Area Code 77 – Haffouz/Kairouan/Kasserine

Overview of Tunisia Area Code 77

Area code 77 is a geographic National Destination Code (NDC) within the Tunisian national numbering plan, governed by the ITU-T E.164 standard. It serves the central-western region of Tunisia, primarily covering the governorates of Kairouan, Kasserine, and the town of Haffouz. This code is assigned to fixed-line PSTN services, providing local telephony connectivity for residential, commercial, and administrative users.

Geographic Coverage and Administrative Jurisdiction

The 77 code encompasses a significant administrative area that includes:

• Kairouan Governorate: The regional capital, Kairouan, is a UNESCO World Heritage site and a major cultural and religious center. The code covers the city itself and surrounding delegations such as Haffouz, El Alaa, and Hajeb El Ayoun.
• Kasserine Governorate: This includes the city of Kasserine and its surrounding areas, located further west near the Algerian border. Key towns like Sbeitla and Fériana are also within this code.
• Haffouz: A delegation in the Kairouan Governorate, known for its agricultural activities, is directly served by this prefix.

The administrative jurisdiction falls under the Instance Nationale des Télécommunications (INTT), Tunisia's regulatory authority, which oversees the allocation and management of numbering resources.

Dialing Formats and Caller Instructions

For callers within Tunisia, the national format requires dialing the trunk prefix 0 followed by the area code and the subscriber's 6-digit local number. For example, a local call to a fixed line in Kairouan would be dialed as 077 123 456.

For international callers, the format is: +216 77 123 456, where +216 is Tunisia's country calling code, followed by the area code (without the leading zero) and the local number. This format is essential for routing calls through international gateways.

It is important to note that Tunisia does not currently use overlay codes for this region; the 77 code is exclusively used for fixed-line services in the covered areas. Mobile numbers in Tunisia use distinct prefixes (e.g., 20-29, 50-59) and are not affected by this geographic code.

Caller Instructions

• Local callers (within Tunisia): Dial 077 followed by the 6-digit subscriber number.
• International callers: Dial your country's exit code, then 216, then 77, then the 6-digit subscriber number. For example, from the US/Canada, dial 011 216 77 123 456; from the UK, dial 00 216 77 123 456.

When dialing from a mobile phone, the same international format applies, but the plus sign (+) can be used instead of the exit code, e.g., +216 77 123 456.

This area code is integral to Tunisia's national telecommunication infrastructure, ensuring reliable connectivity for residents and businesses in the central-western region.