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The first three digits in a phone number represent the area code, which directs the phone call to a specific region according to population density. Lower numbers were typically used for denser areas (because they could be dialed faster on rotary phones), while higher numbers were used for less populated areas.

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The first three digits of a Social Security number represents the Area Number, or part of the country where the application for your Social Security card was originally filed. Prior to 1972, the Area Number represented the State where the application was completed; after 1972, the Areas have been assigned by zip code.

The Social Security Administration issued the lowest numbers to the Eastern states, and the higher numbers to the Western states. This scheme was initiated to help the SSA's Baltimore office keep track of their filing system in the days before computerization.

in a 10 digit phone number the first 3 digits is the area code.

Q: What are the first 3 digits mean in a phone number?

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it means... first born

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I guess that you talking about the phone number prefix. its ussually the first 3 digits of the phone number for exampls: If you have a phone number in NJ the first 3 digits would be (609) If you live in a different country, theres always a 3 number digit you would dial in the beginning of a phone number Hope that will help...

The second three digits in a phone number refer to an exchange. An exchange includes several thousand people or phones.

7 = digits in a telephone number (not counting the area code)

The # that shows on cell phone is only 4 digits 6842

you just carry the first number and add 5 to the second number

The term "suffix phone" typically refers to a type of phone number that includes an extension or additional digits at the end to route the call to a specific person or department within a company. Callers are usually prompted to enter the extension number after dialing the main phone number.

There are 3 significant digits; the number can be expressed as 9.09 times ten to the minus third power.

Add the digits together. The sum of the digits of 23 is 5.

The number is 13 digits in length. The first 2 digits = the month of birth; the next 3 digits are randomly assigned; the next 4 digits = the year of birth; the next 2 digits = "41" (it was the 41st state); and the last 2 digits = day of birth.

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3.14159265358979323864062384626238832795028841971693939937510582097494459230781640628620898628034825342117067 These are the hundred digits of pi

Any number that has 4 or 5 digits. A digit in a number is one number place. 1 has 1 digit, 11 has 2 digits, 111 has 3 digits, and so on.