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10,000. from 0000 to 9999.

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How many combinations are there for the last four digits of a phone number if the number must be unique?

9999


What are US numbers called?

In the United States, phone numbers are typically referred to as "telephone numbers" or simply "numbers." They follow a specific format, consisting of a three-digit area code followed by a seven-digit local number. Additionally, Social Security numbers (SSNs) and other identification numbers, like driver's license numbers, are also commonly referred to as "numbers" in their respective contexts.


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.


How many digit is fax number?

a fax number is just the same as a phone number so the same number of numbers


How many digits are California phone numbers?

California phone numbers, like all standard U.S. phone numbers, consist of 10 digits. This includes a three-digit area code followed by a seven-digit local number. The area code is typically represented as the first three digits, and the local number is divided into a three-digit prefix and a four-digit line number.

Related Questions

What are 800 phone numbers used for?

Phone numbers that start with the numbers 800 are toll free numbers. Toll free phone numbers are numbers that have no cost to the person calling the 800 number.


How many digits are in the New Zealand mobile phone number have?

It can change with a higher demand for a mobile phone. The phone company has to keep coming up with more number combinations to allow more people to buy sim cards for phones . My first mobile number only had 8 numbers. But my new number has 11 :)


How do you get two phone numbers on the same phone?

You can't really get two phone numbers on the same phone. But, you can get an extension phone number plus your regular phone number. Ask your phone service about an extension number for your phone.


Is it possible to block every number in your phone after a certain time?

yes. assuming 15 digits per phone number, including area code and international, there would be 1000000000000000 combinations of the digits 0-9. This does not account for short numbers, like 911, but there are a finite number of these as well


How many combinations are there for the last four digits of a phone number if the number must be unique?

9999


What were the old phone numbers from the 40s like?

Phone numbers in the 1940s were typically shorter than modern phone numbers, often consisting of just a few digits. They were usually connected to a specific neighborhood or area, and were often shared among multiple households.


What is the phone number for this routing number?

if want to find any bank routing number with phone numbers then visit bank information websites


What is famous peoples phone numbers?

This is a famous phone number 232.12.67 Guess who!!


Phone number I need the phone number?

WA does not give out phone numbers nor email addresses


What is Carmella phone number?

We don’t give out phone numbers.


What is NBC universal's phone number?

They have a large number of corporate numbers. See the "related Links" for a complete list of specific phone numbers available.


How do I block numbers on this phone?

There are a number of ways to block phone number depending on what type of phone you have. Usually your manual will give the specific code to do so.