyang Agricultural University
AS23910 China Next Generation Internet CERNET2
AS23911 China Next Generation Internet Beijing IX
AS24348 CERNET2 IX at Tsinghua University
AS24355 CERNET2 IX at University of Electronic Science and Technology of China
AS24357 CERNET2 IX at South China University of Technology
AS24358 CERNET2 IX at Huazhong University of Science and Technology
AS24363 CERNET2 IX at Shandong University
AS24364 CERNET2 IX at Shanghai Jiaotong University
AS9405 Test platform Service Center
Get all this data and more in JSON format using our ASN API Read More

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS4538 at robtex.

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