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Data as of Nov 12, 2026

74.0.58.0/23

Anonymizer · ISP proxy

GTT Communications Inc. · space held by GTT Americas, LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS3257
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin Aug 2026
its first announcement on record
IPv4 market

Path

Announced by AS3257 since Aug 2026 · 12 wk ago
1 · Holder
GTT Americas, LLC
record created Dec 20, 2005 · reallocated to Internet Utilities NA LLC Oct 10, 2025
2 · Leased from
IPXO
3 · Announced by
AS3257 GTT Communications Inc.
since Aug 2026 · 12 wk ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 74.0.58.0/23/24s
IPXO
512100%
2

Lineage

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

74.0.58.0/23

From the registry to its use

  1. Dec 20, 2005
    Registry record
    GTT Americas, LLC
    Direct Allocation
    74.0.0.0 - 74.3.127.255
  2. Jan 8, 2006– May 15, 2022
    Announced
    AS18566 GTT Americas, LLC
    as part of 74.0.0.0/15
    74.0.0.0/15
  3. Apr 29, 2023– Nov 11, 2026
    Announced
    AS3257 GTT Communications Inc.
    as part of 74.0.0.0/15
    74.0.0.0/15
  4. Oct 10, 2025
    Reallocated
    Internet Utilities NA LLC
    Reallocated
    74.0.0.0/18
  5. Feb 20, 2026
    Route object
    AS834 IPXO LLC
    ARIN route object for AS834 IPXO LLC, maintainer MNT-GAL-104
    74.0.58.0/24
  6. Feb 20, 2026
    Route object
    AS834 IPXO LLC
    ARIN route object for AS834 IPXO LLC, maintainer MNT-GAL-104
    74.0.59.0/24
  7. Jul 31, 2026
    Route object
    AS3257 GTT Communications Inc.
    ARIN route object for AS3257 GTT Communications Inc., maintainer MNT-GAL-104
  8. Aug 23, 2026– Nov 11, 2026
    Announced
    AS3257 GTT Communications Inc.
    Internet provider
  9. Sep 25, 2026
    Route object
    AS6079 RCN
    ARIN route object for AS6079 RCN, maintainer MNT-GAL-104
  10. today
    Leased from
    IPXO
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromProxy exitsHolderRPKI
74.0.0.0/15
since Apr 2023
AS3257Internet providerIP broker IPXO (part)185
53 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
74.0.0.0 - 74.3.127.255229,376MEGAPATH-BLK-64-65-66GTT Americas, LLC (GAL-104) · USDirect AllocationDec 20, 2005abuse@gtt.net
└ 74.0.0.0/1816,384IPXO-LLCIPXO LLC (IL-845) · USReallocatedOct 6, 2025abuse@ipxo.com
└ 74.0.0.0/1816,384NETUTILSInternet Utilities NA LLC (DCL-577) · USReallocatedOct 10, 2025report@abuseradar.com
└ 74.0.58.0/24256NET-74-0-58-0-24IPNetZone (IPNET-1) · USReallocatedMar 25, 2026ipabuse@unsi.net
└ 74.0.58.0/24256RCN-GTTRCN (RTSL-6) · USReallocatedSep 25, 2026abuse@rcn.com
└ 74.0.59.0/24256NET-74-0-59-0-24IPNetZone (IPNET-1) · USReallocatedMar 25, 2026ipabuse@unsi.net
└ 74.0.59.0/24256RCN-GTTRCN (RTSL-6) · USReallocatedSep 25, 2026abuse@rcn.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
Aug 2026
Current origin since
Aug 2026 · 3 mo
Origin networks
1