Data as of Nov 6, 2026

208.99.252.0/24

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
Type
Business
88% of it

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
208.99.252.0/22
since Nov 2021
AS46887Internet provider3
1 always on
Zayo Bandwidth
208.99.240.0/20
since Oct 2025
AS46887Internet provider5
1 always on
Zayo 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
208.99.240.0/204,096ZAYO-CCF-208-99-240-0Zayo Bandwidth (ZAYOB) · USDirect AllocationMay 13, 2008abuse@zayo.com
└ 208.99.252.0/2816CORECOMMODITY-MANAGEMENT-LLCunknown———
└ 208.99.252.16/304WESTPORT-WESTON-FAMILY-Yunknown———
└ 208.99.252.20/304FSC-CT-INCunknown———
└ 208.99.252.24/298WESTPORT-WESTON-FAMILY-Yunknown———
└ 208.99.252.32/2816MITCHELLSunknown———
└ 208.99.252.48/2816NORTH-MILL-EQUIPMENT-FINANCEunknown———
└ 208.99.252.64/2732FSC-CT-INCunknown———
└ 208.99.252.96/2732GERA-DANBURY-THE-MATRIX-CORP-CENTERunknown———
└ 208.99.252.128/2664GERA-DANBURY-THE-MATRIX-CORP-CENTERunknown———
└ 208.99.252.224/2816REPRODUCTIVE-MEDICINE-ASSOCIATESunknown———
└ 208.99.252.240/304NEWOAK-CAPITAL-LLCunknown———
└ 208.99.252.244/304REPRODUCTIVE-MEDICINE-ASSOCIATESunknown———
└ 208.99.252.248/298PITNEY-BOWESunknown———

Composition

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

Announced space

Address share

Announced space

Types across the prefix

256 addresses
TypeAddressesShareRanges
Business22488%13
Internet provider3213%1

Network & registry

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