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Data as of Nov 7, 2026

66.37.32.0/23

No anonymizer space · no proxy exits in 30 days

Crown Castle Fiber LLC · space held by Zayo Bandwidth

Announcement
this exact prefix
No RPKI
Announced by
AS46887
Type
Internet provider
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
66.37.32.0/20
since Nov 2013
AS46887Internet provider1Zayo Bandwidth

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
66.37.32.0/204,096ZAYO-CCF-66-37-32-0Zayo Bandwidth (ZAYOB) · USDirect AllocationOct 24, 2013abuse@zayo.com
└ 66.37.32.16/298LTF-LT-508-66-37-32-16-29unknown———
└ 66.37.32.64/298LTF--66-37-32-64-29unknown———
└ 66.37.32.88/298LTF--66-37-32-88-29unknown———
└ 66.37.32.96/298LTF--66-37-32-96-29unknown———
└ 66.37.32.104/298LTF--66-37-32-104-29unknown———
└ 66.37.32.112/298LTF--66-37-32-112-29unknown———
└ 66.37.32.120/298LTF--66-37-32-120-29unknown———
└ 66.37.32.208/2816LTF-LT-797-66-37-32-208-28unknown———
└ 66.37.33.32/2732LTF--66-37-33-32-27unknown———
└ 66.37.33.128/2816LTF--66-37-33-128-28unknown———
└ 66.37.33.144/298NET-66-37-33-144-29unknown———
└ 66.37.33.208/2816LTF--66-37-33-208-28unknown———
└ 66.37.33.224/2732LTF--66-37-33-224-27unknown———

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS46887

US
Name
Crown Castle Fiber LLC
Type
Internet provider
Registered
Apr 13, 2009
Domain
zayo.com
Website
www.crowncastle.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed