AS number details

AS4538

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

  • bittorrent

AS4538 – China Education and Research Network Center

Field Value
Country China
Website cernet.edu.cn
Hosted domains 2,730
Number of IPv4 17,175,296
Number of IPv6 326,501,847,240,388,949,758,686,839,963,648
ASN type Education
Registry apnic
Allocated 22 years ago on Aug 01, 2002
Updated 3 years ago on Sep 03, 2020
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
101.5.0.0/16 China Education and Research Network 65,536
101.5.0.0/17 China Education and Research Network 32,768
101.5.128.0/17 China Education and Research Network 32,768
101.6.0.0/16 China Education and Research Network 65,536
101.6.0.0/17 China Education and Research Network 32,768
101.6.128.0/17 China Education and Research Network 32,768
101.6.16.0/23 China Education and Research Network 512
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
101.7.7.0/24 China Education and Research Network 256
103.137.60.0/24 China Education and Research Network 256
103.165.110.0/23 China Education and Research Network (CERNET) 512
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

The list on this page is limited to 100 results. The totality of IPv4 ranges for this ASN is available through our ASN & IP Ranges APIs.

Netblock Company
2001:250:101f::/48 CERNET IPv6 Backbone
2001:250:205::/48 CERNET IPv6 Backbone
2001:250:206::/48 CERNET IPv6 Backbone
2001:250:207::/48 CERNET IPv6 Backbone
2001:250:208::/48 CERNET IPv6 Backbone
2001:250:209::/48 CERNET IPv6 Backbone
2001:250:20a::/48 CERNET IPv6 Backbone
2001:250:20b::/48 CERNET IPv6 Backbone
2001:250:20c::/48 CERNET IPv6 Backbone
2001:250:20f::/48 CERNET IPv6 Backbone
2001:250:212::/48 CERNET IPv6 Backbone
2001:250:214::/48 CERNET IPv6 Backbone
2001:250:215::/48 CERNET IPv6 Backbone
2001:250:218::/48 CERNET IPv6 Backbone
2001:250:219::/48 CERNET IPv6 Backbone
2001:250:21a::/48 CERNET IPv6 Backbone
2001:250:21b::/48 CERNET IPv6 Backbone
2001:250:21e::/48 CERNET IPv6 Backbone
2001:250:21f::/48 CERNET IPv6 Backbone
2001:250:223::/48 CERNET IPv6 Backbone
2001:250:228::/48 CERNET IPv6 Backbone
2001:250:22b::/48 CERNET IPv6 Backbone
2001:250:22d::/48 CERNET IPv6 Backbone
2001:250:22e::/48 CERNET IPv6 Backbone
2001:250:230::/48 CERNET IPv6 Backbone
2001:250:231::/48 CERNET IPv6 Backbone
2001:250:232::/48 CERNET IPv6 Backbone
2001:250:236::/48 CERNET IPv6 Backbone
2001:250:237::/48 CERNET IPv6 Backbone
2001:250:238::/48 CERNET IPv6 Backbone
2001:250:23a::/48 CERNET IPv6 Backbone
2001:250:23b::/48 CERNET IPv6 Backbone
2001:250:23c::/48 CERNET IPv6 Backbone
2001:250:23d::/48 CERNET IPv6 Backbone
