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Data as of Nov 12, 2026

72.244.172.0/22

Anonymizer · ISP proxy

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

Announcement
this exact prefix
RPKI valid
Announced by
AS5650
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
GTT Americas, LLC
record created Mar 22, 2005 · reallocated to Internet Utilities NA LLC Jul 30, 2025
2 · Leased from
IPXO
for its owner GTT Americas, LLC
3 · Announced by
AS5650 Frontier Communications of America, Inc.
since Sep 2025 · 14 mo ago
4 · Use
Proxy providersnamed FlashProxy
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 72.244.172.0/22/24s
FlashProxy
1,024100%
4
Leased from

IP brokers

NameIn 72.244.172.0/22/24s
IPXO
1,024100%
4
Leased from

Owners leasing their own space

NameIn 72.244.172.0/22/24s
GTT Americas, LLC
1,024100%
4

Lineage

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

72.244.172.0/22

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– today
    Announced
    AS3257 GTT Communications Inc.
    as part of 72.244.0.0/15
    72.244.0.0/15
  4. Jul 30, 2025
    Reallocated
    Internet Utilities NA LLC
    Reallocated
    72.244.0.0/16
  5. Sep 9, 2025– today
    Announced
    AS5650 Frontier Communications of America, Inc.
    Internet provider
  6. Sep 10, 2025
    Route object
    IPXO
    ARIN route object for AS5650 Frontier Communications of America, Inc., maintainer MNT-DCL-577
  7. Sep 11, 2025
    Route object
    IPXO
    RADB route object for AS5650 Frontier Communications of America, Inc., maintainer MAINT-AS834
  8. Apr 8, 2026
    Route object
    IPXO
    ARIN route object for AS7029 Windstream Communications LLC, maintainer MNT-DCL-577
  9. Apr 9, 2026
    Route object
    IPXO
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS834
  10. Apr 24, 2026
    Route object
    IPXO
    RADB route object for AS6079 RCN, maintainer MAINT-AS834
  11. Apr 24, 2026
    Route object
    IPXO
    ARIN route object for AS6079 RCN, maintainer MNT-DCL-577
  12. Apr 30, 2026
    Route object
    IPXO
    RADB route object for AS399955 B-Rock Crude, maintainer MAINT-AS834
  13. Apr 30, 2026
    Route object
    IPXO
    ARIN route object for AS399955 B-Rock Crude, maintainer MNT-DCL-577
  14. today
    Leased from
    IPXO
    IP broker
  15. today
    Used
    FlashProxy
    Proxy seller

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
└ 72.244.0.0/1665,536IPXO-GTTIPXO LLC (IL-845) · USReallocatedJul 18, 2025abuse@ipxo.com
└ 72.244.0.0/1665,536NETUTILSInternet Utilities NA LLC (DCL-577) · USReallocatedJul 30, 2025report@abuseradar.com

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Stable
First seen
Sep 2025
Current origin since
Sep 2025 · 1.2 yr
Origin networks
1