AS257
Navy Network Information Center (nnic) — mail.mil
Summary
| Country |
 United States
|
| Organization | Navy Network Information Center (nnic) |
| Domain | mail.mil |
| Number of IPv4 | 960 |
| Number of IPv6 | 1.2089× 1024 |
| AS Type | Government |
| Registry | ARIN |
| Allocated | December 22, 1988 (about 36 years ago) |
| Updated | July 05, 2011 (about 14 years ago) |
IP Ranges
AS257 announces 6 IPv4 ranges and 1 IPv6 range.
That's a total of 960 IPv4 addresses and 1.2089× 1024 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 204.102.228.0/25 |
Naval Postgraduate School
|
128 | ARIN | REASSIGNMENT |
| 204.102.228.128/25 |
Naval Postgraduate School
|
128 | ARIN | REASSIGNMENT |
| 204.102.229.0/24 |
Naval Postgraduate School
|
256 | ARIN | REASSIGNMENT |
| 205.155.65.0/24 |
CENIC
|
256 | ARIN | ALLOCATION |
| 209.129.248.0/25 |
CENIC
|
128 | ARIN | ALLOCATION |
| 209.129.248.192/26 |
CENIC
|
64 | ARIN | ALLOCATION |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2607:f380:804::/48 |
CENIC
|
1.2089× 1024 | ARIN | ALLOCATION |
Peers
AS257 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
AS257 connects to the global Internet via at least 2 upstream providers. In this setup, AS257 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS257 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.