Data as of Nov 6, 2026

208.99.243.0/24

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
Unknown
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
208.99.240.0/21
since Nov 2021
AS46887Internet provider1Zayo 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
└ 208.99.243.0/24256FT1-EZ-WEB-ITEZ Web IT (C01952494) · USReassignedJun 24, 2008abuse@zayo.com
via ZAYO-CCF-208-99-240-0

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

Registry

Holder

Organization
Zayo Bandwidth
Handle
ZAYOB
Range
208.99.240.0/20
Registration type
Direct Allocation
Record created
May 13, 2008
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