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Data as of Nov 9, 2026

144.121.240.0/22

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
1 of 4
/24s with at least one exit
Providers
2
selling exits here
Oct 10, 2026 – Nov 8, 2026

Exits seen per day

2 observations

Proxy providers listing exits

  • ColaProxy
  • FloppyData

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
└ 144.121.240.0/298NET-CCF--0-144-121-240-0-29unknown———
└ 144.121.240.8/298LTF-144-121-240-8-29unknown———
└ 144.121.240.16/2816LTF-144-121-240-16-28unknown———
└ 144.121.240.32/2732LTF-144-121-240-32-27unknown———
└ 144.121.240.64/2732NET-CCF---144-121-240-64-27unknown———
└ 144.121.240.96/2816NET-CCF-0-144-121-240-96-28unknown———
└ 144.121.240.112/304NET-CCF---144-121-240-112-30unknown———
└ 144.121.240.116/304NET-CCF--0-144-121-240-116-30unknown———
└ 144.121.240.120/298NET-CCF--0-144-121-240-120-29unknown———
└ 144.121.240.128/298LTF--144-121-240-128-29unknown———
└ 144.121.240.136/298LTF--144-121-240-136-29unknown———
└ 144.121.240.144/2816LTF-0-144-121-240-144-28unknown———
└ 144.121.240.160/298NET-CCF--144-121-240-160-29unknown———
└ 144.121.240.168/298NET-CCF--144-121-240-168-29unknown———
└ 144.121.240.176/2816LTF--144-121-240-176-28unknown———
└ 144.121.240.192/298LTF--144-121-240-192-29unknown———
└ 144.121.240.200/298LTF--144-121-240-200-29unknown———
└ 144.121.240.208/2816LTF--144-121-240-208-28unknown———
└ 144.121.240.224/304NET-CCF--0-144-121-240-224-30unknown———
└ 144.121.240.228/304NET-CCF--0-144-121-240-228-30unknown———
└ 144.121.240.232/298LTF--144-121-240-232-29unknown———
└ 144.121.240.240/298LTF-0-144-121-240-240-29unknown———
└ 144.121.240.248/298LTF--144-121-240-248-29unknown———
└ 144.121.241.0/298LTF-0-144-121-241-0-29unknown———
└ 144.121.241.16/298LTF-0-144-121-241-16-29unknown———
└ 144.121.241.24/298LTF-0-144-121-241-24-29unknown———
└ 144.121.241.32/2816NET-CCF--0-144-121-241-32-28unknown———
└ 144.121.241.48/298LTF--144-121-241-48-29unknown———
└ 144.121.241.64/304NET-CCF--0-144-121-241-64-30unknown———
└ 144.121.241.68/304NET-CCF--0-144-121-241-68-30unknown———
└ 144.121.241.72/298NET-CCF--0-144-121-241-72-29unknown———
└ 144.121.241.80/2816NET-CCF--0-144-121-241-80-28unknown———
└ 144.121.241.96/304NET-CCF--0-144-121-241-96-30unknown———
└ 144.121.241.100/304NET-CCF--0-144-121-241-100-30unknown———
└ 144.121.241.104/298NET-CCF--0-144-121-241-104-29unknown———
└ 144.121.241.112/298NET-CCF--0-144-121-241-112-29unknown———
└ 144.121.241.124/304NET-CCF--0-144-121-241-124-30unknown———
└ 144.121.241.128/2816NET-CCF--0-144-121-241-128-28unknown———
└ 144.121.241.144/304NET-CCF--0-144-121-241-144-30unknown———
└ 144.121.241.148/304NET-CCF---144-121-241-148-30unknown———
└ 144.121.241.152/298NET-CCF--0-144-121-241-152-29unknown———
└ 144.121.241.160/2732LTF--144-121-241-160-27unknown———
