LAYER3 INTEL
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Data as of Nov 3, 2026

55.71.220.0/22

No anonymizer space · no proxy exits in 30 days

Headquarters, USAISC · reallocated from United States Department of Defense (DoD)

Announcement
55.71.0.0/16
No RPKI
Announced by
AS1530
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
55.0.0.0/8AS721BusinessUnited States Department of Defense (DoD)
via Headquarters, USAISC

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
55.0.0.0/816,777,216CONUS-RCASUnited States Department of Defense (DoD) (USDDD) · USDirect AllocationOct 26, 1996[email protected]
└ 55.0.0.0/816,777,216CONUS-RCASHeadquarters, USAISC (HEADQU-3) · USReallocatedAug 20, 2025—

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 55.71.0.0/16

Prefix
55.71.0.0/16
Announced by
AS1530 Headquarters, USAISC
Type
Business
RPKI
No RPKI
Netname
CONUS-RCAS
Registrant
Headquarters, USAISC
RIR
ARIN
Registry

Holder

Organization
United States Department of Defense (DoD)
Handle
USDDD
Range
55.0.0.0/8
Registration type
Direct Allocation
Record created
Oct 26, 1996
Legacy
yes
Reallocated to
Headquarters, USAISC (HEADQU-3)
Reallocated
Aug 20, 2025
Origin network

AS1530

US
Name
Headquarters, USAISC
Type
Business
Registered
May 12, 2004
Domain
mail.mil
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed