Those 15 or 16 numbers embossed on the front of each of your credit cards aren’t randomly assigned. That sequence of digits has actual meaning and indicates everything from your account information to ...
Cell phones, fax machines and pagers are dialing through the country's supply of phone numbers. The Federal Communications Commission, aware of the dwindling supply of 10-digit phone numbers and ...
Every commercially published book in the world is given a unique International Standard Book Number, or ISBN. On its inception in 1967, that number was 10 digits long, though it was updated to 13 ...
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