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Data as of Nov 7, 2026

64.138.133.0/24

No anonymizer space · no proxy exits in 30 days

Masergy Communications, Inc.

Announcement
this exact prefix
No RPKI
Announced by
AS19855
Type
Internet provider
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
64.138.128.0/18
since May 2005
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
└ 64.138.133.0/24256SNE-NSA-NA-CENTCB Masergy (C09073888) · USReassignedDec 11, 2022abuse@masergy.com
via MSGY-BLK2

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
Registry

Holder

Organization
Masergy Communications, Inc.
Handle
MSRG
Range
64.138.0.0 - 64.138.191.255
Registration type
Direct Allocation
Record created
Aug 3, 2000
Origin network

AS19855

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