French telephone numbers consist of 10 digits, typically formatted with spaces separating pairs of digits. The numbering plan begins with a leading ‘0’, followed by one of five area codes indicating the geographical region or mobile service. These area codes are: 01 (Paris region), 02 (Northwest), 03 (Northeast), 04 (Southeast), 05 (Southwest), and 06/07 (mobile numbers). An example is 01 45 67 89 01, where ’01’ denotes the Paris region.
Understanding the structure of the French numbering system is crucial for both international callers and domestic businesses. Correctly dialing these numbers ensures efficient communication and prevents connection errors. Historically, France’s telephone numbering plan has evolved to accommodate increasing demand and technological advancements, including the rise of mobile communication and the integration of fixed and mobile networks.