2001:250:243::/48 CERNET IPv6 Backbone
2001:250:2::/48 CERNET IPv6 Backbone
2001:250:3400::/48 Guangxi Normal University
2001:250:3401::/48 Guangxi University
2001:250:3402::/48 CERNET IPv6 Backbone
2001:250:3403::/48 CERNET IPv6 Backbone
2001:250:3404::/48 CERNET IPv6 Backbone
2001:250:3405::/48 CERNET IPv6 Backbone
2001:250:3406::/48 CERNET IPv6 Backbone
2001:250:3407::/48 CERNET IPv6 Backbone
2001:250:3408::/48 CERNET IPv6 Backbone
2001:250:3409::/48 CERNET IPv6 Backbone
2001:250:340a::/48 CERNET IPv6 Backbone
2001:250:340b::/48 CERNET IPv6 Backbone
2001:250:340c::/48 CERNET IPv6 Backbone
2001:250:340d::/48 CERNET IPv6 Backbone
2001:250:340e::/48 CERNET IPv6 Backbone
2001:250:340f::/48 CERNET IPv6 Backbone
2001:250:3410::/48 CERNET IPv6 Backbone
2001:250:3411::/48 CERNET IPv6 Backbone
2001:250:3412::/48 CERNET IPv6 Backbone
2001:250:3413::/48 CERNET IPv6 Backbone
2001:250:3414::/48 CERNET IPv6 Backbone
2001:250:3415::/48 CERNET IPv6 Backbone
2001:250:3416::/48 CERNET IPv6 Backbone
2001:250:3417::/48 CERNET IPv6 Backbone
2001:250:3418::/48 CERNET IPv6 Backbone
2001:250:3419::/48 CERNET IPv6 Backbone
2001:250:341a::/48 CERNET IPv6 Backbone
2001:250:341b::/48 CERNET IPv6 Backbone
2001:250:341c::/48 CERNET IPv6 Backbone
2001:250:341d::/48 CERNET IPv6 Backbone
2001:250:341e::/48 CERNET IPv6 Backbone
2001:250:341f::/48 CERNET IPv6 Backbone
2001:250:3420::/48 CERNET IPv6 Backbone
2001:250:3421::/48 CERNET IPv6 Backbone
2001:250:3422::/48 CERNET IPv6 Backbone
2001:250:3423::/48 CERNET IPv6 Backbone
2001:250:3424::/48 CERNET IPv6 Backbone
2001:250:3425::/48 CERNET IPv6 Backbone
2001:250:3426::/48 CERNET IPv6 Backbone
2001:250:3427::/48 CERNET IPv6 Backbone
2001:250:3428::/48 CERNET IPv6 Backbone
2001:250:3429::/48 CERNET IPv6 Backbone
2001:250:342a::/48 CERNET IPv6 Backbone
2001:250:342b::/48 CERNET IPv6 Backbone
2001:250:342c::/48 CERNET IPv6 Backbone
2001:250:342d::/48 CERNET IPv6 Backbone
2001:250:342e::/48 CERNET IPv6 Backbone
2001:250:342f::/48 CERNET IPv6 Backbone
2001:250:3430::/48 CERNET IPv6 Backbone
2001:250:3431::/48 CERNET IPv6 Backbone
2001:250:3432::/48 CERNET IPv6 Backbone
2001:250:3433::/48 CERNET IPv6 Backbone
2001:250:3434::/48 CERNET IPv6 Backbone
2001:250:3435::/48 CERNET IPv6 Backbone
2001:250:3436::/48 CERNET IPv6 Backbone
2001:250:3437::/48 CERNET IPv6 Backbone
2001:250:3438::/48 CERNET IPv6 Backbone
2001:250:3439::/48 CERNET IPv6 Backbone
2001:250:343a::/48 CERNET IPv6 Backbone
2001:250:343b::/48 CERNET IPv6 Backbone
2001:250:343c::/48 CERNET IPv6 Backbone
2001:250:343d::/48 CERNET IPv6 Backbone
2001:250:343e::/48 CERNET IPv6 Backbone
2001:250:343f::/48 CERNET IPv6 Backbone

