Data as of Nov 11, 2026

199.31.3.0/24

No anonymizer space · no proxy exits in 30 days

Air Force Systems Networking · space held by United States Department of Defense (DoD)

Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low

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
199.31.0.0/1665,536DNIC-NET-199-031United States Department of Defense (DoD) (USDDD) · USDirect AllocationNov 29, 1994disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 199.31.0.0/1665,536DNIC-NET-199-031DoD Network Information Center (DNIC) · USReallocatedSep 5, 2025disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil

Network & registry

Routing timeline

Who has announced this prefix

latest 12 of 16 stints
Summary

Routing history

Pattern
Rotating
First seen
May 2005
Current origin since
May 2025 · 1.5 yr
Origin networks
6
Last change of origin
Sep 2025
Recorded history

History

Stints on record
16
Handoffs
11