American Telephone and Telegraph Company

E14707

corporation former monopoly public company telecommunications company

American Telephone and Telegraph Company (AT&T) is a major American telecommunications corporation historically known for its nationwide telephone service monopoly and significant contributions to communications technology.

Aliases (4)

Statements (49)

Predicate	Object
instanceOf	corporation → former monopoly → public company → telecommunications company →
alsoKnownAs	AT&T → AT&T Corp. →
associatedWith	Bell Labs →
brand	AT&T →
contributedTo	development of UNIX operating system → development of information theory → development of transistor at Bell Labs →
country	United States →
developedAt	Bell Telephone Laboratories →
event	divestiture of Bell System in 1984 →
founded	1885 →
foundedBy	Alexander Graham Bell → Gardiner Greene Hubbard → Thomas Sanders →
hasCustomerBase	business telephone customers in the United States → residential telephone customers in the United States →
hasSubsidiary	Western Electric Company →
headquartersLocation	New York City →
historicalRole	backbone of U.S. long-distance network → dominant provider of telephone service in the United States →
industry	technology → telecommunications →
influenced	global telecommunications standards →
legalForm	corporation under New York law →
monitoredBy	Federal Communications Commission →
notableFor	contributions to communications technology → development of long-distance telephony → nationwide telephone service monopoly in the United States →
operated	Bell System local operating companies →
originalPurpose	build and operate long-distance telephone network in the United States →
parentOf	Bell System →
partOf	AT&T Inc. →
peakInfluencePeriod	20th century →
regulatedBy	U.S. federal government →
resultedIn	creation of Regional Bell Operating Companies →
serviceType	local telephone service → long-distance telephone service → telecommunications equipment →
subjectOf	1982 antitrust settlement with U.S. Department of Justice →
successor	AT&T Inc. →
tradedAs	NYSE:T →
usedTechnology	circuit-switched telephony → coaxial cable transmission → microwave relay networks → satellite communications →

Referenced by (20)

Subject (surface form when different)	Predicate
Frank B. Jewett → Harry Nyquist → Mervin J. Kelly ("AT&T") →	employer
Lucent Technologies ("AT&T Corporation") → Western Electric → Western Electric ("AT&T") →	parentCompany
Bell System → Bell Telephone Laboratories →	parentOrganization
Bell System ("AT&T Corp.") → Bell Telephone Company →	successor
Time Warner ("AT&T") →	acquiredBy
Bell System Technical Journal ("AT&T") →	associatedWith
AT&T →	formerName
Radio Corporation of America ("American Telephone & Telegraph") →	foundedBy
Southwestern Bell →	historicalConnection
NYSE:T →	issuerFoundedAs
A. T. & T. Building, Kansas City, Missouri →	namedAfter
AT&T Stadium ("AT&T") →	namingRightsPartner
AT&T Stadium ("AT&T") →	sponsor
Lucent Technologies ("AT&T Corporation") →	spunOffFrom