The list on this page is limited to 100 results. The totality of IPv6 ranges for this ASN is available through our ASN & IP Ranges APIs.

Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
IP Ranges API

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 this data and more with IPinfo's Whois product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.

Hosted Domains

There are 2,730 domain names hosted across 2,010 IP addresses on this ASN.

IP Address Domain Domains on this IP
202.112.113.4 rrll.cn 47
166.111.4.100 join-tsinghua.edu.cn 24
202.205.158.85 cscse.edu.cn 18
58.154.224.253 chamber.com.cn 18
222.22.22.3 vpsve.com 17
202.205.161.133 xn--9csy2c3ycbhu94byt4e.cn 16
115.26.18.14 pbc25.co.in 15
59.67.104.83 56673.co.in 15
101.6.6.219 prettychemeng.cn 13
202.114.0.245 hust.edu.cn 13
115.26.79.17 nasdaq6795.com 10
166.111.134.52 uubt.com 10
203.91.121.21 wlbs.mobi 10
202.120.224.129 yingyingzhao.com 9
125.222.245.200 xn--fiq02ib9dctf8wrp1thgv4m0b.com 9
162.105.131.160 pku.edu.cn 8
121.194.14.142 xiaolin.tech 8
58.154.224.183 guozhuai.com 8
202.38.193.28 scut.edu.cn 7
121.194.4.35 uazzs.cn 7
202.120.199.4 xn--xhqp98cu1rp1c.cn 6
202.117.65.115 chd.edu.cn 6
202.114.64.221 whu.edu.cn 6
202.205.109.203 www.edu.cn 6
202.113.2.198 tju.edu.cn 6
183.175.55.110 hamiltalia.com 6
222.22.2.2 zx9582.com 6
202.120.188.98 tongjipress.com.cn 6
202.118.223.50 lywhysp.com 6
210.30.206.172 neu.edu.cn 6
202.205.184.153 xn--fiqz9slrgonhkob940fsne.xn--fiqz9s 5
42.245.52.70 freshprintcompany.com 5
202.204.128.161 bfsu.edu.cn 5
202.120.2.119 sjtu.edu.cn 5
202.204.193.84 cup.edu.cn 5
202.38.64.246 ustc.edu.cn 5
202.115.32.43 scu.edu.cn 5
121.194.2.250 tsingshang.com.cn 5
202.119.32.7 xn--xhq60ktwfzrc.com 5
114.214.101.17 ouasivr.com 5
202.114.207.30 xn--fiqq6k45cmxcf2df98d.xyz 5
211.82.204.107 xn--fiqz9skvbla560ae2z.cn 5
202.112.0.46 shuang.org 5
222.30.45.190 nankai.edu.cn 5
121.251.249.55 xn--fiqq6k45cmxcf2df98d.cc 5
59.64.105.73 537997.com 5
211.86.56.228 tdem.org 5
210.47.0.168 cust.edu.cn 5
202.207.177.42 ncit.edu.cn 5
210.39.2.238 adelesun.com 5

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity

Peers

There are 60 peers for this ASN.

Peers Name
AS1299 Arelion Sweden AB
AS131578 Beijing Foreign Studies University
AS132337 Axclusive
AS133111 CERNET New Technology Co., Ltd
AS133465 Duke Kunshan University
AS138369 CERNET2 regional IX at Shenzhen University
AS138371 CERNET2 regional IX at Ocean University of China
AS138378 CERNET2 regional IX at Yunnan University
AS138393 CERNET2 regional IX at Guangxi University
AS138441 CERNET2 regional IX at Xinjiang University
AS139139 Shenyang Agricultural University
AS140570 Hong Kong Beecloud System Technology Services Limited
AS140627 OneQode
AS15412 FLAG TELECOM UK LIMITED
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
AS24482 SG.GS
AS2914 NTT America, Inc.
AS3491 PCCW Global, Inc.
AS36236 NetActuate, Inc
AS38008 Aperture Science Limited
AS38195 Superloop
AS39120 Convergenze S.p.A.
AS41095 IPTP LTD
AS4134 CHINANET-BACKBONE
AS45796 UIH / BB Connect
AS4635 Hong Kong Internet Exchange--Route Server 1
AS4789 NAP1 at CERNET
AS4837 CHINA UNICOM China169 Backbone
AS49544 i3D.net B.V
AS58453 Level 30, Tower 1
AS6453 TATA COMMUNICATIONS (AMERICA) INC
AS6939 Hurricane Electric LLC
AS7473 Singapore Telecommunications Ltd
AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
AS7660 Asia Pacific Advanced Network - Japan
AS9002 RETN Limited
AS9304 HGC Global Communications Limited
AS9405 Test platform Service Center
AS9808 China Mobile Communications Group Co., Ltd.
AS9930 TTNET-MY
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Upstreams

There are 12 upstreams for this ASN.

upstreams Name
AS1299 Arelion Sweden AB
AS140570 Hong Kong Beecloud System Technology Services Limited
AS174 Cogent Communications
AS23764 CTGNet
AS23910 China Next Generation Internet CERNET2
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 this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Downstreams

There are 8 downstreams for this ASN.

Downstreams Name
AS131578 Beijing Foreign Studies University
AS133111 CERNET New Technology Co., Ltd
AS133465 Duke Kunshan University
AS138369 CERNET2 regional IX at Shenzhen University
AS139139 Shenyang Agricultural University
AS23911 China Next Generation Internet Beijing IX
AS24348 CERNET2 IX at Tsinghua University
AS9405 Test platform Service Center
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

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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