LAYER3 INTEL
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Data as of Nov 8, 2026

192.240.128.0/20

No anonymizer space · no proxy exits in 30 days

United States Department of Defense (DoD)

Announcement
this exact prefix
No RPKI
Announced by
AS721
Type
Business

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

PrefixOriginTypeHolderRPKI
192.240.128.0/24
since Apr 2025
AS5927BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.129.0/24
since May 2010
AS721BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.130.0/24
since Oct 2025
AS5927BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.131.0/24
since Oct 2025
AS5927BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.132.0/24
since May 2017
AS5927BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.133.0/24
since Oct 2025
AS5927BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.134.0/24
since Oct 2022
AS5927BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.135.0/24
since Apr 2026
AS5927BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.137.0/24
since Mar 2009
AS5927BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.138.0/24
since Mar 2014
AS5927BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.139.0/24
since Jun 2013
AS5927BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.140.0/24
since Sep 2016
AS5927BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.141.0/24
since Feb 2016
AS5927BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.142.0/24
since Apr 2008
AS5927BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
192.240.143.0/24
since Aug 2005
AS5927BusinessUnited 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
192.240.128.0 - 192.240.147.2555,120NETBLK-DLAUnited States Department of Defense (DoD) (USDDD) · USDirect AllocationOct 22, 1992disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 192.240.128.0 - 192.240.147.2555,120NETBLK-DLADoD Network Information Center (DNIC) · USReallocatedAug 26, 2025disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 192.240.136.0/24256DISN-IP-ACCESS-1-6unknown———
└ 192.240.143.0/24256NIC-COLSDoD Network Information Center (DNIC) · USReassignedAug 26, 2025disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil

Network & registry

AnnouncementRouting historyWhois & abuse
Registry

Holder

Organization
United States Department of Defense (DoD)
Handle
USDDD
Range
192.240.128.0 - 192.240.147.255
Registration type
Direct Allocation
Record created
Oct 22, 1992
Legacy
yes
Reallocated to
DoD Network Information Center (DNIC)
Reallocated
Aug 26, 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