AS38635
Keio University — keio.ac.jp
Summary
| Country |
 Japan
|
| Organization | Keio University |
| Domain | keio.ac.jp |
| Number of IPv4 | 131,072 |
| Number of IPv6 | 2.4179× 1024 |
| AS Type | Education |
| Registry | JPNIC |
| Allocated | January 01, 1970 (about 56 years ago) |
| Updated | March 11, 2012 (about 13 years ago) |
IP Ranges
AS38635 announces 2 IPv4 ranges and 2 IPv6 ranges.
That's a total of 131,072 IPv4 addresses and 2.4179× 1024 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 131.113.0.0/16 |
Keio University
|
65,536 | APNIC | ASSIGNED PORTABLE |
| 133.27.0.0/16 |
Japan Network Information Center
|
65,536 | APNIC | ALLOCATED PORTABLE |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2001:df0:eb::/48 |
Keio University
|
1.2089× 1024 | JPNIC | |
| 2001:df2:c900::/48 |
Keio University
|
1.2089× 1024 | JPNIC |
Peers
AS38635 does not have any direct peering agreements. Instead, its global connectivity is achieved through transit providers. While this setup ensures comprehensive reach, future peering could reduce latency and optimize route efficiency.
Upstreams
AS38635 connects to the global Internet via at least 2 upstream providers. In this setup, AS38635 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS38635 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.