LAYER3 INTEL
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Data as of Nov 8, 2026

205.104.0.0/15

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
205.105.221.0/24
since Jun 2022
AS27064BusinessUnited States Department of Defense (DoD)
via Navy Network Information Center (NNIC)
205.105.223.0/24
since Jun 2022
AS27064BusinessUnited 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
205.56.0.0 - 205.117.255.2554,063,232NETBLK-NIC-BLK1United States Department of Defense (DoD) (USDDD) · USDirect AllocationMay 18, 1998disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 205.56.0.0 - 205.117.255.2554,063,232NETBLK-NIC-BLK1Navy Network Information Center (NNIC) (NNICN-1) · USReallocatedAug 15, 2025—

Network & registry

AnnouncementRouting historyWhois & abuse
Registry

Holder

Organization
United States Department of Defense (DoD)
Handle
USDDD
Range
205.56.0.0 - 205.117.255.255
Registration type
Direct Allocation
Record created
May 18, 1998
Reallocated to
Navy Network Information Center (NNIC) (NNICN-1)
Reallocated
Aug 15, 2025
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