AS173
Nippon Telegraph And Telephone Corporation — ntt.com
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Summary
| Country |
 Japan
|
| Organization | Nippon Telegraph And Telephone Corporation |
| Domain | ntt.com |
| Number of IPv4 | 8,704 |
| Number of IPv6 | 0 |
| AS Type | Business |
| Registry | APNIC |
| Allocated | January 01, 1970 (about 56 years ago) |
| Updated | January 11, 2023 (about 2 years ago) |
IP Ranges
AS173 announces 2 IPv4 ranges and 0 IPv6 range.
That's a total of 8,704 IPv4 address and 0 IPv6 address.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 163.138.160.0/19 |
Nippon Telegraph And Telephone Corporation
|
8,192 | APNIC | ALLOCATED PORTABLE |
| 192.47.168.0/23 |
Nippon Telegraph And Telephone Corporation
|
512 | APNIC | ASSIGNED NON-PORTABLE |
Peers
AS173 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
AS173 connects to the global Internet via at least 2 upstream providers. In this setup, AS173 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS173 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS173's role in extending Internet access beyond its own infrastructure.