AS18278
Cable TV Corporation — nic.ad.jp
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Summary
| Country |
 Japan
|
| Organization | Cable TV Corporation |
| Domain | nic.ad.jp |
| Number of IPv4 | 47,104 |
| Number of IPv6 | 7.9228× 1028 |
| AS Type | ISP |
| Registry | APNIC |
| Allocated | January 01, 1970 (about 56 years ago) |
| Updated | August 13, 2024 (about 1 year ago) |
IP Ranges
AS18278 announces 9 IPv4 ranges and 1 IPv6 range.
That's a total of 47,104 IPv4 addresses and 7.9228× 1028 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 103.92.228.0/22 |
Cable TV Corporation
|
1,024 | JPNIC | |
| 118.82.48.0/20 |
Cable TV Corporation
|
4,096 | JPNIC | |
| 123.0.64.0/19 |
Cable TV Corporation
|
8,192 | JPNIC | |
| 123.0.96.0/19 |
Cable TV Corporation
|
8,192 | JPNIC | |
| 183.91.96.0/19 |
Cable TV Corporation
|
8,192 | JPNIC | |
| 202.151.96.0/19 |
Cable TV Corporation
|
8,192 | JPNIC | |
| 202.231.176.0/20 |
Cable TV Corporation
|
4,096 | JPNIC | |
| 210.251.176.0/20 |
Cable TV Corporation
|
4,096 | JPNIC | |
| 219.100.108.0/22 |
Cable TV Corporation
|
1,024 | JPNIC |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2400:a300::/32 |
Cable TV Corporation
|
7.9228× 1028 | JPNIC |
Peers
AS18278 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
AS18278 connects to the global Internet via at least 4 upstream providers. In this setup, AS18278 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS18278 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS18278's role in extending Internet access beyond its own infrastructure.