Data as of Nov 3, 2026
Autonomous system
AS321
United States Department of Defense (DoD)
Announces 66,560 addresses in 14 prefixes. None of it is anonymizer space.
Type
Business
US
Announced prefixes
| Prefix | Type | Holder | RPKI |
|---|---|---|---|
| 55.24.0.0/16 since Nov 2009 | Business | via Headquarters, USAISC | |
| 55.24.20.0/24 since Apr 2019 | Business | via Headquarters, USAISC | |
| 55.24.87.0/24 since Apr 2019 | Business | via Headquarters, USAISC | |
| 55.24.229.0/24 since Apr 2019 | Business | via Headquarters, USAISC | |
| 55.24.230.0/24 since Apr 2019 | Business | via Headquarters, USAISC | |
| 55.24.231.0/24 since Apr 2019 | Business | via Headquarters, USAISC | |
| 55.24.232.0/24 since Apr 2019 | Business | via Headquarters, USAISC | |
| 55.24.234.0/24 since Apr 2019 | Business | via Headquarters, USAISC | |
| 55.24.236.0/24 since Apr 2019 | Business | via Headquarters, USAISC | |
| 55.24.251.0/24 since Apr 2019 | Business | via Headquarters, USAISC | |
| 139.241.3.0/24 since Jul 2025 | Business | via DoD Network Information Center | |
| 139.241.58.0/24 since Jul 2025 | Business | via DoD Network Information Center | |
| 139.241.59.0/24 since Jul 2025 | Business | via DoD Network Information Center | |
| 139.241.86.0/24 since Aug 2026 | Business | via DoD Network Information Center |
Network & history
Profile
- Registered
- Jun 30, 1989
- Domain
- mail.mil
- Industry
- Military, Defense, National Security, and International Affairs
Routing patterns
How its announcements have moved
Arrivals