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The first three numbers are called the area code. Originally, the area code was based on the population in the area and the ease of dialing it on a rotary phone. So a 212 or 312 was very populated, while 909 would be a rural area. They originally only had a 1 or a 0 in the middle to accommodate the switching system. Now they can be any three digits as computer systems can handle the differences.
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What is the first three numbers in Idaho's phone numbers?
403
How many phone numbers are possible with 0971?
Assuming you can use the values listed, and the phone number is 7 digits (e.g. XXX-XXXX), then you can select 3 numbers for the first digit (0 is exempt) then 4 selections for the rest of the digits. So, 3*4*4*4*4*4*4 = 12288 phone numbers.
Which data type is better to use for storing phone number in the following format 977-1-1234567?
Phone numbers should always be stored in a text format and never as in a number field. There are several of reasons for this. You never do calculations with phone numbers; you may have a zero at the start of a phone number, which would disappear if left in a number format and you may, as in this case, have other characters in a phone number that are not digits, which would not be accepted in a number format.
What it little ceacers number?
You may be unfamiliar with this esoteric invention called a "phone book" which gives the numbers for people and businesses in your area, but I suggest you look into it (and then look IN it).
How many digit is fax number?
a fax number is just the same as a phone number so the same number of numbers
