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Data as of Nov 3, 2026

72.157.4.0/23

No anonymizer space · no proxy exits in 30 days

AT&T Enterprises, LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS7018
Type
Residential
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
72.156.0.0/14
since Aug 2019
AS6389Residential1,050AT&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
72.156.0.0/14262,144BELLSNET-BLK16AT&T Enterprises, LLC (AEL-360) · USDirect AllocationAug 11, 2005[email protected]
└ 72.157.4.0/23512BLS-72-157-4-0-1001291007EARS Loopback 1 - SDF (C02412685) · USReassignedJan 29, 2010[email protected]
via BELLSNET-BLK16

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
IPv4 market

Holder

Holder in the market →
Organization
AT&T Enterprises, LLC
Handle
AEL-360
Range
72.156.0.0/14
Registration type
Direct Allocation
Record created
Aug 11, 2005
Origin network

AS7018

US
Name
AT&T Enterprises, LLC
Type
Internet provider
Registered
Jul 30, 1996
Domain
att.com
Website
www.att.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed