LAYER3 INTEL
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Data as of Nov 4, 2026

132.131.40.0/21

No anonymizer space · no proxy exits in 30 days

United States Department of Defense (DoD)

Announcement
this exact prefix
No RPKI
Announced by
AS306
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
132.131.0.0/16
since May 2005
AS306BusinessUnited States Department of Defense (DoD)
via Headquarters, USAISC
132.128.0.0/12
since Dec 2010
AS721Business

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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
132.118.0.0 - 132.132.255.255983,040ARNG-NG-CONC5United States Department of Defense (DoD) (USDDD) · USDirect AllocationMar 5, 1990disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 132.118.0.0 - 132.132.255.255983,040ARNG-NG-CONC5Headquarters, USAISC (HEADQU-3) · USReallocatedAug 20, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil

Network & registry

AnnouncementRouting historyWhois & abuse
Registry

Holder

Organization
United States Department of Defense (DoD)
Handle
USDDD
Range
132.118.0.0 - 132.132.255.255
Registration type
Direct Allocation
Record created
Mar 5, 1990
Legacy
yes
Reallocated to
Headquarters, USAISC (HEADQU-3)
Reallocated
Aug 20, 2025
Origin network

AS306

US
Name
United States Department of Defense (DoD)
Type
Business
Registered
Jun 30, 1989
Domain
mail.mil
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed