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AT&T (Bell System)
URI:
https://gptkb.org/entity/AT&T_(Bell_System)
GPTKB entity
Statements (92)
Predicate
Object
gptkbp:instanceOf
gptkb:telecommunications_company
gptkbp:alsoKnownAs
gptkb:Bell_System
gptkb:American_Telephone_and_Telegraph_Company
gptkbp:dissolved
1984
antitrust breakup
gptkbp:founded
1877
gptkbp:founder
gptkb:Alexander_Graham_Bell
gptkbp:headquartersLocation
gptkb:New_York_City
https://www.w3.org/2000/01/rdf-schema#label
AT&T (Bell System)
gptkbp:industry
telecommunications
gptkbp:logo
Bell logo
gptkbp:notableAchievement
invention of the transistor
development of information theory
development of UNIX operating system
gptkbp:notableBuilding
gptkb:AT&T_Building_(New_York_City)
gptkb:AT&T_Long_Lines_Building
gptkbp:notableEmployee
gptkb:Claude_Shannon
gptkb:John_Bardeen
gptkb:Walter_Brattain
gptkb:William_Shockley
gptkbp:notableEvent
gptkb:Bell_System_Divestiture_(1984)
gptkb:Kingsbury_Commitment_(1913)
gptkbp:notableInvention
gptkb:C_programming_language
gptkb:laser
gptkb:smartphone
gptkb:UNIX
solar cell
transistor
gptkbp:notableProduct
gptkb:smartphone
long-distance telephone service
gptkbp:numberOfEmployees
over 1 million (at peak)
gptkbp:parentCompany
gptkb:American_Bell_Telephone_Company
gptkbp:regulates
gptkb:Federal_Communications_Commission
gptkbp:servesArea
gptkb:Canada
gptkb:Caribbean
gptkb:United_States
gptkbp:status
legal monopoly (in US telephone service)
gptkbp:subsidiary
gptkb:AT&T_Technologies
gptkb:BellSouth
gptkb:NYNEX
gptkb:Teletype_Corporation
gptkb:US_West
gptkb:Northwestern_Bell
gptkb:Qwest
gptkb:Mountain_Bell
gptkb:Bell_Labs
gptkb:Bell_Telephone_Laboratories
gptkb:Lucent_Technologies
gptkb:Sandia_National_Laboratories
gptkb:Western_Electric
gptkb:AT&T_Broadband
gptkb:New_England_Telephone
gptkb:New_York_Telephone
gptkb:South_Central_Bell
gptkb:Southern_Bell
gptkb:Southern_New_England_Telephone
gptkb:Bell_Atlantic
gptkb:Bell_Operating_Companies
gptkb:Southwestern_Bell
gptkb:AT&T_Wireless
gptkb:AT&T_Consumer_Products
gptkb:AT&T_Data_Systems
gptkb:AT&T_International
gptkb:AT&T_Microelectronics
gptkb:AT&T_Paradyne
gptkb:AT&T_Skynet_Satellite_Corporation
gptkb:Bell_Telephone_Company_of_Pennsylvania
gptkb:Chesapeake_and_Potomac_Telephone_Company
gptkb:Indiana_Bell
gptkb:Michigan_Bell
gptkb:Ohio_Bell
gptkb:Pacific_Telephone_&_Telegraph
gptkb:Wisconsin_Bell
gptkb:AT&T_Communications
gptkb:Bell_Canada
gptkb:Southwestern_Bell_Corporation
gptkb:AT&T_Long_Lines
gptkb:Illinois_Bell
gptkb:AT&T_Information_Systems
gptkb:Long_Lines_Division
gptkb:Mountain_States_Telephone_and_Telegraph_Company
gptkb:AT&T_Labs
gptkb:AT&T_Network_Systems
gptkb:Ameritech
gptkb:Cincinnati_Bell
gptkb:Pacific_Telesis
gptkb:Western_Electric_Company
gptkb:New_Jersey_Bell
gptkbp:successor
gptkb:AT&T_Inc.
gptkb:Regional_Bell_Operating_Companies
gptkbp:bfsParent
gptkb:Bell_Atlantic
gptkbp:bfsLayer
6