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Data as of Nov 6, 2026

216.57.136.0/21

13 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
38% of it

Residential-proxy exits

Proxy exits
13
0.63% of its addresses · 30 days
Always-on exits
2
15% of its exits
Spread
4 of 8
/24s with at least one exit
Providers
35
selling exits here
Oct 7, 2026 – Nov 5, 2026

Exits seen per day

6.4K observations
  • Residential
  • Business
  • Internet provider

/24s with the most always-on exits

/24Always-on exitsProxy exits
216.57.141.0/2423
216.57.140.0/2407
216.57.137.0/2402
216.57.136.0/2401

Proxy providers listing exits

  • Ake.net
  • AnyIP
  • BottingTools
  • ByteProxies
  • Byteful
  • CatProxies
  • ColaProxy
  • Decodo
  • EZProxies
  • EnigmaProxy
  • FastProxy
  • FlexyProxies
  • FloppyData
  • Geonode
  • GloryCloud
  • HideProxy
  • IPFly
  • InfiniteProxies
  • LemonBright
  • LudaxProxy
  • NovaProxy
  • Oxylabs
  • ProxiesVision
  • Proxiware
  • ProxyEmpire
  • ProxyGeo
  • ProxyRack
  • Proxyma
  • PuraRoute
  • RainProxy
  • Thordata
  • TrueProxies
  • VantageProxies
  • VitalExclusive
  • WealthProxies

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
216.57.128.0/19
since Nov 2021
AS46887Internet provider26
5 always on
Zayo Bandwidth
More specific

Announcements inside

PrefixOriginTypeProxy exitsHolderRPKI
216.57.136.0/23
since Mar 2025
AS46887Internet provider3Zayo Bandwidth
216.57.140.0/24
since Aug 2024
AS46887Residential7Zayo Bandwidth
216.57.141.0/24
since Aug 2024
AS46887Business3
2 always on
Zayo Bandwidth
216.57.142.0/24
since Mar 2017
AS395382BusinessZayo Bandwidth
216.57.143.0/24
since Sep 2024
AS33486BusinessZayo 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
216.57.128.0/198,192ZAYO-CCF-216-57-128-0Zayo Bandwidth (ZAYOB) · USDirect AllocationJun 7, 2000abuse@zayo.com
└ 216.57.136.32/2732VTP-SWIP-283unknown———
└ 216.57.136.64/2732NET-CCF---216-57-136-64-27unknown———
└ 216.57.136.96/298NET-CCF---216-57-136-96-29unknown———
└ 216.57.136.104/304NET-CCF---216-57-136-104-30unknown———
└ 216.57.136.108/304NET-CCF-0-216-57-136-108-30unknown———
└ 216.57.136.112/2816NET-CCF---216-57-136-112-28unknown———
└ 216.57.136.128/2732VTP-SWIP-284unknown———
└ 216.57.136.160/2732VTP-SWIP-285unknown———
└ 216.57.136.192/298NET-CCF--0-216-57-136-192-29unknown———
└ 216.57.136.200/304NET-CCF---216-57-136-200-30unknown———
└ 216.57.136.204/304NET-CCF--216-57-136-204-30unknown———
└ 216.57.136.208/2816NET-CCF--216-57-136-208-28unknown———
└ 216.57.136.224/298NET-CCF---216-57-136-224-29unknown———
└ 216.57.136.232/298NET-CCF--0-216-57-136-232-29unknown———
└ 216.57.136.240/2816NET-CCF--216-57-136-240-28unknown———
└ 216.57.137.0/298NET-CCF--0-216-57-137-0-29unknown———
└ 216.57.137.8/304NET-CCF---216-57-137-8-30unknown———
└ 216.57.137.12/304NET-CCF-216-57-137-12-30unknown———
└ 216.57.137.16/298NET-CCF---216-57-137-16-29unknown———
└ 216.57.137.24/298NET-CCF-0-216-57-137-24-29unknown———
└ 216.57.137.32/298NET-CCF--216-57-137-32-29unknown———
└ 216.57.137.40/298NET-CCF-0-216-57-137-40-29unknown———
└ 216.57.137.48/298NET-CCF-0-216-57-137-48-29unknown———
└ 216.57.137.56/298NET-CCF-0-216-57-137-56-29unknown———
└ 216.57.137.96/2732VTP-SWIP-287unknown———
└ 216.57.137.128/298NET-CCF--216-57-137-128-29unknown———
└ 216.57.137.136/298NET-CCF--216-57-137-136-29unknown———
└ 216.57.137.144/298NET-CCF-0-216-57-137-144-29unknown———
└ 216.57.137.152/298NET-CCF-0-216-57-137-152-29unknown———
└ 216.57.137.160/2732VTP-SWIP-288unknown———
└ 216.57.137.192/2732NET-CCF--216-57-137-192-27unknown———
└ 216.57.137.224/298NET-CCF-0-216-57-137-224-29unknown———
└ 216.57.137.232/298NET-CCF-0-216-57-137-232-29unknown———
└ 216.57.137.240/298NET-CCF-0-216-57-137-240-29unknown———
└ 216.57.137.248/298NET-CCF-0-216-57-137-248-29unknown———
└ 216.57.138.128/2732VTP-SWIP-290unknown———
└ 216.57.138.224/2732VTP-SWIP-291unknown———
└ 216.57.139.0/2732VTP-SWIP-292unknown———
└ 216.57.140.0/24256NET-CCF-216-57-140-0-24IQ Machines LLC (C10935945) · USReassignedAug 22, 2024abuse@zayo.com
via ZAYO-CCF-216-57-128-0
└ 216.57.141.0/24256NET-CCF-LT-083-216-57-141-0-24Dean College (C10941262) · USReassignedAug 28, 2024abuse@zayo.com
via ZAYO-CCF-216-57-128-0
└ 216.57.142.0/24256LVXY-110621-001Commonwealth Financial Network (C02749556) · USReassignedMay 4, 2011abuse@zayo.com
via ZAYO-CCF-216-57-128-0
└ 216.57.143.0/24256NET-CCF-0-216-57-143-0-24Alkermes, Inc. (C10980568) · USReassignedOct 8, 2024abuse@zayo.com
via ZAYO-CCF-216-57-128-0

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

2,048 addresses
TypeAddressesShareRanges
Business76838%10
Residential70434%5
Internet provider57628%6

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