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Data as of Nov 7, 2026

64.47.21.0/24

No anonymizer space · no proxy exits in 30 days

Masergy Communications, Inc.

Announcement
this exact prefix
No RPKI
Announced by
AS19855
Type
Internet provider
91% of it

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
64.47.0.0/16
since May 2005
AS19855Internet provider33
5 always on
Masergy 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
64.47.0.0/1665,536MASERGY-BLK1Masergy Communications, Inc. (MSRG) · USDirect AllocationMar 2, 2000abuse@masergy.com
└ 64.47.21.0/298MB244134unknown———
└ 64.47.21.8/312MB134057unknown———
└ 64.47.21.10/312MB166855-WANunknown———
└ 64.47.21.14/312MB111140unknown———
└ 64.47.21.16/298MB029227unknown———
└ 64.47.21.30/312MB103952unknown———
└ 64.47.21.32/298MB1025971-LANunknown———
└ 64.47.21.40/298MB1349187unknown———
└ 64.47.21.48/298CAREERBUILDERunknown———
└ 64.47.21.56/304MB050669unknown———
└ 64.47.21.60/312MB1343539unknown———
└ 64.47.21.64/298MB166855-LANunknown———
└ 64.47.21.76/304CABELAS-INCORPORATEDunknown———
└ 64.47.21.80/304CABELAS-INCORPORATEDunknown———
└ 64.47.21.84/312MB1854673unknown———
└ 64.47.21.86/321MC004477unknown———
└ 64.47.21.96/298MB111140unknown———
└ 64.47.21.104/298MB1280480unknown———
└ 64.47.21.128/298MB178324unknown———
└ 64.47.21.136/298MB197319unknown———
└ 64.47.21.144/298MB036138-WAN3unknown———
└ 64.47.21.152/298SCHWEITZERunknown———
└ 64.47.21.160/298MB1280513unknown———
└ 64.47.21.168/298MB191728unknown———
└ 64.47.21.176/2816MB191728unknown———
└ 64.47.21.192/2732MASERGY-64-47-21-192unknown———
└ 64.47.21.224/298MSRG-64-47-21-224-29unknown———
└ 64.47.21.232/304MB239471unknown———
└ 64.47.21.240/298MB009669unknown———
└ 64.47.21.248/298MB036138unknown———

Composition

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

Announced space

Address share

Announced space

Types across the prefix

256 addresses
TypeAddressesShareRanges
Internet provider23291%4
Business249.4%4

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