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Data as of Nov 7, 2026

64.138.128.0/18

No anonymizer space · no proxy exits in 30 days

Masergy Communications, Inc.

Announcement
this exact prefix
No RPKI
Announced by
AS19855
Type
Internet provider
98% of it

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

PrefixOriginTypeHolderRPKI
64.138.128.0/22
since Jan 2018
AS19855Internet providerMasergy Communications, Inc.
64.138.133.0/24
since Nov 2023
AS19855Internet providerMasergy Communications, Inc.
64.138.134.0/24
since Aug 2023
AS19855Internet providerMasergy Communications, Inc.
64.138.137.0/24
since Nov 2023
AS19855Internet providerMasergy Communications, Inc.
64.138.140.0/22
since Jan 2018
AS19855Internet providerMasergy Communications, Inc.
64.138.143.0/24
since Sep 2016
AS22775BusinessMasergy Communications, Inc.
64.138.144.0/22
since Dec 2017
AS19855Internet providerMasergy Communications, Inc.
64.138.149.0/24
since Nov 2023
AS19855Internet providerMasergy Communications, Inc.
64.138.150.0/24
since Nov 2023
AS19855Internet providerMasergy Communications, Inc.
64.138.153.0/24
since Nov 2023
AS19855Internet providerMasergy Communications, Inc.
64.138.156.0/22
since Mar 2024
AS19855Internet providerMasergy Communications, Inc.

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
64.138.0.0 - 64.138.191.25549,152MSGY-BLK2Masergy Communications, Inc. (MSRG) · USDirect AllocationAug 3, 2000abuse@masergy.com
└ 64.138.128.8/298MB175446unknown———
└ 64.138.128.26/312MB1540772unknown———
└ 64.138.128.32/304MB976370unknown———
└ 64.138.128.36/312MB1282373-IIM-EXTunknown———
└ 64.138.128.40/298MB872685unknown———
└ 64.138.128.48/2816MB430062-WANunknown———
└ 64.138.128.64/298MB960384unknown———
└ 64.138.128.96/2816MB810936unknown———
└ 64.138.129.0/2816MB126976unknown———
└ 64.138.129.16/298MB139764unknown———
└ 64.138.129.32/298MB147082unknown———
└ 64.138.129.94/312MB127380unknown———
└ 64.138.129.112/298VALERUS-COMPRESSION-SERVICEunknown———
└ 64.138.129.192/2664HETCOunknown———
└ 64.138.132.0/24256SNE-NSA-NA-WESTunknown———
└ 64.138.133.0/24256SNE-NSA-NA-CENTCB Masergy (C09073888) · USReassignedDec 11, 2022abuse@masergy.com
via MSGY-BLK2
└ 64.138.134.0/24256SNE-NSA-NA-EASTCB Masergy (C09073889) · USReassignedDec 11, 2022abuse@masergy.com
via MSGY-BLK2
└ 64.138.135.0/24256SNE-NSA-EMEAunknown———
└ 64.138.136.0/24256SNE-NSA-NA-APACunknown———
└ 64.138.137.0/24256SNE-NSA-LATAMCB Masergy (C09073892) · BRReassignedDec 11, 2022abuse@masergy.com
via MSGY-BLK2
└ 64.138.140.32/298MB872655unknown———
└ 64.138.140.40/298MB960394unknown———
└ 64.138.140.48/312MB1277922unknown———
└ 64.138.140.52/304MB1304423unknown———
└ 64.138.140.56/298MB1277922-UCunknown———
└ 64.138.140.64/304MB1282279unknown———
└ 64.138.141.28/312MB821474unknown———
└ 64.138.141.30/312MB1449346unknown———
└ 64.138.141.32/312MB1418770unknown———
└ 64.138.141.34/312MB1362909unknown———
└ 64.138.141.36/312MB1426261unknown———
└ 64.138.141.38/312MB1595434unknown———
└ 64.138.144.0/298MB657530unknown———
└ 64.138.144.18/312MB337910unknown———
└ 64.138.144.20/312MB899207unknown———
└ 64.138.144.22/312MB1540689unknown———
└ 64.138.144.24/312MB1419092-WANunknown———
└ 64.138.144.26/312MB1549061unknown———
└ 64.138.144.28/312MB1540569unknown———
└ 64.138.144.32/298MB176625unknown———
└ 64.138.144.40/312MB1285918---FOR-MC003559-CSL-BEHRING-LLCunknown———
└ 64.138.144.42/312MB1342453---FOR-MC003559-CSL-BEHRING-LLCunknown———
└ 64.138.144.48/2816MB337910unknown———
└ 64.138.144.76/312MB844401unknown———
└ 64.138.144.80/304MB828838unknown———
└ 64.138.144.84/304MB828848unknown———
└ 64.138.144.88/312MB828838-NATunknown———
└ 64.138.144.90/312MB859445unknown———
└ 64.138.144.92/304MB990556unknown———
└ 64.138.144.96/304MB990566unknown———
└ 64.138.144.100/312MB990556-NATunknown———
└ 64.138.144.102/312MB939947---IIMunknown———
└ 64.138.144.104/312MB1046397unknown———
└ 64.138.144.106/312MB1216738unknown———
└ 64.138.144.118/312MB1540605unknown———
└ 64.138.144.120/312MB1540659unknown———
└ 64.138.144.122/312MB1540895unknown———
└ 64.138.144.124/312MB1534286unknown———
└ 64.138.144.126/312MB1322712unknown———
└ 64.138.144.128/312MB1568748unknown———
└ 64.138.144.130/312MB1526603unknown———
└ 64.138.144.132/312MB1588475unknown———
└ 64.138.144.134/312MB2511618unknown———
└ 64.138.156.0/298MB1619195unknown———

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

16,384 addresses
TypeAddressesShareRanges
Internet provider16,05698%19
Business3282.0%3

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS19855

US
Name
Masergy Communications, Inc.
Type
Internet provider
Registered
Feb 21, 2001
Domain
masergy.com
Spamhaus ASN-DROP
not listed