AS257 Prefixes
16 prefixes originated by AS257
IPv4 Prefixes (11)
| Prefix | Description | IPs | CC |
|---|---|---|---|
| 204.102.229.0/24 | Naval Postgraduate School | 256 | US |
| 205.155.65.0/24 | Naval Postgraduate School | 256 | US |
| 204.102.228.0/25 | Naval Postgraduate School | 128 | US |
| 204.102.228.128/25 | Naval Postgraduate School | 128 | US |
| 209.129.248.0/25 | Naval Postgraduate School | 128 | US |
| 209.129.248.192/26 | Naval Postgraduate School | 64 | US |
| 205.155.239.128/27 | DNIC-AS-00257 | 32 | US |
| 137.164.50.148/30 | DNIC-AS-00257 | 4 | US |
| 137.164.50.252/30 | DNIC-AS-00257 | 4 | US |
| 137.164.24.188/31 | DNIC-AS-00257 | 2 | US |
| 204.102.230.112/31 | DNIC-AS-00257 | 2 | US |
IPv6 Prefixes (5)
| Prefix | Description | /len | CC |
|---|---|---|---|
| 2607:f380:804::/48 | DNIC-AS-00257 | /48 | US |
| 2607:f380:1::118:9a43:2940/122 | DNIC-AS-00257 | /122 | US |
| 2607:f380:1::118:9a43:2fc0/122 | DNIC-AS-00257 | /122 | US |
| 2607:f380:1::108:9a41:8bc0/123 | DNIC-AS-00257 | /123 | US |
| 2607:f380:1::11c:c66e:6700/123 | DNIC-AS-00257 | /123 | US |