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Data as of Nov 9, 2026

144.121.128.0/22

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
5
selling exits here
Oct 10, 2026 – Nov 8, 2026

Exits seen per day

15 observations

Proxy providers listing exits

  • 711Proxy
  • B2Proxy
  • BottingTools
  • IPFly
  • PuraRoute

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
144.121.128.0/19
since Jun 2016
AS46887Internet provider13
2 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
└ 144.121.128.0/298NET-CCF--0-144-121-128-0-29unknown———
└ 144.121.128.8/298NET-Z-CCF-0-144-121-128-8-29unknown———
└ 144.121.128.48/298NET-CCF---144-121-128-48-29unknown———
└ 144.121.128.64/298NET-Z-CCF--144-121-128-64-29unknown———
└ 144.121.128.72/298NET-CCF--SD-51192-144-121-128-72-29unknown———
└ 144.121.128.88/298LTF--144-121-128-88-29unknown———
└ 144.121.128.100/304NET-CCF--0-144-121-128-100-30unknown———
└ 144.121.128.104/298LTF--144-121-128-104-29unknown———
└ 144.121.128.116/304NET-CCF---144-121-128-116-30unknown———
└ 144.121.128.124/304NET-Z-CCF--144-121-128-124-30unknown———
└ 144.121.128.128/298NET-144-121-128-128-29unknown———
└ 144.121.128.136/298NET-144-121-128-136-29unknown———
└ 144.121.128.144/304NET-CCF--144-121-128-144-30unknown———
└ 144.121.128.160/2816LTF--144-121-128-160-28unknown———
└ 144.121.128.176/298NET-CCF--0-144-121-128-176-29unknown———
└ 144.121.128.184/298LTF-0-144-121-128-184-29unknown———
└ 144.121.128.216/298NET-144-121-128-216-29unknown———
└ 144.121.128.232/298NET-CCF--0-144-121-128-232-29unknown———
└ 144.121.128.248/298NET-CCF---144-121-128-248-29unknown———
└ 144.121.129.0/25128NET-144-121-129-0-25unknown———
└ 144.121.129.128/304NET-CCF---144-121-129-128-30unknown———
└ 144.121.129.144/2816LTF--144-121-129-144-28unknown———
└ 144.121.129.184/298NET-144-121-129-184-29unknown———
└ 144.121.129.192/298LTF--144-121-129-192-29unknown———
└ 144.121.129.232/304NET-CCF--144-121-129-232-30unknown———
└ 144.121.129.240/2816NET-CCF--0-144-121-129-240-28unknown———
└ 144.121.130.0/304NET-Z-CCF-0-144-121-130-0-30unknown———
└ 144.121.130.4/304NET-CCF---144-121-130-4-30unknown———
└ 144.121.130.8/298NET-CCF---144-121-130-8-29unknown———
└ 144.121.130.16/304NET-CCF--0-144-121-130-16-30unknown———
└ 144.121.130.20/304NET-CCF--0-144-121-130-20-30unknown———
└ 144.121.130.24/298NET-CCF--0-144-121-130-24-29unknown———
└ 144.121.130.40/304NET-CCF-0-144-121-130-40-30unknown———
└ 144.121.130.48/2816NET-CCF--144-121-130-48-28unknown———
└ 144.121.130.64/298LTF-144-121-130-64-29unknown———
└ 144.121.130.96/304NET-CCF-SD-50946-144-121-130-96-30unknown———
└ 144.121.130.104/298NET-CCF---144-121-130-104-29unknown———
└ 144.121.130.112/298NET-144-121-130-112-29unknown———
└ 144.121.130.128/298NET-CCF--0-144-121-130-128-29unknown———
└ 144.121.130.136/304NET-CCF--0-144-121-130-136-30unknown———
└ 144.121.130.140/304NET-CCF--0-144-121-130-140-30unknown———
└ 144.121.130.144/298NET-CCF--0-144-121-130-144-29unknown———
└ 144.121.130.152/304NET-CCF---144-121-130-152-30unknown———
└ 144.121.130.156/304NET-CCF--0-144-121-130-156-30unknown———
└ 144.121.130.196/304NET-CCF-0-144-121-130-196-30unknown———
└ 144.121.130.200/304NET-CCF--144-121-130-200-30unknown———
└ 144.121.130.204/304NET-CCF--0-144-121-130-204-30unknown———
└ 144.121.130.208/2816NET-CCF---144-121-130-208-28unknown———
└ 144.121.130.232/298LTF--144-121-130-232-29unknown———
└ 144.121.130.240/298NET-CCF--0-144-121-130-240-29unknown———
└ 144.121.130.248/298NET-CCF--0-144-121-130-248-29unknown———
└ 144.121.131.0/2732NET-CCF--144-121-131-0-27unknown———
└ 144.121.131.32/2816NET-SD-51183-144-121-131-32-28unknown———
└ 144.121.131.56/298NET-144-121-131-56-29unknown———
└ 144.121.131.64/298NET-CCF--0-144-121-131-64-29unknown———
└ 144.121.131.72/298NET-CCF---144-121-131-72-29unknown———
└ 144.121.131.80/298NET-CCF---144-121-131-80-29unknown———
└ 144.121.131.96/304NET-Z-CCF--144-121-131-96-30unknown———
└ 144.121.131.104/298NET-144-121-131-104-29unknown———
└ 144.121.131.112/298NET-CCF--144-121-131-112-29unknown———
└ 144.121.131.120/298NET-144-121-131-120-29unknown———
└ 144.121.131.128/2732NET-144-121-131-128-27unknown———
└ 144.121.131.160/304NET-CCF--144-121-131-160-30unknown———
└ 144.121.131.176/2816NET-144-121-131-176-28unknown———
└ 144.121.131.192/298NET-CCF---144-121-131-192-29unknown———
└ 144.121.131.212/304NET-CCF--0-144-121-131-212-30unknown———
└ 144.121.131.220/304NET-CCF--0-144-121-131-220-30unknown———
└ 144.121.131.224/298NET-144-121-131-224-29unknown———
└ 144.121.131.232/298LTF--144-121-131-232-29unknown———

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