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Data as of Nov 3, 2026

199.176.76.0/22

256 anonymizer addresses · 25% · Datacenter proxy

AT&T Enterprises, LLC · space held by AT&T Services, Inc.

Announcement
199.176.64.0/18
No RPKI
Announced by
AS20057
Type
Mobile
75% of it
IPv4 market

Path

1 · Holder
AT&T Services, Inc.
record created Feb 17, 1994
2 · Leased from
not leased
3 · Announced by
AS20057 AT&T Enterprises, LLC
since Oct 2025 · 13 mo ago
4 · Use
Mobile
anonymizer space, operator not named

Announcements

More specific

Announcements inside

PrefixOriginTypeRPKI
199.176.76.0/24AS214760Datacenter proxy

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
199.176.0.0/14262,144AADSNET-CIDRAT&T Services, Inc. (ATTSE-Z) · USDirect AllocationFeb 17, 1994[email protected]
└ 199.176.76.0/221,024CINGULAR-76-79unknown———

Composition

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

Announced space

Address share

Announced space

Types across the prefix

1,024 addresses
TypeAddressesShareRanges
Mobile76875%1
Datacenter proxyanonymizer25625%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 199.176.64.0/18

Prefix
199.176.64.0/18
Announced by
AS20057 AT&T Enterprises, LLC
Type
Mobile
Anonymizer addresses
none
Proxy exits
9
Always-on exits
2
RPKI
No RPKI
Netname
AADSNET-CIDR
Registrant
AT&T Services, Inc.
RIR
ARIN
Origin network

AS20057

US
Name
AT&T Enterprises, LLC
Type
Internet provider
Registered
Mar 20, 2001
Domain
att.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed