Data as of Nov 5, 2026

172.85.44.0/23

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
Type
Internet provider
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
172.85.32.0/19
since May 2015
AS46887Internet provider4Zayo 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
172.85.32.0/198,192ZAYO-CCF-172-85-32-0Zayo Bandwidth (ZAYOB) · USDirect AllocationMay 18, 2015abuse@zayo.com
└ 172.85.44.64/2732NET-172-85-44-64-27unknown———
└ 172.85.44.96/2816NET-172-85-44-96-28unknown———
└ 172.85.44.128/25128LTF-LT-194-172-85-44-128-25unknown———
└ 172.85.45.32/2732NET-172-85-45-32-27unknown———
└ 172.85.45.72/298NET-172-85-45-72-29unknown———
└ 172.85.45.96/2732NET-LT-646-172-85-45-96-27unknown———
└ 172.85.45.192/2732NET-LT-467-172-85-45-192-27unknown———
└ 172.85.45.224/2732NET-LT-467-172-85-45-224-27unknown———

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