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Data as of Nov 9, 2026

173.225.56.0/24

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
AS46887
Type
Business
91% of it

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
173.225.56.0/22
since Nov 2021
AS46887Internet providerZayo Bandwidth
173.225.48.0/20
since Oct 2025
AS46887Internet provider7Zayo 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
173.225.48.0/204,096ZAYO-CCF-173-225-48-0Zayo Bandwidth (ZAYOB) · USDirect AllocationJan 26, 2010abuse@zayo.com
└ 173.225.56.0/304BESTPASS-INCunknown———
└ 173.225.56.4/304NYS-SENATEunknown———
└ 173.225.56.8/304RAILEXunknown———
└ 173.225.56.12/304CD-PERRYunknown———
└ 173.225.56.16/304NEW-YORK-STATE-TEACHERS-RETIREMENT-SYSTEMunknown———
└ 173.225.56.20/304NEW-YORK-STATE-TEACHERS-RETIREMENT-SYSTEMunknown———
└ 173.225.56.24/298MADISON-WEALTH-MANAGERS-LLCunknown———
└ 173.225.56.32/2732CITY-OF-SARATOGA-SPRINGSunknown———
└ 173.225.56.72/298BESTPASS-INCunknown———
└ 173.225.56.80/298ME-ENGINEERINGunknown———
└ 173.225.56.88/304172-RIVER-ST-ASSOC-LLCunknown———
└ 173.225.56.92/304MADISON-WEALTH-MANAGERS-LLCunknown———
└ 173.225.56.96/2816ME-ENGINEERINGunknown———
└ 173.225.56.112/298UNIFIED-COURT-SYSTEM-NYunknown———
└ 173.225.56.120/298FIBERTECH-NETWORKSunknown———
└ 173.225.56.128/2664KINNEY-AND-ASSOCIATESunknown———
└ 173.225.56.192/298ME-ENGINEERINGunknown———
└ 173.225.56.200/298CENTER-FOR-INTERNET-SECURITYunknown———
└ 173.225.56.208/2816NORTHEAST-ORTHOPEADICSunknown———
└ 173.225.56.224/2816BESTPASS-INCunknown———

Composition

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

Announced space

Address share

Announced space

Types across the prefix

256 addresses
TypeAddressesShareRanges
Business23291%20
Internet provider249.4%2

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