AS17955
Densan Co., Ltd. — ndensan.co.jp
Summary
| Country |
 Japan
|
| Organization | Densan Co., Ltd. |
| Domain | ndensan.co.jp |
| Number of IPv4 | 35,328 |
| Number of IPv6 | 7.9228× 1028 |
| AS Type | ISP |
| Registry | JPNIC |
| Allocated | January 01, 1970 (about 56 years ago) |
| Updated | August 05, 2008 (about 16 years ago) |
IP Ranges
AS17955 announces 9 IPv4 ranges and 1 IPv6 range.
That's a total of 35,328 IPv4 addresses and 7.9228× 1028 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 103.152.138.0/23 |
Densan Co., Ltd.
|
512 | JPNIC | |
| 120.88.16.0/21 |
Densan Co., Ltd.
|
2,048 | JPNIC | |
| 120.88.24.0/21 |
Densan Co., Ltd.
|
2,048 | JPNIC | |
| 192.47.64.0/21 |
Densan Co., Ltd.
|
2,048 | JPNIC | |
| 202.247.192.0/18 |
Densan Co., Ltd.
|
16,384 | JPNIC | |
| 203.223.48.0/21 |
Densan Co., Ltd.
|
2,048 | JPNIC | |
| 203.223.56.0/22 |
Densan Co., Ltd.
|
1,024 | JPNIC | |
| 203.223.60.0/22 |
Densan Co., Ltd.
|
1,024 | JPNIC | |
| 210.56.160.0/19 |
Densan Co., Ltd.
|
8,192 | JPNIC |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2406:8000::/32 |
Densan Co., Ltd.
|
7.9228× 1028 | JPNIC |
Peers
AS17955 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
AS17955 connects to the global Internet via at least 2 upstream providers. In this setup, AS17955 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS17955 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.