Area Code 077 – Mobile Network
The phone area code for Mobile Network is 077 (international format +33077). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 077
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Overview of French Mobile Prefix 077
The prefix 077 is a non-geographic mobile network code within the French national numbering plan, administered by the Autorité de Régulation des Communications Électroniques et des Postes (ARCEP) in accordance with ITU-T E.164 recommendations. Numbers beginning with 077 are part of the 07 range, which is exclusively reserved for mobile services in metropolitan France. Unlike geographic area codes (01 to 05), 077 numbers are not tied to any physical location, allowing subscribers to retain their number when moving across the country. The prefix is used by both traditional Mobile Network Operators (MNOs) such as Orange, SFR, Bouygues Telecom, and Free Mobile, as well as Mobile Virtual Network Operators (MVNOs) that lease network capacity from these MNOs.
Number Structure and Dialing Formats
French mobile numbers consist of ten digits in national format, always beginning with 0, followed by the mobile prefix (here 07) and an eight-digit subscriber number. For example, a typical 077 number appears as 07 71 23 45 67 in national format. When dialing from abroad, the leading zero is dropped, and the country code +33 is added, resulting in +33 7 71 23 45 67 (or +33771234567). Both formats are valid for international calls, but the international format is essential for calls originating outside France.
Call Routing and Interconnection
077 numbers are fully integrated into the French PSTN and are reachable from fixed-line, mobile, and VoIP services. Calls to 077 numbers are routed through the national mobile network, and termination rates are regulated by ARCEP to ensure fair competition among operators. Since the introduction of mobile number portability (MNP) in France, subscribers can switch operators while retaining their 077 number, which means that the prefix alone does not indicate the current network operator. To identify the actual operator, one must consult the ARCEP number portability database.
Regulatory and Usage Considerations
All 077 numbers are allocated for voice, SMS, and MMS services. They support international SMS and voice roaming, subject to the subscriber's roaming agreements. For businesses, 077 numbers are often used for customer contact because they are perceived as mobile numbers, but they are not classified as premium-rate or toll-free services. Callers are charged according to their own mobile or fixed-line tariff, and the called party may incur charges for receiving calls when roaming abroad. It is important to note that 077 numbers are not eligible for geographic number portability to fixed-line services, as they are strictly mobile.
Practical Dialing Examples
- National call (within France): dial 07 71 23 45 67.
- International call (from outside France): dial +33 7 71 23 45 67.
- When saving the number in a phone, always use the international format +33 7 71 23 45 67 to ensure proper dialing from abroad.