LAYER3 INTEL
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Data as of Nov 9, 2026

143.249.196.0/24

No anonymizer space · no proxy exits in 30 days

Headquarters, USAISC · reallocated from United States Department of Defense (DoD)

Announcement
this exact prefix
No RPKI
Announced by
AS1501
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Aug 2026
from AS6006 United States Department of Defense (DoD), after 15.8 years unannounced

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
143.249.0.0/1665,536PM-WIN-T-NET3United States Department of Defense (DoD) (USDDD) · USDirect AllocationOct 26, 1990disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 143.249.0.0/1665,536PM-WIN-T-NET3Headquarters, USAISC (HEADQU-3) · USReallocatedAug 21, 2025—

Network & registry

AnnouncementRouting historyWhois & abuse
Registry

Holder

Organization
United States Department of Defense (DoD)
Handle
USDDD
Range
143.249.0.0/16
Registration type
Direct Allocation
Record created
Oct 26, 1990
Legacy
yes
Reallocated to
Headquarters, USAISC (HEADQU-3)
Reallocated
Aug 21, 2025
Origin network

AS1501

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