AS4538
China Education and Research Network Center · cernet.edu.cn
AS4538 – China Education and Research Network Center
Field | Value |
---|---|
Country |
China
|
Website | cernet.edu.cn |
Hosted domains | 2,777 |
Number of IPv4 | 17,171,200 |
Number of IPv6 | 326,897,988,052,960,271,446,654,559,715,328 |
ASN type | Education |
Registry | apnic |
Allocated | 22 years ago on Aug 01, 2002 |
Updated | 3 years ago on Sep 03, 2020 |
IP 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 |
101.5.0.0/16 | 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 |
101.6.6.0/24 | 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 |
111.114.80.0/20 | China Education and Research Network | 4,096 |
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::/32 | 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 |
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
Hosted Domains
There are 2,777 domain names hosted across 2,040 IP addresses on this ASN.
Peers
There are 59 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 |
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 |
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 |
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 |
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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