AS37891
Jr Tokai Information Systems Company — jrta.co.jp
Summary
| Country |
 Japan
|
| Organization | Jr Tokai Information Systems Company |
| Domain | jrta.co.jp |
| Number of IPv4 | 3,840 |
| Number of IPv6 | 0 |
| AS Type | Business |
| Registry | JPNIC |
| Allocated | January 01, 1970 (about 56 years ago) |
| Updated | June 20, 2006 (about 19 years ago) |
IP Ranges
AS37891 announces 8 IPv4 ranges and 0 IPv6 range.
That's a total of 3,840 IPv4 address and 0 IPv6 address.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 58.147.160.0/21 |
Jr Tokai Information Systems Company
|
2,048 | JPNIC | |
| 58.147.162.0/24 |
Jr Tokai Information Systems Company
|
256 | JPNIC | |
| 58.147.163.0/24 |
Jr Tokai Information Systems Company
|
256 | JPNIC | |
| 58.147.165.0/24 |
JR TOKAI AGENCY CO.,LTD.
|
256 | JPNIC | |
| 58.147.166.0/24 |
Jr Tokai Information Systems Company
|
256 | JPNIC | |
| 58.147.167.0/24 |
Jr Tokai Information Systems Company
|
256 | JPNIC | |
| 192.218.65.0/24 |
Central Japan Railway Company
|
256 | JPNIC | |
| 192.218.66.0/24 |
Central Japan Railway Company
|
256 | JPNIC |
Peers
AS37891 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
AS37891 connects to the global Internet via at least 3 upstream providers. In this setup, AS37891 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS37891 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.