LAYER3 INTEL
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Data as of Nov 8, 2026

66.20.0.0/15

No anonymizer space

AT&T Enterprises, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS6389
Type
Residential
98% of it

Residential-proxy exits

Proxy exits
5
<0.01% of its addresses · listed by providers
Always-on exits
1
20% of its exits
Spread
5 of 512
/24s with at least one exit
Providers
17
selling exits here

/24s with the most always-on exits

/24Always-on exitsProxy exits
66.21.18.0/2411
66.20.19.0/2401
66.20.24.0/2401
66.21.19.0/2401
66.21.26.0/2401

Proxy providers listing exits

  • AnyIP
  • BlurPath
  • CliProxy
  • ColaProxy
  • EnigmaProxy
  • FastProxy
  • FloppyData
  • Geonode
  • InfiniteProxies
  • LudaxProxy
  • MoMoProxy
  • NovProxy
  • NovaProxy
  • PuraRoute
  • RainProxy
  • SPYDERPROXY_PREMIUM
  • Thordata

Announcements

More specific

Announcements inside

PrefixOriginTypeHolderRPKI
66.20.45.0/24
since May 2005
AS23199BusinessAT&T Enterprises, LLC
66.20.212.0/24
since Nov 2014
AS29902BusinessAT&T Enterprises, LLC
66.20.213.0/24
since Nov 2014
AS29902BusinessAT&T Enterprises, LLC
66.20.244.0/24
since Feb 2017
AS2386Internet providerAT&T Enterprises, LLC
66.20.248.0/24
since Jul 2015
AS63238ResidentialAT&T Enterprises, LLC
66.21.42.0/24
since Feb 2011
AS32467BusinessAT&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
66.20.0.0/15131,072BELLSNET-BLK8AT&T Enterprises, LLC (AEL-360) · USDirect AllocationSep 14, 2000abuse@att.net
└ 66.20.18.0/298DUVAL-LA14-18-0unknown———
└ 66.20.18.32/298ACC-ACCE44-18-32unknown———
└ 66.20.18.56/298GEORGIA-84-18-56unknown———
└ 66.20.18.72/298CHANFRAU72-18-72unknown———
└ 66.20.18.88/298VITAL-RE13-18-88unknown———
└ 66.20.18.96/298NEW-HORI62-18-96unknown———
└ 66.20.18.112/298IBERIA-F93-18-112unknown———
└ 66.20.18.120/298ACC-THOM81-18-120unknown———
└ 66.20.18.128/298BEELINEC14-18-128unknown———
└ 66.20.18.136/298NETWOLVE84-18-136unknown———
└ 66.20.18.144/298SYNOVUSC25-18-144unknown———
└ 66.20.18.152/298GYPSUM-M34-18-152unknown———
└ 66.20.18.160/298KERRY-IN41-18-160unknown———
└ 66.20.18.168/298A00498PU22-18-168unknown———
└ 66.20.18.176/298INVISION63-18-176unknown———
└ 66.20.18.184/298VITAL-RE24-18-184unknown———
└ 66.20.18.192/298HDG-CENT41-18-192unknown———
└ 66.20.18.200/298ULTA-INC84-18-200unknown———
└ 66.20.18.208/298GFL-ENVI53-18-208unknown———
└ 66.20.18.216/298CORPORAT53-18-216unknown———
└ 66.20.18.224/298SAGENET-61-18-224unknown———
└ 66.20.18.232/298CCA-OF-T13-18-232unknown———
└ 66.20.18.240/2816IRON-NOU43-18-240unknown———
└ 66.20.19.0/298ACC-RBHV51-19-0unknown———
└ 66.20.19.8/298ISLAND-D96-19-8unknown———
└ 66.20.19.16/298ISLAND-D91-19-16unknown———
└ 66.20.19.24/298ISLAND-D91-19-24unknown———
└ 66.20.19.32/298ISLAND-D93-19-32unknown———
└ 66.20.19.40/298TODD-M-H12-19-40unknown———
└ 66.20.19.48/298SOUTHERN34-19-48unknown———
└ 66.20.19.56/298LOCKHEED34-19-56unknown———
└ 66.20.19.72/298NETWOLVE15-19-72unknown———
└ 66.20.19.80/298BROWN--B31-19-80unknown———
└ 66.20.19.88/298TOYOTA-O63-19-88unknown———
└ 66.20.19.96/298ECHOLS-C11-19-96unknown———
└ 66.20.19.104/298WELLESLE85-19-104unknown———
└ 66.20.19.120/298KUSTURA-35-19-120unknown———
└ 66.20.19.128/298NAUTIQUE51-19-128unknown———
└ 66.20.19.136/298COMCAST-52-19-136unknown———
└ 66.20.19.144/298ACC-FLOR81-19-144unknown———
└ 66.20.19.152/298SYNOVUSC83-19-152unknown———
└ 66.20.19.160/298RYERSON-53-19-160unknown———
