The telephone company set aside a certain exchange for writers so they could give out telephone numbers out in books, movies, tv, etc. without actually giving out a "real" number. Now these first three numbers (exchange) are often trade by a word (e.g Victor ect...) What is that word?

Hi mozart,
You mean like KLondike 5 or KLamath 5 for the "555" number?

Dancing girl , very good . "Klondike" was the word I was looking for Source (look for #116)