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Data as of Nov 7, 2026

199.122.39.0/24

No anonymizer space · no proxy exits in 30 days

United States Department of Defense (DoD)

Announcement

199.122.32.0/20

No RPKI

Announced by

Type

Business

Risk

0 / 100 · Low

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
199.122.32.0/19	8,192	DNOC-C	United States Department of Defense (DoD) (USDDD) · US	Direct Allocation	Mar 9, 1994	disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 199.122.32.0/19	8,192	DNOC-C	Headquarters, USAISC (HEADQU-3) · US	Reallocated	Aug 20, 2025	—
└ 199.122.39.0/24	256	DMC-S	unknown	—	—	—

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Announced by

Covering announcement 199.122.32.0/20

Prefix: 199.122.32.0/20
Announced by: AS721 United States Department of Defense (DoD)
Type: Business
RPKI: No RPKI
Netname: DNOC-C
Registrant: Headquarters, USAISC
RIR: ARIN

Registry

Holder

Organization: United States Department of Defense (DoD)
Handle: USDDD
Range: 199.122.32.0/19
Registration type: Direct Allocation
Record created: Mar 9, 1994
Legacy: yes
Reallocated to: Headquarters, USAISC (HEADQU-3)
Reallocated: Aug 20, 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