| AS | Desc | Country / Region | IPv4 NUMs | IPv6 NUMs |
|---|---|---|---|---|
| AS2497 | IIJ - Internet Initiative Japan Inc., JP |  Japan |
3939584 | 17717067776 |
| AS2500 | WIDE-BB - WIDE Project, JP | Japan |
65536 | 4294967296 |
| AS2907 | SINET-AS - Research Organization of Information and Systems, National Institute of Informatics, JP | Japan |
8819968 | 8589934595 |