└ 144.121.241.192/2732LTF--144-121-241-192-27unknown———
└ 144.121.241.224/2816LTF--144-121-241-224-28unknown———
└ 144.121.241.240/298NET-CCF--0-144-121-241-240-29unknown———
└ 144.121.241.248/298LTF-144-121-241-248-29unknown———
└ 144.121.242.0/2732LTF--144-121-242-0-27unknown———
└ 144.121.242.32/298NET-CCF---144-121-242-32-29unknown———
└ 144.121.242.40/298NET-CCF--LT-078-144-121-242-40-29unknown———
└ 144.121.242.48/304NET-CCF--0-144-121-242-48-30unknown———
└ 144.121.242.52/304NET-CCF--0-144-121-242-52-30unknown———
└ 144.121.242.56/304NET-CCF---144-121-242-56-30unknown———
└ 144.121.242.60/304NET-CCF--0-144-121-242-60-30unknown———
└ 144.121.242.64/2664LTF--144-121-242-64-26unknown———
└ 144.121.242.136/298NET-CCF--0-144-121-242-136-29unknown———
└ 144.121.242.144/298LTF--144-121-242-144-29unknown———
└ 144.121.242.152/298LTF--144-121-242-152-29unknown———
└ 144.121.242.160/298NET-CCF--144-121-242-160-29unknown———
└ 144.121.242.168/304NET-CCF--0-144-121-242-168-30unknown———
└ 144.121.242.172/304NET-CCF--0-144-121-242-172-30unknown———
└ 144.121.242.176/2816LTF--144-121-242-176-28unknown———
└ 144.121.242.200/304NET-CCF--0-144-121-242-200-30unknown———
└ 144.121.242.204/304NET-CCF---144-121-242-204-30unknown———
└ 144.121.242.208/2816LTF--144-121-242-208-28unknown———
└ 144.121.242.224/2816LTF--144-121-242-224-28unknown———
└ 144.121.242.240/2816LTF--144-121-242-240-28unknown———
└ 144.121.243.0/2732LTF-LT-649-144-121-243-0-27unknown———
└ 144.121.243.32/2732LTF--144-121-243-32-27unknown———
└ 144.121.243.64/298NET-CCF---144-121-243-64-29unknown———
└ 144.121.243.72/298NET-CCF--0-144-121-243-72-29unknown———
└ 144.121.243.80/2816LTF--144-121-243-80-28unknown———
└ 144.121.243.96/304NET-CCF--0-144-121-243-96-30unknown———
└ 144.121.243.100/304NET-CCF--0-144-121-243-100-30unknown———
└ 144.121.243.104/304NET-CCF--0-144-121-243-104-30unknown———
└ 144.121.243.108/304NET-CCF---144-121-243-108-30unknown———
└ 144.121.243.112/298NET-CCF---144-121-243-112-29unknown———
└ 144.121.243.120/304NET-CCF--0-144-121-243-120-30unknown———
└ 144.121.243.124/304NET-CCF--0-144-121-243-124-30unknown———
└ 144.121.243.128/298NET-CCF---144-121-243-128-29unknown———
└ 144.121.243.136/304NET-CCF--0-144-121-243-136-30unknown———
└ 144.121.243.140/304NET-CCF--0-144-121-243-140-30unknown———
└ 144.121.243.144/2816LTF--144-121-243-144-28unknown———
└ 144.121.243.160/298NET-CCF---144-121-243-160-29unknown———
└ 144.121.243.168/298LTF--144-121-243-168-29unknown———
└ 144.121.243.176/2816LTF-144-121-243-176-28unknown———
└ 144.121.243.192/2732LTF-144-121-243-192-27unknown———
└ 144.121.243.224/298NET-CCF-144-121-243-224-29unknown———
└ 144.121.243.232/298LTF--144-121-243-232-29unknown———
└ 144.121.243.240/298LTF-0-144-121-243-240-29unknown———
└ 144.121.243.248/298LTF--144-121-243-248-29unknown———

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