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Data as of Nov 3, 2026

158.236.0.0/14

No anonymizer space

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

Arrived
PrefixOriginTypeHolderRPKI
158.236.0.0/17
since May 2024
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.236.128.0/17
since Jun 2026
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.237.0.0/16
since Apr 2021
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.238.0.0/16
since Apr 2021
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.239.0.0/20
since Jan 2026
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.239.32.0/19
since Dec 2025
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.239.64.0/18
since Apr 2023
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.239.128.0/17
since Sep 2024
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.239.144.0/22
since Jan 2025
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.239.161.0/24
since Jan 2025
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.239.168.0/23
since Feb 2025
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.239.170.0/23
since Apr 2025
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.239.174.0/23
since Apr 2025
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.239.176.0/22
since Aug 2026
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.239.180.0/22
since Jan 2025
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.239.188.0/22
since Jan 2025
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group
158.239.192.0/18
since Aug 2024
AS637BusinessUnited States Department of Defense (DoD)
via Marine Corps Cyberspace Operations Group

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
158.236.0.0/1665,536USMC2United States Department of Defense (DoD) (USDDD) · USDirect AllocationApr 8, 1992[email protected]
└ 158.236.0.0/1665,536USMC2Marine Corps Cyberspace Operations Group (UNOC) · USReallocatedAug 13, 2025[email protected]
158.237.0.0/1665,536USMC3United States Department of Defense (DoD) (USDDD) · USDirect AllocationApr 8, 1992[email protected]
└ 158.237.0.0/1665,536USMC3Marine Corps Cyberspace Operations Group (UNOC) · USReallocatedAug 13, 2025[email protected]
158.238.0.0/1665,536USMC4United States Department of Defense (DoD) (USDDD) · USDirect AllocationApr 8, 1992[email protected]
└ 158.238.0.0/1665,536USMC4Marine Corps Cyberspace Operations Group (UNOC) · USReallocatedAug 13, 2025[email protected]
158.239.0.0/1665,536USMC5United States Department of Defense (DoD) (USDDD) · USDirect AllocationApr 8, 1992[email protected]
└ 158.239.0.0/1665,536USMC5Marine Corps Cyberspace Operations Group (UNOC) · USReallocatedAug 13, 2025[email protected]

Network & registry

AnnouncementRouting historyWhois & abuse
Registry

Holder

Organization
Not stated by the registry
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