Data as of Nov 3, 2026
131.16.80.0/21
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Recent change
New origin May 2026
from AS367 United States Department of Defense (DoD)
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 131.16.0.0/16 since Oct 2016 | AS721 | Business | United States Department of Defense (DoD) via Air Force Systems Networking |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 131.16.83.0/24 since May 2026 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 131.16.0.0/16 | 65,536 | RAMSTEIN-NET | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Dec 20, 1988 | [email protected] |
| └ 131.16.0.0/16 | 65,536 | RAMSTEIN-NET | Air Force Systems Networking (7ESG) · US | Reallocated | Aug 18, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 131.16.0.0/16
- Registration type
- Direct Allocation
- Record created
- Dec 20, 1988
- Legacy
- yes
- Reallocated to
- Air Force Systems Networking (7ESG)
- Reallocated
- Aug 18, 2025
Origin network
AS56
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- Registered
- Dec 18, 1985
- Domain
- mail.mil
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
latest 12 of 13 stints
Summary
Routing history
- Pattern
- Rotating
- First seen
- Jun 2005
- Current origin since
- May 2026 · 5 mo
- Origin networks
- 6
- Last change of origin
- May 2026
Recorded history
History
- Stints on record
- 13
- Handoffs
- 7
Whois
Registration for this announcement
- Range
- 131.16.0.0/16
- Netname
- RAMSTEIN-NET
- Registrant
- Air Force Systems Networking
- Organization
- Air Force Systems Networking (7ESG)
- Org address
- 501 EAST MOORE DR. BLDG 884 RM 1100 GUNTHER ANNEX, MAXWELL AFB, AL, 36114
- Org country
- US
- Type
- Reallocated
- Handle
- NET-131-16-0-0-2
- Parent
- NET-131-16-0-0-1
- Created
- Aug 18, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 20, 1988
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN