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Data as of Nov 9, 2026

144.121.244.0/22

1 residential-proxy exit · 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
1
0.10% 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

3 observations

Proxy providers listing exits

  • AnyIP
  • FloppyData

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
└ 144.121.244.0/2732NET-CCF--144-121-244-0-27unknown———
└ 144.121.244.32/298LTF--144-121-244-32-29unknown———
└ 144.121.244.40/298LTF--144-121-244-40-29unknown———
└ 144.121.244.48/298NET-CCF--144-121-244-48-29unknown———
└ 144.121.244.56/298NET-CCF-0-144-121-244-56-29unknown———
└ 144.121.244.64/298LTF--144-121-244-64-29unknown———
└ 144.121.244.72/298LTF--144-121-244-72-29unknown———
└ 144.121.244.80/298LTF--144-121-244-80-29unknown———
└ 144.121.244.88/298LTF--144-121-244-88-29unknown———
└ 144.121.244.96/298LTF--144-121-244-96-29unknown———
└ 144.121.244.104/298NET-CCF--144-121-244-104-29unknown———
└ 144.121.244.112/298LTF--144-121-244-112-29unknown———
└ 144.121.244.120/298LTF--144-121-244-120-29unknown———
└ 144.121.244.128/298NET-CCF-0-144-121-244-128-29unknown———
└ 144.121.244.136/298LTF-144-121-244-136-29unknown———
└ 144.121.244.144/298NET-CCF--144-121-244-144-29unknown———
└ 144.121.244.152/298LTF--144-121-244-152-29unknown———
└ 144.121.244.160/2732LTF-LT-434-144-121-244-160-27unknown———
└ 144.121.245.0/298LTF--144-121-245-0-29unknown———
└ 144.121.245.8/298NET-CCF--144-121-245-8-29unknown———
└ 144.121.245.16/2816LTF--144-121-245-16-28unknown———
└ 144.121.245.32/298LTF--144-121-245-32-29unknown———
└ 144.121.245.40/298NET-CCF--144-121-245-40-29unknown———
└ 144.121.245.48/298LTF--144-121-245-48-29unknown———
└ 144.121.245.56/298LTF--144-121-245-56-29unknown———
└ 144.121.245.64/2732LTF--144-121-245-64-27unknown———
└ 144.121.245.96/298NET-CCF-0-144-121-245-96-29unknown———
└ 144.121.245.104/298LTF--144-121-245-104-29unknown———
└ 144.121.245.112/2816LTF--144-121-245-112-28unknown———
└ 144.121.245.128/298NET-144-121-245-128-29unknown———
└ 144.121.245.144/298NET-CCF--144-121-245-144-29unknown———
└ 144.121.245.152/298NET-CCF--144-121-245-152-29unknown———
└ 144.121.245.192/2816LTF--144-121-245-192-28unknown———
└ 144.121.245.208/298NET-CCF-0-144-121-245-208-29unknown———
└ 144.121.245.216/298LTF-LT-638-144-121-245-216-29unknown———
└ 144.121.245.224/298LTF--144-121-245-224-29unknown———
└ 144.121.245.232/298LTF--144-121-245-232-29unknown———
└ 144.121.245.240/298NET-CCF--144-121-245-240-29unknown———
└ 144.121.245.248/298NET-Z-CCF--144-121-245-248-29unknown———
└ 144.121.246.64/2732NET-CCF--144-121-246-64-27unknown———
└ 144.121.246.96/2732NET-Z-CCF-0-144-121-246-96-27unknown———
└ 144.121.246.128/298NET-CCF--144-121-246-128-29unknown———
└ 144.121.246.136/304NET-CCF--144-121-246-136-30unknown———
└ 144.121.246.140/304NET-CCF-0-144-121-246-140-30unknown———
└ 144.121.246.144/304NET-Z-CCF--144-121-246-144-30unknown———
└ 144.121.246.148/304NET-Z-CCF-0-144-121-246-148-30unknown———
└ 144.121.246.160/2732LTF--144-121-246-160-27unknown———
└ 144.121.246.192/304NET-Z-CCF-0-144-121-246-192-30unknown———
└ 144.121.246.196/304NET-CCF-0-144-121-246-196-30unknown———
└ 144.121.246.200/298LTF--144-121-246-200-29unknown———
└ 144.121.246.208/298NET-Z-CCF--144-121-246-208-29unknown———
└ 144.121.246.224/298LTF-SD-49798-144-121-246-224-29unknown———
└ 144.121.246.232/298LTF--144-121-246-232-29unknown———
└ 144.121.246.240/298NET-Z-CCF--144-121-246-240-29unknown———
└ 144.121.247.8/298LTF--144-121-247-8-29unknown———
└ 144.121.247.16/298NET-CCF--144-121-247-16-29unknown———
└ 144.121.247.28/304NET-CCF--144-121-247-28-30unknown———
└ 144.121.247.32/298NET-CCF-0-144-121-247-32-29unknown———
└ 144.121.247.40/298LTF-0-144-121-247-40-29unknown———
└ 144.121.247.48/298LTF--144-121-247-48-29unknown———
└ 144.121.247.64/2664LTF--144-121-247-64-26unknown———
└ 144.121.247.128/298LTF-LT-614-144-121-247-128-29unknown———
└ 144.121.247.152/298NET-Z-CCF--144-121-247-152-29unknown———
└ 144.121.247.160/298LTF-SD-50652-144-121-247-160-29unknown———
└ 144.121.247.168/298NET-CCF-0-144-121-247-168-29unknown———
└ 144.121.247.176/298LTF--144-121-247-176-29unknown———
└ 144.121.247.184/298LTF--144-121-247-184-29unknown———
└ 144.121.247.192/2816LTF--144-121-247-192-28unknown———
└ 144.121.247.208/304LTF-LT-210-144-121-247-208-30unknown———
└ 144.121.247.216/298LTF--144-121-247-216-29unknown———
└ 144.121.247.224/2816LTF--144-121-247-224-28unknown———
└ 144.121.247.240/2816NET-Z-CCF--144-121-247-240-28unknown———

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