Data as of Nov 7, 2026

132.133.0.0/16

No anonymizer space · no proxy exits in 30 days

United States Department of Defense (DoD)

Announcement
this exact prefix
No RPKI
Announced by
Type
Business

Announcements

Less specific

Covering announcements

PrefixOriginTypeRPKI
132.128.0.0/12
since Dec 2010
AS721Business
More specific

Announcements inside

PrefixOriginTypeHolderRPKI
132.133.198.0/24
since Dec 2023
AS306BusinessUnited States Department of Defense (DoD)
via Headquarters, USAISC
132.133.199.0/24
since Nov 2023
AS306BusinessUnited States Department of Defense (DoD)
via Headquarters, USAISC
132.133.241.0/24
since May 2022
AS306BusinessUnited States Department of Defense (DoD)
via Headquarters, USAISC
132.133.242.0/24
since Mar 2018
AS306BusinessUnited States Department of Defense (DoD)
via Headquarters, USAISC
132.133.253.0/24
since Oct 2017
AS306BusinessUnited States Department of Defense (DoD)
via Headquarters, USAISC

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
132.133.0.0/1665,536ARNG-WY-NGNETUnited States Department of Defense (DoD) (USDDD) · USDirect AllocationMar 26, 1990disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 132.133.0.0/1665,536ARNG-WY-NGNETHeadquarters, USAISC (HEADQU-3) · USReallocatedAug 20, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil

Network & registry

Registry

Holder

Organization
United States Department of Defense (DoD)
Handle
USDDD
Range
132.133.0.0/16
Registration type
Direct Allocation
Record created
Mar 26, 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