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Data as of Nov 3, 2026

72.245.128.0/21

Anonymizer · ISP proxy8 residential-proxy exits · 30 days

NTT America, Inc. · space held by GTT Americas, LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS2914
Type
ISP proxy
Risk
90 / 100 · Critical

Residential-proxy exits

Proxy exits
8
0.39% of its addresses · 30 days
Spread
3 of 8
/24s with at least one exit
Providers
11
selling exits here
Oct 4, 2026 – Nov 2, 2026

Exits seen per day

26 observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
72.245.129.0/2404
72.245.133.0/2402
72.245.132.0/2401

Proxy providers listing exits

  • Byteful
  • DataImpulse
  • GSocks
  • Geonix
  • Infatica
  • MangoProxy
  • NodeProxy
  • NovaProxy
  • Proxmint
  • Proxy-Seller
  • VitalExclusive
IPv4 market

Path

1 · Holder
GTT Americas, LLC
record created Mar 22, 2005 · reallocated to Arisk Communications inc. Aug 13, 2025
2 · Leased from
ARISK
for its owner GTT Americas, LLC
3 · Announced by
AS2914 NTT America, Inc.
since Aug 2025 · 15 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 72.245.128.0/21/24s
ARISK
2,048100%
8
Leased from

Owners leasing their own space

NameIn 72.245.128.0/21/24s
GTT Americas, LLC
2,048100%
8

Lineage

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

72.245.128.0/21

From the registry to its use

  1. Mar 22, 2005
    Registry record
    GTT Americas, LLC
    Direct Allocation
    72.244.0.0/15
  2. Sep 22, 2005– May 15, 2022
    Announced
    AS18566 GTT Americas, LLC
    as part of 72.244.0.0/15
    72.244.0.0/15
  3. Apr 29, 2023– Nov 2, 2026
    Announced
    AS3257 GTT Communications Inc.
    as part of 72.244.0.0/15
    72.244.0.0/15
  4. Aug 13, 2025
    Reallocated
    Arisk Communications inc.
    Reallocated
    72.245.128.0/21
  5. Aug 13, 2025
    Route object
    AS2914 NTT America, Inc.
    ARIN route object for AS2914 NTT America, Inc., maintainer MNT-GAL-104
  6. Aug 16, 2025– Nov 2, 2026
    Announced
    AS2914 NTT America, Inc.
    Internet provider
  7. Jun 18, 2026
    Route object
    AS32043 NeoFiber Communications inc.
    ARIN route object for AS32043 NeoFiber Communications inc., maintainer MNT-GAL-104
    72.245.131.0/24
  8. today
    Leased from
    ARISK
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromProxy exitsHolderRPKI
72.244.0.0/15
since Apr 2023
AS3257Internet providerIP broker IPXO (part)428
76 always on
GTT 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
72.244.0.0/15131,072MEGAPATH-BLK-63GTT Americas, LLC (GAL-104) · USDirect AllocationMar 22, 2005[email protected]
└ 72.245.128.0/212,048ARISK-GTTArisk Communications inc. (AC-5396) · USReallocatedAug 13, 2025[email protected]
└ 72.245.128.0/212,048GTTunknownReassignedJan 12, 2026[email protected]
via ARISK-GTT

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
GTT Americas, LLC
Handle
GAL-104
Range
72.244.0.0/15
Registration type
Direct Allocation
Record created
Mar 22, 2005
Reallocated to
Arisk Communications inc. (AC-5396)
Reallocated range
72.245.128.0/21
Reallocated
Aug 13, 2025
Origin network

AS2914

US
Name
NTT America, Inc.
Type
Internet provider
Registered
Dec 7, 1998
Domain
ntt.net
Website
www.gin.ntt.net/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed