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Data as of Nov 12, 2026

198.97.72.0/21

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
198.97.73.0/24
since May 2005
AS27046BusinessUnited States Department of Defense (DoD)
via DoD Network Information Center
198.97.79.0/24
since May 2005
AS84BusinessUnited 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
198.97.72.0/24256NAWCADNETunknown———
└ 198.97.72.0/24256NAWCADNETNavy Network Information Center (NNIC) (NNICN-1) · USAllocationAug 15, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil
198.97.73.0/24256DNIC-RNET-198-097-073United States Department of Defense (DoD) (USDDD) · USDirect AllocationApr 2, 1993disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 198.97.73.0/24256DNIC-RNET-198-097-073DoD Network Information Center (DNIC) · USReallocatedSep 11, 2025disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
198.97.74.0/24256DAASNET4unknown———
└ 198.97.74.0/24256DAASNET4DoD Network Information Center (DNIC) · USAllocationSep 11, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil
198.97.75.0/24256DNIC-RNET-198-097-075unknown———
└ 198.97.75.0/24256DNIC-RNET-198-097-075DoD Network Information Center (DNIC) · USAllocationSep 11, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil
198.97.76.0/24256DAASNET6unknown———
└ 198.97.76.0/24256DAASNET6DoD Network Information Center (DNIC) · USAllocationSep 11, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil
198.97.77.0/24256DNIC-198-97-77unknown———
└ 198.97.77.0/24256DNIC-198-97-77DoD Network Information Center (DNIC) · USAllocationSep 11, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil
198.97.78.0/24256ANSOC-RNET028unknown———
└ 198.97.78.0/24256ANSOC-RNET028Headquarters, USAISC (HEADQU-3) · USAllocationAug 25, 2025disa.columbus.ns.mbx.arin-registrations@mail.mil
198.97.79.0/24256NSWC-ATMTUnited States Department of Defense (DoD) (USDDD) · USDirect AllocationApr 8, 1993disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 198.97.79.0/24256NSWC-ATMTNavy Network Information Center (NNIC) (NNICN-1) · USReallocatedAug 15, 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