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Data as of Nov 8, 2026

144.121.192.0/22

4 residential-proxy exits · 30 days

Crown Castle Fiber LLC · space held by Zayo Bandwidth

Announcement
this exact prefix
No RPKI
Announced by
AS46887
Type
Internet provider
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
4
0.39% of its addresses · 30 days
Always-on exits
1
25% of its exits
Spread
2 of 4
/24s with at least one exit
Providers
25
selling exits here
Oct 9, 2026 – Nov 7, 2026

Exits seen per day

8.4K observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
144.121.195.0/2413
144.121.192.0/2401

Proxy providers listing exits

  • 711Proxy
  • 9Proxy
  • Ake.net
  • AnyIP
  • BottingTools
  • ByteProxies
  • Byteful
  • Decodo
  • FastProxy
  • FlashProxy
  • FloppyData
  • Geonode
  • LemonBright
  • NovaProxy
  • Novada
  • Oxylabs
  • ProxyEmpire
  • ProxyRack
  • Proxyma
  • RainProxy
  • Shifter
  • Thordata
  • VantageProxies
  • VitalExclusive
  • ZENPROXY_LITE

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
144.121.192.0/18
since Dec 2017
AS46887Internet provider43
8 always on
Zayo Bandwidth
144.121.0.0/16
since Nov 2021
AS46887Internet provider132
25 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
144.121.0.0/1665,536ZAYO-CCF-144-121-0-0Zayo Bandwidth (ZAYOB) · USDirect AllocationApr 29, 2016abuse@zayo.com
└ 144.121.192.0/2732NET-LT-048-144-121-192-0-27unknown———
└ 144.121.192.40/304NET-CCF---144-121-192-40-30unknown———
└ 144.121.192.68/304NET-CCF--LT-719-144-121-192-68-30unknown———
└ 144.121.192.80/298NET-144-121-192-80-29unknown———
└ 144.121.192.88/298NET-144-121-192-88-29unknown———
└ 144.121.192.96/298LTF--144-121-192-96-29unknown———
└ 144.121.192.104/298NET-CCF--144-121-192-104-29unknown———
└ 144.121.192.112/298LTF--144-121-192-112-29unknown———
└ 144.121.192.120/298NET-CCF--LT-719-144-121-192-120-29unknown———
└ 144.121.192.128/2732NET-144-121-192-128-27unknown———
└ 144.121.192.160/298NET-CCF--144-121-192-160-29unknown———
└ 144.121.192.168/298NET-SD-50960-144-121-192-168-29unknown———
└ 144.121.192.176/298NET-CCF--144-121-192-176-29unknown———
└ 144.121.192.192/298NET-144-121-192-192-29unknown———
└ 144.121.192.200/298NET-CCF--144-121-192-200-29unknown———
└ 144.121.192.224/298LTF-0-144-121-192-224-29unknown———
└ 144.121.192.240/298NET-144-121-192-240-29unknown———
└ 144.121.192.248/298NET-Z-CCF--144-121-192-248-29unknown———
└ 144.121.193.64/2816LTF--144-121-193-64-28unknown———
└ 144.121.193.80/298NET-Z-CCF--144-121-193-80-29unknown———
└ 144.121.193.88/298NET-Z-CCF--144-121-193-88-29unknown———
└ 144.121.193.96/2732NET-144-121-193-96-27unknown———
└ 144.121.193.128/298LTF--144-121-193-128-29unknown———
└ 144.121.193.136/298NET-CCF--144-121-193-136-29unknown———
└ 144.121.193.144/2816NET-CCF-144-121-193-144-28unknown———
└ 144.121.193.160/298LTF--144-121-193-160-29unknown———
└ 144.121.193.176/298LTF--144-121-193-176-29unknown———
└ 144.121.193.184/298LTF--144-121-193-184-29unknown———
└ 144.121.193.192/2732LTF--144-121-193-192-27unknown———
└ 144.121.193.224/304NET-CCF--144-121-193-224-30unknown———
└ 144.121.193.240/2816NET-CCF--144-121-193-240-28unknown———
└ 144.121.194.8/298NET-Z-CCF-0-144-121-194-8-29unknown———
└ 144.121.194.16/2816NET-CCF--144-121-194-16-28unknown———
└ 144.121.194.32/304NET-CCF--144-121-194-32-30unknown———
└ 144.121.194.36/304NET-144-121-194-36-30unknown———
└ 144.121.194.40/298LTF--144-121-194-40-29unknown———
└ 144.121.194.48/298NET-CCF--144-121-194-48-29unknown———
└ 144.121.194.64/2816LTF--144-121-194-64-28unknown———
└ 144.121.194.80/2816NET-CCF--144-121-194-80-28unknown———
└ 144.121.194.112/298NET-CCF--144-121-194-112-29unknown———
└ 144.121.194.128/2816NET-144-121-194-128-28unknown———
└ 144.121.194.148/304NET-CCF--144-121-194-148-30unknown———
└ 144.121.194.152/298NET-CCF--144-121-194-152-29unknown———
└ 144.121.194.160/2816NET-CCF---144-121-194-160-28unknown———
└ 144.121.194.176/298NET-CCF--144-121-194-176-29unknown———
└ 144.121.194.192/298NET-144-121-194-192-29unknown———
└ 144.121.194.200/298NET-CCF--144-121-194-200-29unknown———
└ 144.121.194.208/2816NET-144-121-194-208-28unknown———
└ 144.121.194.228/304NET-CCF--144-121-194-228-30unknown———
└ 144.121.194.232/298LTF-0-144-121-194-232-29unknown———
└ 144.121.194.240/298LTF--144-121-194-240-29unknown———
└ 144.121.195.0/2732NET-CCF--144-121-195-0-27unknown———
└ 144.121.195.40/304NET-CCF--144-121-195-40-30unknown———
└ 144.121.195.48/2816NET-144-121-195-48-28unknown———
└ 144.121.195.64/2816LTF--144-121-195-64-28unknown———
└ 144.121.195.80/298LTF--144-121-195-80-29unknown———
└ 144.121.195.96/298NET-144-121-195-96-29unknown———
└ 144.121.195.104/298NET-CCF--144-121-195-104-29unknown———
└ 144.121.195.112/298NET-CCF--144-121-195-112-29unknown———
└ 144.121.195.120/298NET-LT-717-144-121-195-120-29unknown———
└ 144.121.195.128/25128NET-144-121-195-128-25unknown———

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