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Data as of Nov 7, 2026

154.21.239.0/24

1 residential-proxy exit · 30 days

Solid Systems LLC · reallocated from Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS399275
Type
Hosting
Risk
50 / 100 · Medium

Residential-proxy exits

Proxy exits
1
0.39% of its addresses · 30 days
Providers
1
selling exits here
Oct 8, 2026 – Nov 6, 2026

Exits seen per day

3 observations

Proxy providers listing exits

  • CliProxy

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
154.21.0.0/16
since Sep 2018
AS174Internet provider286
45 always on
Cogent Communications, LLC

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
154.21.0.0/1665,536COGENT-154-21-16Cogent Communications, LLC (COGC) · USDirect AllocationFeb 5, 1992abuse@cogentco.com
└ 154.21.239.0/24256SOLIDSYS-CGNT-NET-8Solid Systems LLC (SSL-1126) · USReallocatedJan 11, 2024abuse@solidsystems.us
└ 154.21.239.0/24256SOLID-LOS-ANGELESSolid la (C10638571) · USReassignedJan 14, 2024abuse@solidsystems.us
via SOLIDSYS-CGNT-NET-8

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Cogent Communications, LLC
Handle
COGC
Range
154.21.0.0/16
Registration type
Direct Allocation
Record created
Feb 5, 1992
Legacy
yes
Reallocated to
Solid Systems LLC (SSL-1126)
Reallocated range
154.21.239.0/24
Reallocated
Jan 11, 2024
Origin network

AS399275

US
Name
Solid Systems LLC
Type
Hosting
Registered
Jan 22, 2021
Domain
solidsystems.us
Spamhaus ASN-DROP
not listed