Data as of Nov 10, 2026

87.87.136.0/21

Anonymizer · ISP proxy

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

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

Path

1 · Holder
record created Mar 2, 2026 · reallocated to Server Destroyers LLC Apr 27, 2026
2 · Leased from
its owner, directly
3 · Announced by
AS5650 Frontier Communications of America, Inc.
since Apr 2026 · 7 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

Owners leasing their own space

NameIn 87.87.136.0/21/24s
GTT Americas, LLC
2,048100%
8

Lineage

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

87.87.136.0/21

From the registry to its use

  1. Jan 7, 2026– today
    Announced
    AS3257 GTT Communications Inc.
    as part of 87.87.0.0/16
    87.87.0.0/16
  2. Mar 2, 2026
    Registry record
    GTT Americas, LLC
    Direct Allocation
    87.87.0.0/16
  3. Apr 25, 2026– today
    Announced
    AS5650 Frontier Communications of America, Inc.
    Internet provider
  4. Apr 27, 2026
    Reallocated
    Server Destroyers LLC
    Reallocated
    87.87.136.0/21
  5. Apr 27, 2026
    Route object
    AS5650 Frontier Communications of America, Inc.
    ARIN route object for AS5650 Frontier Communications of America, Inc., maintainer MNT-GAL-104

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
87.87.0.0/16
since Jan 2026
AS3257Internet provider1GTT Americas, LLC
87.84.0.0/14
since Oct 2022
AS3257Internet provider92
12 always on

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
87.87.0.0/1665,536GAL-104GTT Americas, LLC (GAL-104) · USDirect AllocationMar 2, 2026abuse@gtt.net
└ 87.87.136.0/212,048SDCLIENT-GTTServer Destroyers LLC (SDL-157) · USReallocatedApr 27, 2026serverdestroyers@gmail.com

Network & registry

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Stable
First seen
Apr 2026
Current origin since
Apr 2026 · 7 mo
Origin networks
1