Data as of Nov 3, 2026
131.11.0.0/16
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 Sep 2026
from AS749 United States Department of Defense (DoD)
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 131.11.0.0/17 since Sep 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 |
|---|---|---|---|---|---|---|
| 131.11.0.0/16 | 65,536 | BOLLING-NET | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Sep 8, 1988 | [email protected] |
| └ 131.11.0.0/16 | 65,536 | BOLLING-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
- 131.11.0.0/16
- Registration type
- Direct Allocation
- Record created
- Sep 8, 1988
- Legacy
- yes
- Reallocated to
- Air Force Systems Networking (7ESG)
- Reallocated
- Aug 18, 2025
Origin network
AS749
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- Domain
- mail.mil
- Industry
- Military, Defense, National Security, and International Affairs
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Sep 2021
- Current origin since
- Sep 2026 · 2 mo
- Origin networks
- 3
- Last change of origin
- Nov 2025
Recorded history
History
- Handoffs
- 4
Whois
Registration for this announcement
- Range
- 131.11.0.0/16
- Netname
- BOLLING-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-131-11-0-0-2
- Parent
- NET-131-11-0-0-1
- Created
- Aug 18, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 8, 1988
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN