AS7660 Asia Pacific Advanced Network - Japan
IP Address Ranges
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 203.181.194.0/23 | 203.181.194.0 | 203.181.195.255 | 512 | |
| 203.181.248.0/23 | 203.181.248.0 | 203.181.249.255 | 512 |
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 2001:200:900::/40 | 2001:200:900:: | 2001:200:9ff:ffff:ffff:ffff:ffff:ffff | 309.49 Septillion | |
| 2001:200:e000::/35 | 2001:200:e000:: | 2001:200:ffff:ffff:ffff:ffff:ffff:ffff | 9.90 Octillion |
Downstreams
- AS2500 WIDE Project
- AS2907 Research Organization of Information and Systems National Institute of Informatics
- AS4538 China Education and Research Network Center
- AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
- AS9264 Academia Sinica
- AS9270 National Infomation Society Agency
- AS9355 National Institute of Information and Communications Technology
- AS9367 Institute of Science Tokyo
- AS9821 Department of Science and Technology
- AS11537 Internet2
- AS17579 Korea Institute of Science and Technology Information
- AS18125 Tsukuba Business-Academia Cooperation Support Center Agriculture Forestry and Fisheries Research Council Secretariat Ministry of Agriculture Forestry and Fisheries
- AS23855 Singapore Advanced Research and Education Network
- AS23911 China Next Generation Internet Beijing IX
- AS24287 National Institute of Informatics
- AS24475 ThaiREN.Thailand Research and Education Network Thailand
- AS24490 Trans-Eurasia Information Network (TEIN2) - SG
- AS137207 Joint Universities Computer Centre Limited
What is an Autonomous System (AS)?
An Autonomous System (AS) is a collection of connected networks that operate under a common administrative domain and share routing policies. Each AS is identified by a unique Autonomous System Number (ASN), which is used to exchange routing information with other ASs. AS can control how traffic flows through networks and then filter out unwanted traffic.
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