Area Code 226 – Ha Nam province

Overview of Area Code 226

Area code 226 is a geographic National Destination Code (NDC) assigned to the province of Ha Nam in the Socialist Republic of Vietnam. Under the ITU-T E.164 international numbering plan, the full country calling code for Vietnam is +84, so international callers must dial +84 226 followed by the local subscriber number. Domestically, callers within Vietnam dial 0226 (including the trunk prefix '0') before the local number, while callers from abroad omit the leading '0'.

Geographic Coverage and Administrative Jurisdiction

Ha Nam is a province in the Red River Delta region of northern Vietnam, bordered by Hanoi to the north and Hung Yen to the east. The province’s capital and largest city is Phu Ly, which serves as the primary administrative and economic hub. Area code 226 covers all landline telephone exchanges within Ha Nam, including districts such as Duy Tien, Kim Bang, Ly Nhan, and Thanh Liem. The code is exclusively used for fixed-line PSTN services; mobile numbers in Vietnam are assigned separate non-geographic prefixes (e.g., 03x, 05x, 07x, 08x, 09x) and are not tied to this area code.

Dialing Formats and Caller Instructions

For local callers within Ha Nam, the complete national format is 0226 XXX XXXX, where the subscriber number typically consists of 8 digits. When calling from another province in Vietnam, dial the same national format: 0226 XXX XXXX. International callers must replace the trunk prefix '0' with the country code, resulting in +84 226 XXX XXXX (or 0084 226 XXX XXXX when using the international prefix from many countries). For example, a landline in Phu Ly might be reached internationally by dialing +84 226 385 1234.

Overlays and Numbering Considerations

As of the latest ITU-T national numbering plan updates, area code 226 does not have an overlay code; it remains a standalone geographic code for Ha Nam. However, the Vietnamese telecommunications authority (Ministry of Information and Communications) has implemented a unified numbering plan since 2017, which standardized all fixed-line area codes to a 3-digit format (e.g., 226) and subscriber numbers to 8 digits. This change eliminated the previous 2-digit area codes and 7-digit local numbers, so all numbers under 226 now follow the 8-digit format. Callers should verify the current number length when dialing, as older 7-digit numbers have been migrated.

Practical Usage for Businesses and Residents

Businesses operating in Ha Nam often list their contact numbers in international format on websites and marketing materials to facilitate global communication. For foreign investors or partners, it is essential to use the correct country and area codes to avoid misdialing. Additionally, when calling from a mobile phone within Vietnam, the network will automatically route the call based on the national format, but using the international format (+84 226) is also accepted. For VoIP services, users can often store the number as +84 226 XXX XXXX for seamless routing.