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Data as of Nov 9, 2026

205.179.128.0/18

Anonymizer · ISP proxy

Charter Communications Inc · space held by GTT Americas, LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS20001
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
GTT Americas, LLC
record created Mar 20, 1995 · reallocated to IPNetZone Dec 21, 2025
2 · Leased from
IPNetZone
for its owner GTT Americas, LLC
3 · Announced by
AS20001 Charter Communications Inc
since Jan 2026 · 10 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 205.179.128.0/18/24s
IPNetZone
16,384100%
64
Leased from

Owners leasing their own space

NameIn 205.179.128.0/18/24s
GTT Americas, LLC
16,384100%
64

Lineage

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

205.179.128.0/18

From the registry to its use

  1. Mar 20, 1995
    Registry record
    GTT Americas, LLC
    Direct Allocation (legacy, pre-1997)
    205.179.0.0/16
  2. May 9, 2005– Nov 9, 2007
    Announced
    AS7455 Motorists Mutual Insurance Company
    as part of 205.179.0.0/16
    205.179.0.0/16
  3. Nov 15, 2007– Jan 29, 2024
    Announced
    AS4565 GTT Americas, LLC
    as part of 205.179.0.0/16
    205.179.0.0/16
  4. Jan 18, 2024– today
    Announced
    AS3257 GTT Communications Inc.
    as part of 205.179.0.0/16
    205.179.0.0/16
  5. Dec 21, 2025
    Reallocated
    IPNetZone
    Reallocated
    205.179.128.0/18
  6. Dec 21, 2025
    Route object
    AS20001 Charter Communications Inc
    ARIN route object for AS20001 Charter Communications Inc, maintainer MNT-GAL-104
  7. Jan 19, 2026– today
    Announced
    AS20001 Charter Communications Inc
    Internet provider
  8. Jan 22, 2026
    Route object
    AS20001 Charter Communications Inc
    RADB route object for AS20001 Charter Communications Inc, maintainer MAINT-RR
  9. today
    Leased from
    IPNetZone
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
205.179.0.0/16
since Jan 2024
AS3257Internet provider17GTT Americas, 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
205.179.0.0/1665,536MEGAPATH-BLK-27GTT Americas, LLC (GAL-104) · USDirect AllocationMar 20, 1995abuse@gtt.net
└ 205.179.128.0/1816,384GTT-CUSTOMERIPNetZone (IPNET-1) · USReallocatedDec 21, 2025ipabuse@unsi.net
└ 205.179.128.0/204,096RCN-GTTRCN (RTSL-6) · USReallocatedOct 23, 2026abuse@rcn.com
└ 205.179.144.0/204,096RCN-GTTRCN (RTSL-6) · USReallocatedOct 23, 2026abuse@rcn.com
└ 205.179.160.0/204,096RCN-GTTRCN (RTSL-6) · USReallocatedOct 23, 2026abuse@rcn.com
└ 205.179.176.0/204,096RCN-GTTRCN (RTSL-6) · USReallocatedOct 23, 2026abuse@rcn.com

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
GTT Americas, LLC
Handle
GAL-104
Range
205.179.0.0/16
Registration type
Direct Allocation
Record created
Mar 20, 1995
Legacy
yes
Reallocated to
IPNetZone (IPNET-1)
Reallocated range
205.179.128.0/18
Reallocated
Dec 21, 2025
Origin network

AS20001

US
Name
Charter Communications Inc
Type
Internet provider
Registered
Mar 13, 2001
Domain
charter.com
Website
www.spectrum.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed