Telco a commonly used acronym?

[Torsten]

Hi, today I came across the acronym telco - I didn't know it was used for 'teleconference'. According to Acronymfinder.com it can mean 'Telephone Company', 'Tata Electric and Locomotives' and 'Telecommunication Network for Cooperative Driving'. So, how common is the use of the acronym telco? Also, there is this Germany mobile phone provider called Telco. (and my dictionary says that there is even a regional telecom company by the same name in the US). Seems they have chosen this name on purpose? Do you know any other companies that use an acronym as their name? Could there be any trademark issues here?

Regards
Torsten

TOEIC listening, question-response: Aren't you due for a raise?

[Mister Micawber]

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I found these:

Telco Powered Products™

Telco Solutions III is a diverse sales and manufacturing company located in Franklin, Tennessee

Telco Construction Equipment Company

Telco Intercontinental Corp

and a host of others incorporating the 'word'.
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Native English teacher at Mister Micawber's