IPv4 AS & ASN Directory
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 6.65.136.0 to 6.65.143.255 | 6.65.136.0/21 | AS1541 | Headquarters USAISC | See Range |
| 6.65.144.0 to 6.65.159.255 | 6.65.144.0/20 | AS1541 | Headquarters USAISC | See Range |
| 6.65.160.0 to 6.65.175.255 | 6.65.160.0/20 | AS1541 | Headquarters USAISC | See Range |
| 6.65.176.0 to 6.65.183.255 | 6.65.176.0/21 | AS1541 | Headquarters USAISC | See Range |
| 6.65.184.0 to 6.65.187.255 | 6.65.184.0/22 | AS1541 | Headquarters USAISC | See Range |
| 6.65.188.0 to 6.65.191.255 | 6.65.188.0/22 | AS367 | DoD Network Information Center | See Range |
| 6.65.192.0 to 6.65.255.255 | 6.65.192.0/18 | AS367 | DoD Network Information Center | See Range |
| 6.66.0.0 to 6.66.1.255 | 6.66.0.0/23 | AS749 | DoD Network Information Center | See Range |
| 6.66.2.0 to 6.66.3.255 | 6.66.2.0/23 | AS1452 | Headquarters USAISC | See Range |
| 6.66.4.0 to 6.66.7.255 | 6.66.4.0/22 | AS1452 | Headquarters USAISC | See Range |
| 6.66.8.0 to 6.66.15.255 | 6.66.8.0/21 | AS1452 | Headquarters USAISC | See Range |
| 6.66.16.0 to 6.66.19.255 | 6.66.16.0/22 | AS1452 | Headquarters USAISC | See Range |
| 6.66.20.0 to 6.66.20.255 | 6.66.20.0/24 | AS1452 | Headquarters USAISC | See Range |
| 6.66.21.0 to 6.66.21.255 | 6.66.21.0/24 | AS749 | DoD Network Information Center | See Range |
| 6.66.22.0 to 6.66.23.255 | 6.66.22.0/23 | AS1452 | Headquarters USAISC | See Range |
| 6.66.24.0 to 6.66.31.255 | 6.66.24.0/21 | AS1452 | Headquarters USAISC | See Range |
| 6.66.32.0 to 6.66.39.255 | 6.66.32.0/21 | AS1452 | Headquarters USAISC | See Range |
| 6.66.40.0 to 6.66.43.255 | 6.66.40.0/22 | AS1452 | Headquarters USAISC | See Range |
| 6.66.44.0 to 6.66.47.255 | 6.66.44.0/22 | AS749 | DoD Network Information Center | See Range |
| 6.66.48.0 to 6.66.63.255 | 6.66.48.0/20 | AS749 | DoD Network Information Center | See Range |
| 6.66.64.0 to 6.66.64.255 | 6.66.64.0/24 | AS1463 | Headquarters USAISC | See Range |
| 6.66.65.0 to 6.66.65.255 | 6.66.65.0/24 | AS749 | DoD Network Information Center | See Range |
| 6.66.66.0 to 6.66.67.255 | 6.66.66.0/23 | AS749 | DoD Network Information Center | See Range |
| 6.66.68.0 to 6.66.71.255 | 6.66.68.0/22 | AS749 | DoD Network Information Center | See Range |
| 6.66.72.0 to 6.66.79.255 | 6.66.72.0/21 | AS749 | DoD Network Information Center | See Range |
Page 257 of 22.832