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Data as of Nov 4, 2026

66.45.192.0/19

No anonymizer space · no proxy exits in 30 days

Zayo Bandwidth

Announcement
this exact prefix
RPKI valid
Announced by
AS16503
Type
Internet provider
93% of it

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
66.45.192.0/198,192NWTIZayo Bandwidth (ZAYOB) · USDirect AllocationMay 9, 2002[email protected]
└ 66.45.208.8/298GOLDSGYMunknown———
└ 66.45.208.16/298FIRSTHOMEunknown———
└ 66.45.208.32/298MATTSONunknown———
└ 66.45.208.40/298CAREYMOTORSunknown———
└ 66.45.208.48/298SMITHunknown———
└ 66.45.208.56/298CAMPBELLSunknown———
└ 66.45.208.72/298METCALFEunknown———
└ 66.45.208.80/298NCRLIBRARYunknown———
└ 66.45.208.88/298DOTYunknown———
└ 66.45.208.96/298KUCHunknown———
└ 66.45.208.104/298OGDENunknown———
└ 66.45.208.112/298CWORKSunknown———
└ 66.45.208.120/298CRESAPunknown———
└ 66.45.208.128/298CNSunknown———
└ 66.45.208.136/298CVCHEALTHunknown———
└ 66.45.208.144/298CRMEDIAunknown———
└ 66.45.208.152/298CPAINTunknown———
└ 66.45.208.160/298CTECHunknown———
└ 66.45.208.168/298CSIunknown———
└ 66.45.208.176/298GAGEunknown———
└ 66.45.208.184/298APPLEVALLEYRENTALSunknown———
└ 66.45.208.192/298CDCHILDunknown———
└ 66.45.208.200/298WENATCHEEKIAunknown———
└ 66.45.208.208/298MCKINNEYunknown———
└ 66.45.208.216/298MILNERunknown———
└ 66.45.208.224/298NORTHWESTWHOLESALEunknown———
└ 66.45.208.232/298SMITHunknown———
└ 66.45.208.240/298WVDENTALunknown———
└ 66.45.208.248/298WENATCHEEWORLDunknown———
└ 66.45.209.8/298BOWENunknown———
└ 66.45.209.16/298COUNTRYCOunknown———
└ 66.45.209.24/298NWTELunknown———
└ 66.45.209.32/298SHAWunknown———
└ 66.45.209.40/298SCHROEDERunknown———
└ 66.45.209.48/298CHILDHSunknown———
└ 66.45.209.56/298UCSunknown———
└ 66.45.209.64/298CLAREunknown———
└ 66.45.209.72/298GARCIAunknown———
└ 66.45.209.80/298WENPETROLEUMunknown———
└ 66.45.209.88/298RAADunknown———
└ 66.45.209.96/298SOUNDTELECOMunknown———
└ 66.45.209.104/298COMPUTECHunknown———
└ 66.45.209.112/298CHELANPUDunknown———
└ 66.45.209.120/298WEINSTEINBEVERAGEunknown———
└ 66.45.209.128/298WENSCHOOLunknown———
└ 66.45.209.136/298CASCADEAUTOunknown———
└ 66.45.209.144/298CETTOunknown———
└ 66.45.209.152/298CWUCHELANunknown———
└ 66.45.209.160/298CLEARFOCUSunknown———
└ 66.45.210.16/2816JTEDUCATIONALunknown———
└ 66.45.210.32/2816NWTELunknown———
└ 66.45.210.48/2816WRGROUPunknown———
└ 66.45.210.80/2816JHAUTOunknown———
└ 66.45.210.96/2816HIEXPRESSunknown———
└ 66.45.210.112/2816CASCADEAUTOunknown———
└ 66.45.210.128/2816NWTELunknown———
└ 66.45.211.0/2732FAMILYHEALTHunknown———
└ 66.45.211.32/2732CWHOSPITALunknown———
└ 66.45.211.64/2732WENATCHEEWORLDunknown———
└ 66.45.212.0/24256GENEXTunknown———
└ 66.45.213.0/24256IXPRESSunknown———
└ 66.45.216.0/24256APPCAPunknown———
└ 66.45.217.0/24256APPCAPunknown———
└ 66.45.218.0/24256APPCAPunknown———
└ 66.45.219.0/24256APPLE-CAPITAL-APPCAPunknown———
└ 66.45.220.0/24256INTERMAXunknown———

Composition

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

Announced space

Address share

Announced space

Types across the prefix

8,192 addresses
TypeAddressesShareRanges
Internet provider7,59293%8
Business6007.3%59

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS16503

US
Name
Zayo Bandwidth
Type
Internet provider
Registered
May 4, 2000
Domain
zayo.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed