An Example of Formatting Phone Numbers

In the following sections, we will work through a complete example on formatting telephone numbers. Formatting telephone numbers involves local conventions that vary from culture to culture. For example, the same US phone number can have all of the formats listed below:

(541) 754-3010Domestic
1-541-754-3010Dialed in the US
001-541-754-3010Dialed from Germany
191 541 754 3010Dialed from France

Now consider a German phone number. Although a German phone number consists of an area code and an extension like a US number, the format is different. Here is the same German phone number in a variety of formats:

(089) / 636-48018Domestic
19-49-89-636-48018Dialed from France

Note the difference in formatting domestic numbers. In the US, the convention is 1 (area code) extension, while in Germany it is (0 area code)/extension.