LAYER3 INTEL
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Data as of Nov 5, 2026

138.163.146.0/24

No anonymizer space · no proxy exits in 30 days

United States Department of Defense (DoD)

Announcement
this exact prefix
No RPKI
Announced by
AS665
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
138.163.0.0/16
since Jun 2020
AS665BusinessUnited States Department of Defense (DoD)
via Navy Network Information Center (NNIC)
138.162.0.0/15
since Aug 2016
AS665Business

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
138.163.0.0/1665,536NMCI-NET-SANUnited States Department of Defense (DoD) (USDDD) · USDirect AllocationMay 7, 1990disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 138.163.0.0/1665,536NMCI-NET-SANNavy Network Information Center (NNIC) (NNICN-1) · USReallocatedAug 14, 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
138.163.0.0/16
Registration type
Direct Allocation
Record created
May 7, 1990
Legacy
yes
Reallocated to
Navy Network Information Center (NNIC) (NNICN-1)
Reallocated
Aug 14, 2025
Origin network

AS665

US
Name
United States Department of Defense (DoD)
Type
Business
Registered
Apr 19, 1990
Domain
mail.mil
Industry
Military, Defense, National Security, and International Affairs
Spamhaus ASN-DROP
not listed