Data as of Nov 5, 2026

12.150.15.0/24

No anonymizer space · no proxy exits in 30 days

Cenlar FSB · space held by AT&T Enterprises, LLC

Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromProxy exitsHolderRPKI
12.128.0.0/9AS7018ResidentialIP broker Rackdog (part)5,205
282 always on
AT&T Enterprises, LLC
12.0.0.0/8AS7018Residential13,299
722 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
└ 12.150.8.0/212,048ATTSVCM-12-150-8-0AT&T Services, Inc. (ATTW) · USReallocatedDec 15, 2003—
└ 12.150.15.0/24256CENLAR616-15CENLAR (CENLA) · USReassignedMar 19, 2014krichardson@cenlar.com

Network & registry

IPv4 market

Holder

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
12.150.8.0/21
Reallocated
Dec 15, 2003
Origin network

AS15059

US
Name
Cenlar FSB
Type
Business
Registered
Aug 3, 2020
Industry
Banks, Credit Card Companies, Mortgage Providers
Spamhaus ASN-DROP
not listed