Answer: telco

AnswerCrossword Clue
TELCOVerizon, e.g.
TELCOThe Bell System was one, briefly
TELCOMany a bidder in an FCC auction
TELCOVerizon, for example, for short
TELCOBig-time phone company
TELCOCommunications business, shortly
TELCOPhone service util.
TELCOVerizon or Sprint, briefly
telcoa telecommunications company
telcoa telecommunications company