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Data as of Nov 9, 2026

144.121.212.0/22

3 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
3
0.29% of its addresses · 30 days
Spread
2 of 4
/24s with at least one exit
Providers
25
selling exits here
Oct 10, 2026 – Nov 8, 2026

Exits seen per day

62 observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
144.121.215.0/2402
144.121.212.0/2401

Proxy providers listing exits

  • 711Proxy
  • 9Proxy
  • Ake.net
  • AnyIP
  • BottingTools
  • ByteProxies
  • Byteful
  • FlexyProxies
  • FloppyData
  • Geonode
  • InfiniteProxies
  • NodeMaven
  • NovaProxy
  • Novada
  • PrivateProxy
  • ProxyEmpire
  • ProxyGeo
  • ProxyRack
  • RainProxy
  • RealProxy
  • ResiProxies
  • Shifter
  • Thordata
  • VantageProxies
  • WealthProxies

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
144.121.192.0/18
since Dec 2017
AS46887Internet provider41
8 always on
Zayo Bandwidth
144.121.0.0/16
since Nov 2021
AS46887Internet provider129
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
└ 144.121.212.0/2816LTF--144-121-212-0-28unknown———
└ 144.121.212.16/2816NET-144-121-212-16-28unknown———
└ 144.121.212.36/304NET-CCF--0-144-121-212-36-30unknown———
└ 144.121.212.44/304NET-Z-CCF--144-121-212-44-30unknown———
└ 144.121.212.48/2816LTF--144-121-212-48-28unknown———
└ 144.121.212.64/2816LTF--144-121-212-64-28unknown———
└ 144.121.212.80/298NET-Z-CCF-0-144-121-212-80-29unknown———
└ 144.121.212.88/304NET-CCF--0-144-121-212-88-30unknown———
└ 144.121.212.112/2816LTF--144-121-212-112-28unknown———
└ 144.121.212.128/298LTF--144-121-212-128-29unknown———
└ 144.121.212.140/304NET-Z-CCF--144-121-212-140-30unknown———
└ 144.121.212.144/2816LTF--144-121-212-144-28unknown———
└ 144.121.212.160/298LTF--144-121-212-160-29unknown———
└ 144.121.212.168/298NET-144-121-212-168-29unknown———
└ 144.121.212.176/2816LTF--144-121-212-176-28unknown———
└ 144.121.212.200/298NET-CCF-0-144-121-212-200-29unknown———
└ 144.121.212.208/2816LTF--144-121-212-208-28unknown———
└ 144.121.212.224/2816NET-CCF--0-144-121-212-224-28unknown———
└ 144.121.212.244/304NET-CCF-0-144-121-212-244-30unknown———
└ 144.121.212.248/298LTF--144-121-212-248-29unknown———
└ 144.121.213.8/304NET-CCF--0-144-121-213-8-30unknown———
└ 144.121.213.16/298LTF--144-121-213-16-29unknown———
└ 144.121.213.24/304NET-Z-CCF--144-121-213-24-30unknown———
└ 144.121.213.32/2732LTF-LT-210-144-121-213-32-27unknown———
└ 144.121.213.64/2732LTF-LT-476-144-121-213-64-27unknown———
└ 144.121.213.96/2732LTF-LT-202-144-121-213-96-27unknown———
└ 144.121.213.128/2732NET-144-121-213-128-27unknown———
└ 144.121.213.160/2816LTF--144-121-213-160-28unknown———
└ 144.121.213.176/2816LTF--144-121-213-176-28unknown———
└ 144.121.213.208/298LTF-0-144-121-213-208-29unknown———
└ 144.121.213.216/298NET-CCF---144-121-213-216-29unknown———
└ 144.121.213.224/2816LTF--144-121-213-224-28unknown———
└ 144.121.213.240/2816NET-144-121-213-240-28unknown———
└ 144.121.214.4/304NET-CCF--144-121-214-4-30unknown———
