LAYER3 INTEL
Get started
Sign in
Data as of Nov 4, 2026

55.78.0.0/16

No anonymizer space · no proxy exits in 30 days

United States Department of Defense (DoD)

Announcement
this exact prefix
No RPKI
Announced by
AS329
Type
Business
Recent change
New origin Sep 2026
from AS329 United States Department of Defense (DoD)

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
55.0.0.0/8AS721BusinessUnited States Department of Defense (DoD)
via Headquarters, USAISC
More specific

Announcements inside

PrefixOriginTypeHolderRPKI
55.78.221.0/24
since May 2020
AS329BusinessUnited 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
55.0.0.0/816,777,216CONUS-RCASUnited States Department of Defense (DoD) (USDDD) · USDirect AllocationOct 26, 1996disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 55.0.0.0/816,777,216CONUS-RCASHeadquarters, USAISC (HEADQU-3) · USReallocatedAug 20, 2025—

Network & registry

AnnouncementRouting historyWhois & abuse
Registry

Holder

Organization
United States Department of Defense (DoD)
Handle
USDDD
Range
55.0.0.0/8
Registration type
Direct Allocation
Record created
Oct 26, 1996
Legacy
yes
Reallocated to
Headquarters, USAISC (HEADQU-3)
Reallocated
Aug 20, 2025
Origin network

AS329

US
Name
United States Department of Defense (DoD)
Type
Business
Registered
Jun 30, 1989
Domain
mail.mil
Industry
Military, Defense, National Security, and International Affairs
Spamhaus ASN-DROP
not listed