AS138 United States Department of Defense (DoD) 🇺🇸 US
Announcing 22 prefixes, seen at the RIS collectors.
IPv4 prefixes
22
43,008 (168 × /24)
IPv6 prefixes
0
-
Upstreams
1
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS138
- Name
- United States Department of Defense (DoD)
- Organisation
- United States Department of Defense (AS138)
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 1987-11-11
- Scope
- Not Disclosed
- PeeringDB
- net/36690
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announcement history
One point per day, recorded at each table import
IPv4
IPv6
Recorded changes
New prefixes and origin changes seen on the live stream
| When | Change | Prefix | Origin | Path |
|---|---|---|---|---|
| 2026-09-26 01:37:02Z | new prefix | 131.66.44.0/22 | AS138 United States Department of Defense (DoD) | 29504159351299335672172127064138138 |
| 2026-09-26 01:37:02Z | new prefix | 131.66.251.0/24 | AS138 United States Department of Defense (DoD) | 29504159351299335672172127064138138 |
| 2026-09-26 01:37:02Z | new prefix | 131.66.252.0/24 | AS138 United States Department of Defense (DoD) | 29504159351299335672172127064138138 |
| 2026-09-26 01:37:02Z | new prefix | 131.66.249.0/24 | AS138 United States Department of Defense (DoD) | 29504159351299335672172127064138138 |
| 2026-09-26 01:37:02Z | new prefix | 131.66.250.0/24 | AS138 United States Department of Defense (DoD) | 29504159351299335672172127064138138 |
| 2026-09-26 01:37:02Z | new prefix | 131.66.48.0/22 | AS138 United States Department of Defense (DoD) | 29504159351299335672172127064138138 |
| 2026-09-26 01:36:32Z | new prefix | 131.66.246.0/24 | AS138 United States Department of Defense (DoD) | 29504159351299335672172127064138138 |