└ 144.121.214.8/298LTF--144-121-214-8-29unknown———
└ 144.121.214.16/2816LTF--144-121-214-16-28unknown———
└ 144.121.214.32/298LTF--144-121-214-32-29unknown———
└ 144.121.214.40/298NET-CCF--0-144-121-214-40-29unknown———
└ 144.121.214.48/304NET-Z-CCF--144-121-214-48-30unknown———
└ 144.121.214.52/304NET-Z-CCF--144-121-214-52-30unknown———
└ 144.121.214.56/304NET-CCF---144-121-214-56-30unknown———
└ 144.121.214.60/304NET-CCF---144-121-214-60-30unknown———
└ 144.121.214.64/2816NET-CCF-GLOBAL-IP-144-121-214-64-28unknown———
└ 144.121.214.80/298NET-144-121-214-80-29unknown———
└ 144.121.214.88/298LTF--144-121-214-88-29unknown———
└ 144.121.214.96/298NET-CCF--144-121-214-96-29unknown———
└ 144.121.214.104/298NET-CCF-0-144-121-214-104-29unknown———
└ 144.121.214.112/298NET-CCF-0-144-121-214-112-29unknown———
└ 144.121.214.120/298NET-CCF-0-144-121-214-120-29unknown———
└ 144.121.214.128/298LTF--144-121-214-128-29unknown———
└ 144.121.214.136/298LTF--144-121-214-136-29unknown———
└ 144.121.214.144/298NET-CCF---144-121-214-144-29unknown———
└ 144.121.214.156/304NET-CCF-GLOBAL-IP-144-121-214-156-30unknown———
└ 144.121.214.160/2732NET-CCF-0-144-121-214-160-27unknown———
└ 144.121.214.192/2816NET-CCF---144-121-214-192-28unknown———
└ 144.121.214.208/298LTF-LT-638-144-121-214-208-29unknown———
└ 144.121.214.216/298LTF--144-121-214-216-29unknown———
└ 144.121.214.224/298LTF-0-144-121-214-224-29unknown———
└ 144.121.214.232/298NET-CCF---144-121-214-232-29unknown———
└ 144.121.214.240/298LTF--144-121-214-240-29unknown———
└ 144.121.214.248/298NET-CCF---144-121-214-248-29unknown———
└ 144.121.215.0/2732NET-144-121-215-0-27unknown———
└ 144.121.215.32/298LTF--144-121-215-32-29unknown———
└ 144.121.215.40/304NET-CCF--0-144-121-215-40-30unknown———
└ 144.121.215.44/304NET-CCF-0-144-121-215-44-30unknown———
└ 144.121.215.52/304NET-CCF---144-121-215-52-30unknown———
└ 144.121.215.56/298NET-CCF-0-144-121-215-56-29unknown———
└ 144.121.215.64/2816LTF-0-144-121-215-64-28unknown———
└ 144.121.215.80/298LTF--144-121-215-80-29unknown———
└ 144.121.215.88/298LTF--144-121-215-88-29unknown———
└ 144.121.215.96/298NET-CCF---144-121-215-96-29unknown———
└ 144.121.215.108/304NET-CCF--0-144-121-215-108-30unknown———
└ 144.121.215.112/2816LTF--144-121-215-112-28unknown———
└ 144.121.215.128/2732LTF--144-121-215-128-27unknown———
└ 144.121.215.160/298NET-CCF-144-121-215-160-29unknown———
└ 144.121.215.168/298LTF--144-121-215-168-29unknown———
└ 144.121.215.176/298LTF--144-121-215-176-29unknown———
└ 144.121.215.192/298LTF--144-121-215-192-29unknown———
└ 144.121.215.200/298LTF--144-121-215-200-29unknown———
└ 144.121.215.212/304NET-CCF--0-144-121-215-212-30unknown———
└ 144.121.215.216/298LTF--144-121-215-216-29unknown———
└ 144.121.215.224/298NET-CCF---144-121-215-224-29unknown———
└ 144.121.215.232/298LTF-0-144-121-215-232-29unknown———
└ 144.121.215.240/298NET-CCF-0-144-121-215-240-29unknown———
└ 144.121.215.248/298NET-CCF-0-144-121-215-248-29unknown———

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