Companies implementing Public Switched Telephone Network (PSTN)

The PSTN is the worldwide circuit‑switched telephone network run by national, regional, or local carriers, delivering public voice communication services.

2,094

companies

List of companies that implement Public Switched Telephone Network (PSTN)

CompanyCountryIndustryEmployeesRevenueTechnologies
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United Kingdom

IT Services and IT Consulting

190k

Public Switched Telephone Network (PSTN)

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United States

Telecommunications

61k

$80B

Public Switched Telephone Network (PSTN)

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India

IT Services and IT Consulting

251k

Public Switched Telephone Network (PSTN)

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United States

IT Services and IT Consulting

315k

$6.3B

Public Switched Telephone Network (PSTN)

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United States

IT Services and IT Consulting

220

$20M

Public Switched Telephone Network (PSTN)

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United States

IT Services and IT Consulting

27k

Public Switched Telephone Network (PSTN)

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Philippines

Outsourcing and Offshoring Consulting

4.3k

$239M

Public Switched Telephone Network (PSTN)

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Hong Kong

Software Development

6.2k

Public Switched Telephone Network (PSTN)

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United States

Hospitals and Health Care

50k

Public Switched Telephone Network (PSTN)

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United States

Financial Services

204k

Public Switched Telephone Network (PSTN)

Showing top companies out of 2,094 that implement Public Switched Telephone Network (PSTN). Get the full list on TheirStack.

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