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Asked by: Elroy Bode
Updated: 10 August 2021 11:59:00 PM

How many possible phone numbers are there?

Therefore, the total number of possible phone numbers is 7,/b>.

With that being said, how many combinations of phone numbers can there be?

Express your answer in scientific notation. For the 3-digit area code, the first digit can be any digit from 2 through 9, and each of the two digits that follow can be any digit from 0 through 9. That's a total of 8 × 10 × 10 = 800 different combinations.

With that knowledge in mind, will we ever run out of phone numbers?

According to forecasts by the North American Numbering Plan Administrator - that's the official clearinghouse for area codes in the U.S., Canada and some Caribbean countries - D.C.'s (202) phone numbers could run out as early as the second quarter of 2023.

In addition, they are often interested in how many numbers exist in the world?

Originally Answered: How many numbers exist? From a sort of language perspective there are 10 numbers; 0,1,2,3,4,5,6,7,8 and 9. All measures of counting are made up of these numbers. If you are asking in regards to the limit of how many combinations of numbers exist then that would be infinite.
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