Category:Defunct telecommunications companies

• Telecommunications companies by century of disestablishment‎ (3 C)
• Telecommunications companies by year of disestablishment‎ (40 C)

A

• Defunct telecommunications companies of Australia‎ (11 P)

C

• Defunct telecommunications companies of Canada‎ (1 C, 13 P)

I

• Defunct Internet service providers‎ (21 P)

M

• Defunct mobile phone companies‎ (1 C, 12 P)

S

• Svyazinvest‎ (9 P)

U

• Defunct telecommunications companies of the United Kingdom‎ (1 C, 45 P)
• Defunct telecommunications companies of the United States‎ (3 C, 96 P)

V

• Defunct VoIP companies‎ (5 P)

A

• Anglo-Portuguese Telephone Company

B

• Bell Telephone Manufacturing Company

C

• Compagnie Générale d'Electricité

G

• Global Crossing

I

• Intelig Telecom
• International Bell Telephone Company

M

• Madritel
• Mix & Genest

S

• Svyazinvest