LAYER3 INTEL
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Data as of Nov 6, 2026

199.123.108.0/24

No anonymizer space · no proxy exits in 30 days

Headquarters, USAISC · space held by United States Department of Defense (DoD)

Announcement
this exact prefix
No RPKI
Announced by
AS1540
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Oct 21, 2026
from AS367 United States Department of Defense (DoD)

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
199.123.104.0/21
since Dec 2010
AS721BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center

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
199.123.96.0 - 199.123.115.2555,120DDN-11United States Department of Defense (DoD) (USDDD) · USDirect AllocationDec 30, 1994disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 199.123.96.0 - 199.123.115.2555,120DDN-11DoD Network Information Center (DNIC) · USReallocatedAug 20, 2025disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 199.123.108.0/24256USAREURA5Headquarters, USAISC (HEADQU-3) · USReassignedAug 20, 2025—

Network & registry

AnnouncementRouting historyWhois & abuse
Registry

Holder

Organization
United States Department of Defense (DoD)
Handle
USDDD
Range
199.123.96.0 - 199.123.115.255
Registration type
Direct Allocation
Record created
Dec 30, 1994
Legacy
yes
Reallocated to
DoD Network Information Center (DNIC)
Reallocated
Aug 20, 2025
Origin network

AS1540

US
Name
Headquarters, USAISC
Type
Business
Registered
May 12, 2004
Domain
mail.mil
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed