LAYER3 INTEL
Get started
Sign in
Data as of Nov 7, 2026

208.99.240.0/20

5 residential-proxy exits · 30 days

Crown Castle Fiber LLC · space held by Zayo Bandwidth

Announcement
this exact prefix
No RPKI
Announced by
AS46887
Type
Business
49% of it

Residential-proxy exits

Proxy exits
5
0.12% of its addresses · 30 days
Always-on exits
1
20% of its exits
Spread
3 of 16
/24s with at least one exit
Providers
33
selling exits here
Oct 8, 2026 – Nov 6, 2026

Exits seen per day

2.1K observations
  • Business
  • Internet provider
  • Unknown

/24s with the most always-on exits

/24Always-on exitsProxy exits
208.99.255.0/2413
208.99.240.0/2401
208.99.251.0/2401

Proxy providers listing exits

  • 711Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BottingTools
  • Bright Data
  • BuyingProxy
  • ByteProxies
  • Byteful
  • ColaProxy
  • EnigmaProxy
  • FlexyProxies
  • FloppyData
  • Geonode
  • GloryCloud
  • GonzoProxy
  • IPFly
  • IPOasis
  • IPPeak
  • Infatica
  • InfiniteProxies
  • Kookey
  • LemonBright
  • NovaProxy
  • Oxylabs
  • ProxyEmpire
  • ProxyGeo
  • ProxyRack
  • RainProxy
  • ResiProxies
  • Thordata
  • VantageProxies
  • VitalExclusive

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

PrefixOriginTypeProxy exitsHolderRPKI
208.99.240.0/21
since Nov 2021
AS46887Internet provider1Zayo Bandwidth
208.99.240.0/24
since May 2019
AS46887Internet provider1Zayo Bandwidth
208.99.241.0/24
since Jun 2025
AS46887Internet providerZayo Bandwidth
208.99.242.0/24
since May 2019
AS46887Internet providerZayo Bandwidth
208.99.243.0/24
since Oct 2018
AS46887UnknownZayo Bandwidth
208.99.244.0/24
since May 2019
AS46887Internet providerZayo Bandwidth
208.99.245.0/24
since Oct 2025
AS46887Internet providerZayo Bandwidth
208.99.248.0/24
since Sep 2008
AS30367BusinessZayo Bandwidth
208.99.249.0/24
since Apr 2012
AS32830BusinessZayo Bandwidth
208.99.251.0/24
since May 2019
AS46887Internet provider1Zayo Bandwidth
208.99.252.0/22
since Nov 2021
AS46887Internet provider3
1 always on
Zayo Bandwidth
208.99.252.0/24
since May 2019
AS46887Internet providerZayo Bandwidth
208.99.253.0/24
since Oct 2025
AS46887Internet providerZayo Bandwidth
208.99.255.0/24
since May 2009
AS13510Unknown3
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
└ 208.99.240.0/298PEOPLE-SYSTEMS-NECunknown———
└ 208.99.240.8/298SUNY-UPSTATE-MEDICALunknown———
└ 208.99.240.24/298FIBERTECH-NETWORKSunknown———
└ 208.99.240.32/2732FT1-PYRAMID-MANAGEMENT-GROUPunknown———
└ 208.99.240.96/298OCM-BOCESunknown———
└ 208.99.240.104/304EXCELLUS-BLUECROSSunknown———
└ 208.99.240.108/304ELAUWIT-NETWORKSunknown———
└ 208.99.240.112/2816PYRAMID-MANAGEMENT-GROUPunknown———
└ 208.99.240.128/304ELAUWIT-NETWORKSunknown———
└ 208.99.240.132/304QUALTEKunknown———
└ 208.99.240.136/298JOBSPLUS-ONONDAGA-COMMUNITY-COLLEGEunknown———
└ 208.99.240.152/304ONE-SOURCE-NETWORKSunknown———
└ 208.99.240.156/304PLEXICOMM-LLCunknown———
└ 208.99.240.160/304NET-208-99-240-160-30unknown———
└ 208.99.240.164/304NET-208-99-240-164-30unknown———
└ 208.99.240.168/298NET-208-99-240-168-29unknown———
└ 208.99.240.192/2664NET-208-99-240-192-26unknown———
└ 208.99.241.0/2732BPA-WORLDWIDEunknown———
└ 208.99.241.32/2816NUZZO-AND-ROBERTSunknown———
└ 208.99.241.48/2816BL-COMPANIES-3unknown———
└ 208.99.241.64/298MIDDLESEX-CARDIOLOGY-ASSOCIATESunknown———
└ 208.99.241.72/298ENVIRONMENTAL-DATA-RESOURCES-INCunknown———
└ 208.99.241.80/2816BRIDGEPORT-PUBLIC-SCHOOLSunknown———
└ 208.99.241.96/2816TOWN-OF-HAMDENunknown———
└ 208.99.241.112/298CAROL-AGRIA-CPAunknown———
└ 208.99.241.120/304CSC-COMPUTER-SCIENCE-USunknown———
└ 208.99.241.136/304CHIMENETunknown———
└ 208.99.241.140/304DESIMONE-CONSULTING-ENGINEERSunknown———
└ 208.99.241.144/298OEM-CONTROLSunknown———
└ 208.99.241.152/298FIBERTECH-NETWORKSunknown———
└ 208.99.241.160/298PAS-TECHNOLOGIESunknown———
└ 208.99.241.168/298HUBBELL-INCunknown———
└ 208.99.241.176/2816SCHMITT-SUSSMAN-ENTERPRISES-INC-DBA-PFPunknown———
└ 208.99.241.192/2732HOUSING-AUTHORITY-OF-THE-CITY-OF-NEW-HAVENunknown———
└ 208.99.241.224/2732TRANSMONDE-USA-INCunknown———
└ 208.99.242.16/298MAPCO-AUTO-PARKSunknown———
└ 208.99.242.24/298FT1-CATHOLIC-FAMILY-CENTERunknown———
└ 208.99.242.32/298NAZARETH-COLLEGEunknown———
└ 208.99.242.48/298FT2-CATHOLIC-FAMILY-CENTERunknown———
└ 208.99.242.56/298YELLOW-PAGE-CITYunknown———
└ 208.99.242.64/2816PHARMA-SMART-INTERNATIONAL-INCunknown———
└ 208.99.242.80/304HARLEY-SCHOOLunknown———
└ 208.99.242.88/298MENGEL-METZGER-BARR-CO--LLPunknown———
└ 208.99.242.96/2732HARLEY-SCHOOLunknown———
└ 208.99.242.128/298CYNERGY-SYSTEMS-INCunknown———
└ 208.99.242.136/298ME-ENGINEERINGunknown———
└ 208.99.242.144/2816ME-ENGINEERINGunknown———
└ 208.99.242.160/298FT1-XELIC-INCunknown———
└ 208.99.242.168/298HARRIS-INTERACTIVEunknown———
└ 208.99.242.176/298IRONDEQUOIT-PUBLIC-LIBRARYunknown———
└ 208.99.242.184/298GREENLIGHT-NETWORKSunknown———
└ 208.99.242.192/298MENGEL-METZGER-BARR-AND-CO-LLPunknown———
└ 208.99.242.200/298EXCELLUS-BLUECROSSunknown———
└ 208.99.242.208/298CENTRILOGICunknown———
└ 208.99.242.216/298EMPIRE-ACCESSunknown———
└ 208.99.242.224/2816ROCHESTER-IMMEDIATE-CAREunknown———
└ 208.99.242.240/2816FIBERTECH-NETWORKS---SPEEDTEST-SERVERunknown———
└ 208.99.243.0/24256FT1-EZ-WEB-ITEZ Web IT (C01952494) · USReassignedJun 24, 2008abuse@zayo.com
via ZAYO-CCF-208-99-240-0
└ 208.99.244.0/298ONE-SOURCE-NETWORKSunknown———
└ 208.99.244.8/304LOVESACunknown———
└ 208.99.244.12/304REPRODUCTIVE-MEDICINE-ASSOCIATESunknown———
└ 208.99.244.16/2816LOVESACunknown———
└ 208.99.244.32/2732REPRODUCTIVE-MEDICINE-ASSOCIATESunknown———
└ 208.99.244.64/2732NEWOAK-CAPITAL-LLCunknown———
└ 208.99.244.96/298REGIONAL-HOSPICE-OF-WESTERN-CTunknown———
└ 208.99.244.104/304ASTENBECK-CAPITAL-MANAGEMENTunknown———
└ 208.99.244.108/304MILFORD-HOSPITALunknown———
└ 208.99.244.112/2816MORAN-TOWING-CORPunknown———
└ 208.99.244.128/2732NETWORK-SYNERGYunknown———
└ 208.99.244.160/304ACRIM-ADVISORS-LLCunknown———
└ 208.99.244.164/304LIFECAREunknown———
└ 208.99.244.168/304VXCHNGEunknown———
└ 208.99.244.172/304LINDA-RUDERMAN-INTERIORS--INCunknown———
└ 208.99.244.176/304BETHEL-HEALTH-AND-REHAB-CENTER-LLCunknown———
└ 208.99.244.180/304AXIOM-INTERNATIONAL-INVESTORSunknown———
└ 208.99.244.184/298ENTHONE-DIVISION-OF-ALENTunknown———
└ 208.99.244.192/2816ENTHONE-DIVISION-OF-ALENTunknown———
└ 208.99.244.208/298CVW-BODY-DESIGN-CENTER-STAMFORDunknown———
└ 208.99.244.216/304CVW-BODY-DESIGN-CENTER-STAMFORDunknown———
└ 208.99.244.220/304KINGS-CAPITAL-LTDunknown———
└ 208.99.244.224/304REPRODUCTIVE-MEDICINE-ASSOCIATES-OF-CTunknown———
└ 208.99.244.228/304THE-JEWISH-HOME-FOR-THE-ELDERLY-STMunknown———
└ 208.99.244.232/304GERA-DANBURY-THE-MATRIX-CORP-CENTERunknown———
└ 208.99.244.236/304SASCO-CAPITALunknown———
└ 208.99.244.240/298CLEARSTRUCTURE-FINANCIAL-TECHNOLOOGY-LLCunknown———
└ 208.99.244.248/298FIBERTECH-TURNUP-SMFRunknown———
└ 208.99.245.0/25128FT1-ALGONQUIN-STUDIOSunknown———
└ 208.99.245.128/2816CATHOLIC-HEALTHunknown———
└ 208.99.245.160/2816AZEROSunknown———
└ 208.99.245.176/2816DELTA-SONICunknown———
└ 208.99.245.192/2732BENDERSON-DEVELOPMENTunknown———
└ 208.99.245.224/2732MCQUIRE-GROUPunknown———
└ 208.99.246.0/24256FT4-SHATTER-I-Tunknown———
└ 208.99.247.0/24256FT5-SHATTER-I-Tunknown———
└ 208.99.248.0/24256FT2-STRATEGIC-VALUE-PARTNERSStrategic Value Partners (C02005029) · USReassignedAug 4, 2008abuse@zayo.com
via ZAYO-CCF-208-99-240-0
└ 208.99.249.0/24256CT-COMPUTER-SERVICECT Computer Service (C02939030) · USReassignedFeb 27, 2012abuse@zayo.com
via ZAYO-CCF-208-99-240-0
└ 208.99.251.0/2816NET-208-99-251-0-28unknown———
└ 208.99.251.16/312KENNEDY-MEMORIAL-HOSPITALS-UNIVERSITY-MEDICALunknown———
└ 208.99.251.18/312CITY-OF-NEWARKunknown———
└ 208.99.251.20/312BURRIS-LOGISTICS-INCunknown———
└ 208.99.251.22/312FLIXFLINGunknown———
└ 208.99.251.24/312BUSINESS-LEADERS-EDGEunknown———
└ 208.99.251.26/312ATLANTICARE-HEALTH-SYSTEMunknown———
└ 208.99.251.32/2732220-S-MAIN-ST-2unknown———
└ 208.99.251.128/298NET-208-99-251-128-29unknown———
└ 208.99.251.144/298NET-CCF--0-208-99-251-144-29unknown———
└ 208.99.251.160/2732NET-LT-403-208-99-251-160-27unknown———
└ 208.99.251.240/2816NET-208-99-251-240-28unknown———
└ 208.99.252.0/2816CORECOMMODITY-MANAGEMENT-LLCunknown———
└ 208.99.252.16/304WESTPORT-WESTON-FAMILY-Yunknown———
└ 208.99.252.20/304FSC-CT-INCunknown———
└ 208.99.252.24/298WESTPORT-WESTON-FAMILY-Yunknown———
└ 208.99.252.32/2816MITCHELLSunknown———
└ 208.99.252.48/2816NORTH-MILL-EQUIPMENT-FINANCEunknown———
└ 208.99.252.64/2732FSC-CT-INCunknown———
└ 208.99.252.96/2732GERA-DANBURY-THE-MATRIX-CORP-CENTERunknown———
└ 208.99.252.128/2664GERA-DANBURY-THE-MATRIX-CORP-CENTERunknown———
└ 208.99.252.224/2816REPRODUCTIVE-MEDICINE-ASSOCIATESunknown———
└ 208.99.252.240/304NEWOAK-CAPITAL-LLCunknown———
└ 208.99.252.244/304REPRODUCTIVE-MEDICINE-ASSOCIATESunknown———
└ 208.99.252.248/298PITNEY-BOWESunknown———
└ 208.99.253.0/2664FIDELIS-CAREunknown———
└ 208.99.253.64/304FIDELIS-CAREunknown———
└ 208.99.253.68/304CATHOLIC-HEALTHunknown———
└ 208.99.253.72/298NET-208-99-253-72-29unknown———
└ 208.99.253.96/2732CATHOLIC-HEALTHunknown———
└ 208.99.253.128/2732THE-BUFFALO-BILLS-2unknown———
└ 208.99.253.160/2732NET-208-99-253-160-27unknown———
└ 208.99.254.0/24256MILFORD-HOSPITALunknown———
└ 208.99.255.0/24256BAYSTATE-HEALTH-INCBaystate Health Inc (C02129831) · USReassignedJan 12, 2009abuse@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.

Composition

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

Announced space

Address share

Announced space

Types across the prefix

4,096 addresses
TypeAddressesShareRanges
Business1,99649%114
Internet provider1,58839%18
Unknown51213%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