LAYER3 INTEL
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Data as of Nov 11, 2026

192.187.4.0/22

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

More specific

Announcements inside

PrefixOriginTypeHolderRPKI
192.187.4.0/24
since May 2005
AS5860BusinessUnited States Department of Defense (DoD)
via Navy Network Information Center (NNIC)

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
192.187.4.0/24256SNAVNET1United States Department of Defense (DoD) (USDDD) · USDirect AllocationJun 23, 1992disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 192.187.4.0/24256SNAVNET1Navy Network Information Center (NNIC) (NNICN-1) · USReallocatedAug 15, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil
192.187.5.0/24256DNIC-RNET-192-187-005unknown———
└ 192.187.5.0/24256DNIC-RNET-192-187-005DoD Network Information Center (DNIC) · USAllocationSep 8, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil
192.187.6.0/24256DNIC-RNET-192-187-006unknown———
└ 192.187.6.0/24256DNIC-RNET-192-187-006DoD Network Information Center (DNIC) · USAllocationSep 8, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil
192.187.7.0/24256DNIC-RNET-192-187-007unknown———
└ 192.187.7.0/24256DNIC-RNET-192-187-007DoD Network Information Center (DNIC) · USAllocationSep 8, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil

Network & registry

AnnouncementRouting historyWhois & abuse
Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Stable
First seen
May 2005
Current origin since
Dec 2010 · 16 yr
Origin networks
2
Last change of origin
Dec 2010
Recorded history

History

Handoffs
2