LAYER3 INTEL
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Data as of Nov 9, 2026

143.249.104.0/22

No anonymizer space · no proxy exits in 30 days

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

Announcement
143.249.96.0/20
No RPKI
Announced by
AS1501
Type
Business
Risk
0 / 100 · Low
Recent change
New origin May 2026
from AS1501 Headquarters, USAISC, after 5.1 years unannounced

Registrations in this block

The registry's network records over this block, widest first, each 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
Announced by

Covering announcement 143.249.96.0/20

Prefix
143.249.96.0/20
Announced by
AS1501 Headquarters, USAISC
Type
Business
RPKI
No RPKI
Netname
PM-WIN-T-NET3
Registrant
Headquarters, USAISC
RIR
ARIN
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