Call signs in North America are frequently still used by North American broadcast stations in addition to amateur radio and other international radio stations that continue to identify by call signs around the world. Each country has a different set of patterns for its own call signs.
Many countries have specific conventions for classifying call signs by transmitter characteristics and location. The call sign format for radio and television call signs follows a number of conventions. All call signs begin with a "prefix" assigned by the International Telecommunications Union. For example, the United States has been assigned the following prefixes: AAA–ALZ, K, N, W. For a complete list, see international call sign allocations.
Read more about Call Signs In North America: Bermuda, Bahamas, and The Caribbean, Canada, Mexico, United States, Other Regions
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—Noam Chomsky (b. 1928)
“[Christianity] endeavors equally to establish these two things: that God has set up in the Church visible signs to make himself known to those who should seek him sincerely, and that he has nevertheless so disguised them that he will only be perceived by those who seek him with all their heart.”
—Blaise Pascal (1623–1662)
“When the Somalians were merely another hungry third world people, we sent them guns. Now that they are falling down dead from starvation, we send them troops. Some may see in this a tidy metaphor for the entire relationship between north and south. But it would make a whole lot more sense nutritionally—as well as providing infinitely more vivid viewing—if the Somalians could be persuaded to eat the troops.”
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“... the Department of Justice is committed to asking one central question of everything we do: What is the right thing to do? Now that can produce debate, and I want it to be spirited debate. I want the lawyers of America to be able to call me and tell me: Janet, have you lost your mind?”
—Janet Wood Reno (b. 1938)