LAYER3 INTEL
Get started
Sign in
Data as of Nov 8, 2026

66.6.216.0/24

No anonymizer space · no proxy exits in 30 days

Tierzero

Announcement
66.6.208.0/20
No RPKI
Announced by
AS11509
Type
Internet provider
88% of it

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
66.6.208.0/204,096TIERZERO-700LATierzero (TIERZ) · USDirect AllocationFeb 23, 2004abuse@tierzero.com
└ 66.6.216.0/2732MMICMANLLCunknown———
└ 66.6.216.32/2732TIERZERO-1107744800unknown———
└ 66.6.216.64/2732TIERZERO-GLOBAL-1033unknown———
└ 66.6.216.96/2816TIERZERO-GLOBAL-1034unknown———
└ 66.6.216.112/2816TIERZERO-GLOBAL-1341unknown———
└ 66.6.216.128/2816TIERZERO-GLOBAL-1028unknown———
└ 66.6.216.144/2816TIERZERO-GLOBAL-1533unknown———
└ 66.6.216.160/2732TIERZERO-1107744928unknown———
└ 66.6.216.192/2816TIERZERO-GLOBAL-1030unknown———
└ 66.6.216.208/2816TIERZERO-GLOBAL-1534unknown———
└ 66.6.216.224/298TIERZERO-GLOBAL-1031unknown———
└ 66.6.216.232/298TIERZERO-1107745000unknown———
└ 66.6.216.240/298TIERZERO-GLOBAL-1251unknown———
└ 66.6.216.248/298TIERZERO-GLOBAL-1258unknown———

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

256 addresses
TypeAddressesShareRanges
Internet provider22488%1
Business3213%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 66.6.208.0/20

Prefix
66.6.208.0/20
Announced by
AS11509 Tierzero
Type
Internet provider
RPKI
No RPKI
Netname
TIERZERO-700LA
Registrant
Tierzero
RIR
ARIN
Origin network

AS11509

US
Name
Tierzero
Type
Internet provider
Registered
Sep 15, 1998
Domain
tierzero.com
Website
www.tierzero.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed