LAYER3 INTEL
Get started
TripwireIntel APIIP IntelPricingBlogDocsContactSign in
Data as of Nov 3, 2026

151.181.52.0/22

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
62% of it

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
151.181.32.0/19
since Dec 2018
AS46887Internet provider33
3 always on
Zayo Bandwidth
More specific

Announcements inside

PrefixOriginTypeHolderRPKI
151.181.53.0/24
since Nov 2020
AS29822HostingZayo 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
151.181.32.0 - 151.181.95.25516,384ZAYO-CCF-151-181-32-0Zayo Bandwidth (ZAYOB) · USDirect AllocationDec 20, 2013[email protected]
└ 151.181.52.0/304THE-ARC-MERCERunknown———
└ 151.181.52.4/304BROADRIDGE-FINANCIAL-SERVICESunknown———
└ 151.181.52.8/298BROADRIDGE-FINANCIAL-SERVICESunknown———
└ 151.181.52.16/304WESTSIDE-FAMILY-HEALTHCAREunknown———
└ 151.181.52.20/304SUSSEX-COUNTYunknown———
└ 151.181.52.24/304BL-COMPANIES-5unknown———
└ 151.181.52.28/312NANTICOKE-HEALTH-SERVICESunknown———
└ 151.181.52.30/312ARCHMERE-ACADEMYunknown———
└ 151.181.52.32/298BL-COMPANIES-PHILADELPHIAunknown———
└ 151.181.52.40/298FIBERTECH-TURNUP-PHLAunknown———
└ 151.181.52.48/298CONAIR-CORPORATIONunknown———
└ 151.181.52.56/298BURRIS-LOGISTICS-INC1unknown———
└ 151.181.52.64/2664SOUTH-JERSEY-INDUSTRIESunknown———
└ 151.181.52.128/298GHRBunknown———
└ 151.181.52.216/298NET-151-181-52-216-29unknown———
└ 151.181.52.236/304NET-CCF--0-151-181-52-236-30unknown———
└ 151.181.53.0/24256NET-0-151-181-53-0-24Princeton Hosted Solutions (C07693838) · USReassignedNov 24, 2020[email protected]
via ZAYO-CCF-151-181-32-0
└ 151.181.54.40/298NET-0-151-181-54-40-29unknown———
└ 151.181.54.48/298NET-151-181-54-48-29unknown———
└ 151.181.54.80/298NET-151-181-54-80-29unknown———
└ 151.181.54.96/2732LTF--151-181-54-96-27unknown———
└ 151.181.54.128/2816NET-0-151-181-54-128-28unknown———
└ 151.181.54.144/298NET-151-181-54-144-29unknown———
└ 151.181.54.160/2732NET-151-181-54-160-27unknown———
└ 151.181.55.64/2732NET-151-181-55-64-27unknown———
└ 151.181.55.120/298NET-SD-50975-151-181-55-120-29unknown———
└ 151.181.55.224/2732NET-151-181-55-224-27unknown———

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

Composition

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

Announced space

Address share

Announced space

Types across the prefix

1,024 addresses
TypeAddressesShareRanges
Internet provider63262%2
Hosting25625%1
Business13613%14

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