Area Code 078 – Mobile Network
The phone area code for Mobile Network is 078 (international format +33078). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 078
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Overview of French Mobile Prefix 078
The 078 prefix is a non-geographic mobile identifier within the French national numbering plan, administered by the Autorité de Régulation des Communications Électroniques et des Postes (ARCEP). It is part of the 07 range, which is exclusively reserved for mobile services in metropolitan France. Unlike geographic area codes (01–05), 078 numbers are not tied to a specific city or region, enabling subscribers to retain their number when moving across the country. The prefix is allocated to mobile network operators (MNOs) and mobile virtual network operators (MVNOs) that operate on their networks.
Number Format and Dialing Instructions
French mobile numbers consist of ten digits in national format, always beginning with 0, followed by the mobile prefix (e.g., 078) and a seven-digit subscriber number. The international format replaces the leading 0 with the country calling code +33, resulting in a number like +33 7 8 12 34 56 (note: the leading 0 is dropped). When dialing from within France, you must include the initial 0: 078 12 34 56. From abroad, dial the international access code (e.g., 00 from most European countries), then 33, followed by the remaining nine digits starting with 7 (e.g., 00 33 7 81 23 45 6).
Mobile Number Portability and Carrier Assignment
Since the introduction of mobile number portability (MNP) in France, the prefix 078 no longer indicates a specific carrier. Subscribers may have ported their number from one operator to another, meaning that the prefix alone cannot determine the current network. To identify the operator, one must consult a number portability database or contact the subscriber. This portability applies to both voice and SMS services, ensuring seamless communication across networks.
Usage and Regulations
Numbers with the 078 prefix are used for standard mobile voice calls, SMS, MMS, and mobile data services. They are also eligible for number-based services such as mobile payments and two-factor authentication. The French regulatory framework ensures that all mobile numbers, including 078, are accessible from any fixed or mobile line within France, and from abroad via international dialing. Emergency services can be reached by dialing 112, regardless of the number prefix.
For businesses, 078 numbers are often used for customer contact lines, as they are perceived as mobile numbers and may be included in mobile-friendly call plans. However, they are not toll-free; callers are charged according to their own mobile or fixed tariff, and the called party may incur charges for receiving calls when roaming abroad.
In summary, the 078 prefix is a versatile, non-geographic mobile identifier within the French numbering plan, offering flexibility and portability to subscribers across the country.