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Data as of Nov 8, 2026

12.206.227.0/24

No anonymizer space · no proxy exits in 30 days

AT&T Enterprises, LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS2386
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Jul 2026
from AS2386 AT&T Enterprises, LLC

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromProxy exitsHolderRPKI
12.128.0.0/9AS7018ResidentialIP broker Rackdog (part)5,263
290 always on
AT&T Enterprises, LLC
12.0.0.0/8AS7018Residential13,346
727 always on
AT&T Enterprises, 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
12.0.0.0/816,777,216ATTAT&T Enterprises, LLC (AEL-360) · USDirect AllocationAug 23, 1983abuse@att.net
└ 12.206.0.0/1665,536ATTWORLD28AT&T Services, Inc. (ATTW) · USReallocatedAug 13, 2010—
└ 12.206.227.0/24256ATTSI-IN53-227Attsi, Information Technology OP (ATTSI-16) · USReassignedJul 25, 2013—

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
AT&T Enterprises, LLC
Handle
AEL-360
Range
12.0.0.0/8
Registration type
Direct Allocation
Record created
Aug 23, 1983
Legacy
yes
Reallocated to
AT&T Services, Inc. (ATTW)
Reallocated range
12.206.0.0/16
Reallocated
Aug 13, 2010
Origin network

AS2386

US
Name
AT&T Enterprises, LLC
Type
Internet provider
Registered
Feb 3, 1993
Domain
att.com
Website
qsun.att.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed