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Data as of Nov 13, 2026

72.245.152.0/21

Anonymizer · ISP proxy13 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
13
0.63% of its addresses · 30 days
Spread
2 of 8
/24s with at least one exit
Providers
11
selling exits here
Oct 14, 2026 – Nov 12, 2026

Exits seen per day

116 observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
72.245.153.0/24012
72.245.159.0/2401

Proxy providers listing exits

  • Ake.net
  • ByteProxies
  • Byteful
  • DataImpulse
  • EVOPROXY
  • GSocks
  • Infatica
  • MangoProxy
  • NodeProxy
  • NovaProxy
  • Shifter
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 72.245.152.0/21/24s
ARISK
2,048100%
8
Leased from

Owners leasing their own space

NameIn 72.245.152.0/21/24s
GTT Americas, LLC
2,048100%
8

Lineage

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

72.245.152.0/21

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. Nov 1, 2005– Feb 22, 2024
    Announced
    AS18566 GTT Americas, LLC
  4. Apr 29, 2023– today
    Announced
    AS3257 GTT Communications Inc.
    as part of 72.244.0.0/15
    72.244.0.0/15
  5. Aug 4, 2025– Aug 15, 2025
    Announced
    AS3257 GTT Communications Inc.
    Internet provider
  6. Aug 13, 2025
    Reallocated
    Arisk Communications inc.
    Reallocated
    72.245.152.0/21
  7. Aug 13, 2025
    Route object
    AS2914 NTT America, Inc.
    ARIN route object for AS2914 NTT America, Inc., maintainer MNT-GAL-104
  8. Aug 13, 2025
    Route object
    AS3257 GTT Communications Inc.
    ARIN route object for AS3257 GTT Communications Inc., maintainer MNT-GAL-104
  9. Aug 16, 2025– today
    Announced
    AS2914 NTT America, Inc.
    Internet provider
  10. 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)421GTT 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, 2005abuse@gtt.net
└ 72.245.152.0/212,048ARISK-GTTArisk Communications inc. (AC-5396) · USReallocatedAug 13, 2025support@ariskisp.com
└ 72.245.152.0/212,048GTTunknownReassignedJan 12, 2026support@ariskisp.com
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
Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Rotating
First seen
Nov 2005
Current origin since
Aug 2025 · 1.2 yr
Origin networks
3
Last change of origin
Aug 2025
Recorded history

History

Handoffs
2