Telephone company

telecommunications companytelephone companiestelcotelcostelecommunications companiestelecommunications operatorcarrierstelecommunication companiesphone companiesphone company
A telephone company, also known as a telco, telephone service provider, or telecommunications operator, is a kind of communications service provider (CSP), more precisely a telecommunications service provider (TSP), that provides telecommunications services such as telephony and data communications access.wikipedia
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Common carrier

carriercommon carrierscommon-carrier
Telephone companies are common carriers, and in the United States are also called local exchange carriers.
Public airlines, railroads, bus lines, taxicab companies, phone companies, internet service providers, cruise ships, motor carriers (i.e., canal operating companies, trucking companies), and other freight companies generally operate as common carriers.

Bell Telephone Company

Bell TelephoneAmerican Bell Telephone CompanyAmerican Bell
In 1913, a telephone trust ended and more than 20,000 independent telephone companies were able to use the trunk lines of Bell Telephone Company.
The American Bell Telephone Company evolved into the American Telephone & Telegraph Company (AT&T), at times the world's largest telephone company.

Monopoly

monopoliesmonopolisticmonopolist
Many telephone companies were at one time government agencies or privately owned but state-regulated monopolies.
It is the largest cable company and home Internet service provider in the United States, and the nation's third largest home telephone service provider.

Telecommunications service provider

telecomtelecommunicationstelecommunications provider
A telephone company, also known as a telco, telephone service provider, or telecommunications operator, is a kind of communications service provider (CSP), more precisely a telecommunications service provider (TSP), that provides telecommunications services such as telephony and data communications access.

Zak McKracken and the Alien Mindbenders

Zak McKrackenZak McCracken
The plot follows Zak (full name Francis Zachary McKracken), a writer for the National Inquisitor, a tabloid newspaper (the name is a thinly veiled allusion to the National Enquirer); Annie Larris, a freelance scientist; along with Melissa China and Leslie Bennett, two Yale University coed students, in their attempt to prevent the nefarious alien Caponians (who have taken over "The Phone Company", an amalgamation of various telecommunication companies around the world) from slowly reducing the intelligence of everybody on Earth by emitting a 60 Hz "hum" from their "Mind Bending Machine".

Mobile network operator

wireless carriernetwork operatorMNO
With the advent of mobile telephony, telephone companies now include wireless carriers, or mobile network operators.

Public switched telephone network

PSTNpublic telephone networktelephone network
The task of building the networks and selling services to customers fell to the network operators.

List of telephone operating companies

List of telephone operating companies § Japantelecom companiesBrazilian telecommunications

Communications service provider

communication service providerscommunications service providerscommunications services
A telephone company, also known as a telco, telephone service provider, or telecommunications operator, is a kind of communications service provider (CSP), more precisely a telecommunications service provider (TSP), that provides telecommunications services such as telephony and data communications access.

Telecommunication

telecommunicationscommunicationstelecom
A telephone company, also known as a telco, telephone service provider, or telecommunications operator, is a kind of communications service provider (CSP), more precisely a telecommunications service provider (TSP), that provides telecommunications services such as telephony and data communications access.

Telephony

digital telephonytelephonedigital
A telephone company, also known as a telco, telephone service provider, or telecommunications operator, is a kind of communications service provider (CSP), more precisely a telecommunications service provider (TSP), that provides telecommunications services such as telephony and data communications access.

Data transmission

data transferdigital communicationsdigital communication
A telephone company, also known as a telco, telephone service provider, or telecommunications operator, is a kind of communications service provider (CSP), more precisely a telecommunications service provider (TSP), that provides telecommunications services such as telephony and data communications access.

Postal, telegraph and telephone service

PTTPostal Telephone and TelegraphPTTs
The government agencies are often referred to, primarily in Europe, as PTTs (postal, telegraph and telephone services).

United States

AmericanU.S.USA
Telephone companies are common carriers, and in the United States are also called local exchange carriers.

Local exchange carrier

Local Exchange NetworkLEClocal
Telephone companies are common carriers, and in the United States are also called local exchange carriers.

Mobile telephony

mobile communicationmobile telecommunicationsmobile communications
With the advent of mobile telephony, telephone companies now include wireless carriers, or mobile network operators.

Internet service provider

ISPInternet service providersISPs
Most telephone companies now also function as internet service providers and the distinction between a telephone company and an ISP may disappear completely over time, as the current trend for supplier convergence in the industry continues.

Supplier convergence

Most telephone companies now also function as internet service providers and the distinction between a telephone company and an ISP may disappear completely over time, as the current trend for supplier convergence in the industry continues.