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