Area Code 651 – Dhamar

Overview of Area Code 651 (Dhamar, Yemen)

Area code 651 is a geographic National Destination Code (NDC) assigned to the Dhamar Governorate in the Republic of Yemen. It is part of the national numbering plan administered by the Telecommunications and Information Technology Center (TITC) under the Ministry of Telecommunications and Information Technology. The code is used for fixed-line (PSTN) services within the governorate, which is located in the central highlands of Yemen, approximately 100 kilometers south of the capital, Sana'a.

Geographic Coverage and Administrative Jurisdiction

The 651 code covers the entire Dhamar Governorate, including its capital city, Dhamar, and surrounding districts such as Maghirib Ans, Utmah, and Jabal Ash Sharq. The governorate is an important agricultural region and a key transit point between Sana'a and the southern governorates. The code is exclusively allocated to fixed-line services, not mobile networks, which use separate non-geographic prefixes (e.g., 7xx for mobile).

Dialing Formats and Instructions

To call a fixed-line number in Dhamar, the national significant number (NSN) is 9 digits long, consisting of the NDC (651) followed by a 6-digit subscriber number. The international format for Yemen is +967 651 XXXXXX.

• Domestic call (within Yemen): Dial 651 XXXXXX (no trunk prefix is used in Yemen's national dialing plan).
• International call (from outside Yemen): Dial your country's exit code (e.g., 00 or 011), then +967 651 XXXXXX.
• Local call (within Dhamar): In most cases, you can dial the 6-digit subscriber number directly, but for clarity and to avoid misdialing, it is recommended to dial the full NDC plus subscriber number.

Overlay and Numbering Considerations

As of the latest ITU-T E.164 national numbering plan, there is no overlay code for Dhamar; the 651 code is the sole geographic NDC for the governorate. However, due to the ongoing telecommunications infrastructure expansion, some fixed-line numbers may be migrated to VoIP or wireless local loop services, but they retain the 651 NDC for geographic identification. Callers should note that network congestion or routing issues may occur during peak hours, especially in rural areas.

Important Notes for Callers

When calling from abroad, ensure you have the correct country code (+967) and drop any leading '0' that might appear in local listings. For example, a local number listed as 651 123456 should be dialed as +967 651 123456 internationally. If you are using a VoIP service, verify that your provider supports calls to Yemen's geographic numbers, as some services may have restrictions. Always confirm the number with the recipient, as the Yemeni numbering plan has undergone changes in recent years.