AS4693
CSK-IT MANAGEMENT CORPORATION — scsk.jp
Summary
| Country |
 Japan
|
| Organization | CSK-IT MANAGEMENT CORPORATION |
| Domain | scsk.jp |
| Number of IPv4 | 45,056 |
| Number of IPv6 | 7.9228× 1028 |
| AS Type | Business |
| Registry | JPNIC |
| Allocated | January 01, 1970 (about 56 years ago) |
| Updated | February 05, 2010 (about 15 years ago) |
IP Ranges
AS4693 announces 7 IPv4 ranges and 1 IPv6 range.
That's a total of 45,056 IPv4 addresses and 7.9228× 1028 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 203.140.0.0/19 |
Scsk Corporation
|
8,192 | JPNIC | |
| 203.179.32.0/19 |
Scsk Corporation
|
8,192 | JPNIC | |
| 210.159.96.0/19 |
Scsk Corporation
|
8,192 | JPNIC | |
| 210.166.96.0/19 |
Scsk Corporation
|
8,192 | JPNIC | |
| 210.249.192.0/19 |
Realty Infomedia CO.,LTD.
|
8,192 | JPNIC | |
| 211.7.192.0/21 |
Scsk Corporation
|
2,048 | JPNIC | |
| 211.7.208.0/21 |
Highway Internet (csk Network Systems Corp.)
|
2,048 | JPNIC |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2400:af80::/32 |
Scsk Corporation
|
7.9228× 1028 | JPNIC |
Peers
AS4693 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.
Upstreams
AS4693 connects to the global Internet via at least 2 upstream providers. In this setup, AS4693 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS4693 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS4693's role in extending Internet access beyond its own infrastructure.