Data as of Nov 8, 2026

66.244.67.0/24

No anonymizer space · no proxy exits in 30 days

Cornerstone Information Systems, Inc. · space held by Smithville Digital, LLC

Announcement
this exact prefix
RPKI valid
Announced by
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
66.244.64.0/18
since Feb 2017
AS11550Residential106
15 always on
Smithville Digital, 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
66.244.64.0/1816,384SDL-BLK-2Smithville Digital, LLC (SDL-20) · USDirect AllocationMar 12, 2002abuse@smithville.com
└ 66.244.67.0/24256SDL-CIS-1Cornerstone Information Systems Inc. (CIS-426) · USReassignedApr 28, 2014—

Network & registry

Registry

Holder

Organization
Smithville Digital, LLC
Handle
SDL-20
Range
66.244.64.0/18
Registration type
Direct Allocation
Record created
Mar 12, 2002
Origin network

AS62945

US
Name
Cornerstone Information Systems, Inc.
Type
Business
Registered
Dec 3, 2013
Domain
ciswired.com
Industry
Software Development
Spamhaus ASN-DROP
not listed