Discussion This regular expression matches three groups of digits. The first group can optionally be enclosed with parentheses, and the first two groups can optionally be followed with a choice of three separators a hyphen, dot, or space. The following layout breaks the regular expression into its individual parts, omitting the redundant groups of digits: Capture the enclosed match to backreference
How to Write a Phone Number in International Format By Ma Picard ; Updated September 29, When sharing your phone number with someone in another country, you must give them more information than just your local phone number.
You will need to know your country code as well as your area or city code and phone number. The number of digits in the local phone number will vary from country to country.
The format for writing them has been standardized. These codes range from 1 to 4 digits. Some countries share the same code. The country code for the United States is 1.
Locate your city code at nationsonline. Some small countries do not use city or area codes; large countries will have hundreds of different codes. There are more than area codes in use in the United States; France has five regional codes and 28 city codes in total.
Identify the local phone number. The number of digits will vary from country to country. In the United States, a local phone number is seven digits.
A local phone number in France is eight digits. Write the complete international phone number.
A United States phone number would be written: A phone number for Paris, France, would be written: Items you will need.Enter your mobile number or email address below and we'll send you a link to download the free Kindle App.
Then you can start reading Kindle books on your smartphone, tablet, or computer - . This article covers only North American phone number format and does not attempt to parse any other formats for any other phone systems.
Direct application of this custom format provider to other types of phone numbers could result in unpredictable results. An Example of Formatting Phone Numbers. The previous chapters explained how you can use locales and the standard facet classes, .
Sometimes people use a space to separate two parts of the local number, but I think that this introduces ambiguity. US Phone Numbers. Americans almost always write their phone number in the following form: () This assumes that the person telephoning knows that the number is in the US and that the country code for the US is 1.
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From my North America perspective, is there any guideline on using the plus "+" character as the first character in international phone number? I am considering standardizing this in my own database system to represent any number other than one following the North American Numbering Plan (NANP).