LAYER3 INTEL
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Data as of Nov 8, 2026

138.178.0.0/15

No anonymizer space

United States Department of Defense (DoD)

Announcement
this exact prefix
No RPKI
Announced by
AS721
Type
Business

Announcements

More specific

Announcements inside

PrefixOriginTypeHolderRPKI
138.178.0.0/16
since Sep 2016
AS721BusinessUnited States Department of Defense (DoD)
via Navy Network Information Center (NNIC)

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
138.178.0.0/1665,536REGIONAL-ROT1United States Department of Defense (DoD) (USDDD) · USDirect AllocationMay 7, 1990disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 138.178.0.0/1665,536REGIONAL-ROT1Navy Network Information Center (NNIC) (NNICN-1) · USReallocatedAug 14, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil
138.179.0.0/1665,536DISN-IP-RESERVE-138-179unknown———
└ 138.179.0.0/1665,536DISN-IP-RESERVE-138-179DoD Network Information Center (DNIC) · USAllocationAug 29, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil

Network & registry

AnnouncementRouting historyWhois & abuse
Registry

Holder

Organization
Not stated by the registry
Origin network

AS721

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