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Data as of Nov 3, 2026

131.121.84.0/22

No anonymizer space · no proxy exits in 30 days

United States Department of Defense (DoD)

Announcement
131.121.0.0/16
No RPKI
Announced by
AS668
Type
Business
Risk
0 / 100 · Low

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
131.121.0.0/1665,536NADNUnited States Department of Defense (DoD) (USDDD) · USDirect AllocationNov 17, 1988[email protected]
└ 131.121.0.0/1665,536NADNNavy Network Information Center (NNIC) (NNICN-1) · USReallocatedAug 14, 2025—

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 131.121.0.0/16

Prefix
131.121.0.0/16
Announced by
AS668 United States Department of Defense (DoD)
Type
Business
RPKI
No RPKI
Netname
NADN
Registrant
Navy Network Information Center (NNIC)
RIR
ARIN
Registry

Holder

Organization
United States Department of Defense (DoD)
Handle
USDDD
Range
131.121.0.0/16
Registration type
Direct Allocation
Record created
Nov 17, 1988
Legacy
yes
Reallocated to
Navy Network Information Center (NNIC) (NNICN-1)
Reallocated
Aug 14, 2025
Origin network

AS668

US
Name
United States Department of Defense (DoD)
Type
Business
Registered
Apr 24, 1990
Domain
mail.mil
Website
www.hpc.mil/solution-areas/networking
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed