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Data as of Nov 8, 2026

144.121.252.0/22

2 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
2
0.20% of its addresses · 30 days
Spread
2 of 4
/24s with at least one exit
Providers
19
selling exits here
Oct 9, 2026 – Nov 7, 2026

Exits seen per day

216 observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
144.121.254.0/2401
144.121.255.0/2401

Proxy providers listing exits

  • AnyIP
  • BottingTools
  • Byteful
  • CatProxies
  • ColaProxy
  • EZProxies
  • FastProxy
  • FloppyData
  • Geonode
  • HideProxy
  • InfiniteProxies
  • LudaxProxy
  • NextProxy
  • NovaProxy
  • ProxiesVision
  • ProxyGeo
  • RainProxy
  • Thordata
  • TrueProxies

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
└ 144.121.252.24/304LTF-144-121-252-24-30unknown———
└ 144.121.252.28/304NET-CCF---144-121-252-28-30unknown———
└ 144.121.252.32/2732LTF--144-121-252-32-27unknown———
└ 144.121.252.80/298NET-CCF--0-144-121-252-80-29unknown———
└ 144.121.252.96/298LTF-0-144-121-252-96-29unknown———
└ 144.121.252.104/298NET-CCF---144-121-252-104-29unknown———
└ 144.121.252.112/298NET-CCF--LT-063-144-121-252-112-29unknown———
└ 144.121.252.120/298NET-CCF--0-144-121-252-120-29unknown———
└ 144.121.252.128/2732LTF-0-144-121-252-128-27unknown———
└ 144.121.252.160/304NET-CCF---144-121-252-160-30unknown———
└ 144.121.252.164/304NET-CCF--0-144-121-252-164-30unknown———
└ 144.121.252.168/298NET-CCF---144-121-252-168-29unknown———
└ 144.121.252.184/298NET-CCF---144-121-252-184-29unknown———
└ 144.121.252.192/298NET-CCF---144-121-252-192-29unknown———
└ 144.121.252.200/298NET-CCF--0-144-121-252-200-29unknown———
└ 144.121.252.208/304NET-CCF---144-121-252-208-30unknown———
└ 144.121.252.212/304NET-CCF---144-121-252-212-30unknown———
└ 144.121.252.216/298NET-CCF---144-121-252-216-29unknown———
└ 144.121.252.240/2816LTF--144-121-252-240-28unknown———
└ 144.121.253.0/298LTF--144-121-253-0-29unknown———
└ 144.121.253.8/298LTF--144-121-253-8-29unknown———
└ 144.121.253.16/298LTF--144-121-253-16-29unknown———
└ 144.121.253.24/298LTF-LT-614-144-121-253-24-29unknown———
└ 144.121.253.32/2816NET-144-121-253-32-28unknown———
└ 144.121.253.56/298LTF--144-121-253-56-29unknown———
└ 144.121.253.64/298LTF--144-121-253-64-29unknown———
└ 144.121.253.80/304NET-CCF---144-121-253-80-30unknown———
└ 144.121.253.88/304NET-CCF--144-121-253-88-30unknown———
└ 144.121.253.128/2816NET-CCF-0-144-121-253-128-28unknown———
└ 144.121.253.144/298NET-CCF---144-121-253-144-29unknown———
└ 144.121.253.152/298NET-CCF---144-121-253-152-29unknown———
└ 144.121.253.160/298NET-CCF---144-121-253-160-29unknown———
└ 144.121.253.176/298NET-CCF--0-144-121-253-176-29unknown———
└ 144.121.253.192/298NET-144-121-253-192-29unknown———
└ 144.121.253.200/298LTF-0-144-121-253-200-29unknown———
└ 144.121.253.208/298NET-CCF---144-121-253-208-29unknown———
└ 144.121.253.216/298NET-CCF--144-121-253-216-29unknown———
└ 144.121.253.228/304NET-CCF---144-121-253-228-30unknown———
└ 144.121.254.8/298NET-CCF--0-144-121-254-8-29unknown———
└ 144.121.254.16/298NET-CCF--0-144-121-254-16-29unknown———
└ 144.121.254.24/298NET-CCF---144-121-254-24-29unknown———
└ 144.121.254.32/2816LTF--144-121-254-32-28unknown———
└ 144.121.254.48/298NET-CCF---144-121-254-48-29unknown———
└ 144.121.254.56/304NET-CCF---144-121-254-56-30unknown———
└ 144.121.254.64/298LTF--144-121-254-64-29unknown———
└ 144.121.254.72/298LTF--144-121-254-72-29unknown———
└ 144.121.254.80/304NET-CCF---144-121-254-80-30unknown———
└ 144.121.254.84/304NET-CCF---144-121-254-84-30unknown———
└ 144.121.254.88/304NET-CCF--144-121-254-88-30unknown———
└ 144.121.254.96/298NET-CCF---144-121-254-96-29unknown———
└ 144.121.254.104/298NET-CCF--0-144-121-254-104-29unknown———
└ 144.121.254.112/2816NET-CCF--0-144-121-254-112-28unknown———
└ 144.121.254.128/2816LTF--144-121-254-128-28unknown———
└ 144.121.254.160/2816NET-Z-CCF--144-121-254-160-28unknown———
└ 144.121.254.176/298NET-Z-CCF-0-144-121-254-176-29unknown———
└ 144.121.254.184/298NET-Z-CCF--144-121-254-184-29unknown———
└ 144.121.254.192/2816LTF-0-144-121-254-192-28unknown———
└ 144.121.254.208/2816LTF--144-121-254-208-28unknown———
└ 144.121.254.224/298LTF--144-121-254-224-29unknown———
└ 144.121.254.236/304NET-CCF--0-144-121-254-236-30unknown———
└ 144.121.254.240/298LTF-0-144-121-254-240-29unknown———
└ 144.121.254.248/298LTF--144-121-254-248-29unknown———
└ 144.121.255.0/2816LTF-0-144-121-255-0-28unknown———
└ 144.121.255.16/304NET-CCF---144-121-255-16-30unknown———
└ 144.121.255.28/304NET-Z-CCF-0-144-121-255-28-30unknown———
└ 144.121.255.32/298NET-CCF-LT-747-144-121-255-32-29unknown———
└ 144.121.255.40/298NET-CCF-0-144-121-255-40-29unknown———
└ 144.121.255.48/298NET-CCF-LT-747-144-121-255-48-29unknown———
└ 144.121.255.56/298NET-CCF--LT-747-144-121-255-56-29unknown———
└ 144.121.255.64/298NET-CCF---144-121-255-64-29unknown———
└ 144.121.255.76/304NET-CCF--0-144-121-255-76-30unknown———
└ 144.121.255.80/2816LTF--144-121-255-80-28unknown———
└ 144.121.255.96/2816NET-CCF--0-144-121-255-96-28unknown———
└ 144.121.255.112/298NET-CCF--0-144-121-255-112-29unknown———
└ 144.121.255.124/304NET-CCF---144-121-255-124-30unknown———
└ 144.121.255.128/2732LTF--144-121-255-128-27unknown———
└ 144.121.255.160/298LTF-0-144-121-255-160-29unknown———
└ 144.121.255.168/298LTF-GWYNEDD-MERCY-COLLEGE-144-121-255-168-29unknown———
└ 144.121.255.176/298NET-CCF---144-121-255-176-29unknown———
└ 144.121.255.184/298NET-CCF--0-144-121-255-184-29unknown———
└ 144.121.255.192/298NET-CCF---144-121-255-192-29unknown———
└ 144.121.255.200/298NET-CCF-0-144-121-255-200-29unknown———
└ 144.121.255.208/2816LTF--144-121-255-208-28unknown———
└ 144.121.255.224/2732NET-CCF--0-144-121-255-224-27unknown———

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