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Data as of Nov 5, 2026

154.38.136.0/22

Anonymizer · ISP proxy

Frontier Communications of America, Inc. · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS5650
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Feb 5, 1992 · reallocated to Server Destroyers LLC Jul 28, 2021
2 · Leased from
Cogent Communications, LLC
its owner, directly
3 · Announced by
AS5650 Frontier Communications of America, Inc.
since Sep 2021 · 5.2 yr ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

Owners leasing their own space

NameIn 154.38.136.0/22/24s
Cogent Communications, LLC
1,024100%
4

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

154.38.136.0/22

From the registry to its use

  1. Feb 5, 1992
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    154.38.0.0/16
  2. Sep 15, 2006– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 154.36.0.0/14
    154.36.0.0/14
  3. Jul 28, 2021
    Reallocated
    Server Destroyers LLC
    Reallocated
    154.38.136.0/22
  4. Sep 6, 2021– today
    Announced
    AS5650 Frontier Communications of America, Inc.
    Internet provider
  5. Sep 15, 2021
    Route object
    AS5650 Frontier Communications of America, Inc.
    RADB route object for AS5650 Frontier Communications of America, Inc., maintainer MAINT-ADMIN-AS398373

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromProxy exitsRPKI
154.36.0.0/14
since Sep 2006
AS174Internet providerIP broker Aventice (part)2,121
269 always on

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
154.38.0.0/1665,536COGENT-154-38-16Cogent Communications, LLC (COGC) · USDirect AllocationFeb 5, 1992abuse@cogentco.com
└ 154.38.136.0/221,024SERVER-DESTROYERS-CGNT-NET-9Server Destroyers LLC (SDL-157) · USReallocatedJul 28, 2021serverdestroyers@gmail.com

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Cogent Communications, LLC
Handle
COGC
Range
154.38.0.0/16
Registration type
Direct Allocation
Record created
Feb 5, 1992
Legacy
yes
Reallocated to
Server Destroyers LLC (SDL-157)
Reallocated range
154.38.136.0/22
Reallocated
Jul 28, 2021
Origin network

AS5650

US
Name
Frontier Communications of America, Inc.
Type
Internet provider
Registered
Jul 25, 1995
Domain
verizonbusiness.com
Website
www.frontier.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed