AS721 DoD Network Information Center
General Info - AS721
23,384,832
9,223,372,036,854,775,808
IP Address Ranges
| Netblock | Number of IPs | |
|---|---|---|
| 2608:121:1::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2608:121:2::/47 | 2,417,851,639,229,258,349,412,352 | |
| 2608:121:4::/46 | 4,835,703,278,458,516,698,824,704 | |
| 2608:121:8::/46 | 4,835,703,278,458,516,698,824,704 | |
| 2608:121:d::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2608:121:e::/47 | 2,417,851,639,229,258,349,412,352 | |
| 2608:121:10::/44 | 19,342,813,113,834,066,795,298,816 | |
| 2608:121:20::/43 | 38,685,626,227,668,133,590,597,632 | |
| 2608:121:40::/42 | 77,371,252,455,336,267,181,195,264 | |
| 2608:121:80::/41 | 154,742,504,910,672,534,362,390,528 | |
| 2608:121:100::/40 | 309,485,009,821,345,068,724,781,056 | |
| 2608:121:200::/39 | 618,970,019,642,690,137,449,562,112 | |
| 2608:121:400::/38 | 1,237,940,039,285,380,274,899,124,224 | |
| 2608:121:800::/37 | 2,475,880,078,570,760,549,798,248,448 | |
| 2608:121:1000::/36 | 4,951,760,157,141,521,099,596,496,896 | |
| 2608:121:2000::/35 | 9,903,520,314,283,042,199,192,993,792 | |
| 2608:121:4000::/34 | 19,807,040,628,566,084,398,385,987,584 | |
| 2608:121:8000::/33 | 39,614,081,257,132,168,796,771,975,168 |
What is an Autonomous System (AS)?
An Autonomous System (AS) is a collection of connected networks that operate under a common administrative domain and share routing policies. Each AS is identified by a unique Autonomous System Number (ASN), which is used to exchange routing information with other ASs. AS can control how traffic flows through networks and then filter out unwanted traffic.