└ 66.20.19.184/298VONAGE-B64-19-184unknown———
└ 66.20.19.224/298MARRIOTT12-19-224unknown———
└ 66.20.19.240/298EXPEREO-54-19-240unknown———
└ 66.20.19.248/298CENTENE-53-19-248unknown———
└ 66.20.212.0/23512NET-66-20-212-0-1Complete Computers (COMPLE-10) · USReassignedJan 5, 2023—
└ 66.21.18.0/298ROCKTENN61-18-0unknown———
└ 66.21.18.8/298BCM-ONE-64-18-8unknown———
└ 66.21.18.16/298BCM-ONE-64-18-16unknown———
└ 66.21.18.24/298DEPARTME55-18-24unknown———
└ 66.21.18.32/298HOGAN-LA91-18-32unknown———
└ 66.21.18.40/298NTEGRATE95-18-40unknown———
└ 66.21.18.48/298FUSION-L23-18-48unknown———
└ 66.21.18.56/298BBU-INC630-18-56unknown———
└ 66.21.18.64/298ARROW-EX75-18-64unknown———
└ 66.21.18.80/298OLD-TOWN94-18-80unknown———
└ 66.21.18.88/298ORANGE-C95-18-88unknown———
└ 66.21.18.96/298AMERICAN16-18-96unknown———
└ 66.21.18.104/304NEW-HORI51-18-104unknown———
└ 66.21.18.112/298LOWES-CO55-18-112unknown———
└ 66.21.18.120/298ALTAWORX83-18-120unknown———
└ 66.21.18.128/298A7-ELEVE14-18-128unknown———
└ 66.21.18.136/298ULTIMATE95-18-136unknown———
└ 66.21.18.144/2816MARRIOTT51-18-144unknown———
└ 66.21.18.160/298CLEMENS-82-18-160unknown———
└ 66.21.18.168/298ORANGE-B62-18-168unknown———
└ 66.21.18.176/298ADVANCED13-18-176unknown———
└ 66.21.18.184/298ORANGE-B34-18-184unknown———
└ 66.21.18.192/298NEW-HORI88-18-192unknown———
└ 66.21.18.200/298ACC-ADVA29-18-200unknown———
└ 66.21.18.208/298LOWES-CO25-18-208unknown———
└ 66.21.18.216/298IPFONE-S73-18-216unknown———
└ 66.21.18.224/298ACC-VERI84-18-224unknown———
└ 66.21.18.232/298ACC-PHOT87-18-232unknown———
└ 66.21.18.240/298SPECTROT84-18-240unknown———
└ 66.21.18.248/298ACC-DANA65-18-248unknown———
└ 66.21.19.0/298L-AND-S-63-19-0unknown———
└ 66.21.19.8/298ACC-SELE75-19-8unknown———
└ 66.21.19.16/298PGA-TOUR83-19-16unknown———
└ 66.21.19.24/298METTEL-P71-19-24unknown———
└ 66.21.19.32/298CORPORAT55-19-32unknown———
└ 66.21.19.40/298SPRINGHI17-19-40unknown———
└ 66.21.19.56/298COMMANDL53-19-56unknown———
└ 66.21.19.64/298KOHL-S-O62-19-64unknown———
└ 66.21.19.72/298FLETCHER53-19-72unknown———
└ 66.21.19.88/298CARDINAL54-19-88unknown———
└ 66.21.19.96/298COUNTRYW31-19-96unknown———
└ 66.21.19.104/298MAGNOLIA85-19-104unknown———
└ 66.21.19.112/298ONE-CHOI43-19-112unknown———
└ 66.21.19.120/298ACC-MCCO93-19-120unknown———
└ 66.21.19.128/298COMCAST-31-19-128unknown———
└ 66.21.19.144/298GREENTEC33-19-144unknown———
└ 66.21.19.168/298COMMANDL63-19-168unknown———
└ 66.21.19.184/298ALACHUA-61-19-184unknown———
└ 66.21.19.192/298SOUTHWAS35-19-192unknown———
└ 66.21.19.200/298TK422-DE34-19-200unknown———
└ 66.21.19.208/298SEAWORLD44-19-208unknown———
└ 66.21.19.232/298J-P-PERR51-19-232unknown———
└ 66.21.19.240/298DREXEL-C12-19-240unknown———
└ 66.21.19.248/298ADVANCED54-19-248unknown———
└ 66.21.42.0/24256ATT-NET--66-21-42-0-24Saks & Company LLC (C11527401) · USReassignedFeb 26, 2026abuse@att.net
via BELLSNET-BLK8

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Composition

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

Announced space

Address share

Announced space

Types across the prefix

131,072 addresses
TypeAddressesShareRanges
Residential128,98098%27
Business1,8361.4%104
Internet provider2560.20%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS6389

US
Name
AT&T Enterprises, LLC
Type
Internet provider
Registered
Mar 28, 1996
Domain
att.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed