Area Code 272 – Long An province

Overview of Area Code 272

Area code 272 is the National Destination Code (NDC) assigned to the Long An province in Vietnam. It is a geographic area code, meaning that the number is tied to a specific physical location and is used for fixed-line (PSTN) services within that province. The code is part of Vietnam's national numbering plan, which follows the ITU-T E.164 recommendation. When dialing internationally, the full number format is +84 272 XXX XXXX, where +84 is the country calling code for Vietnam.

Geographic Coverage and Administrative Jurisdiction

Long An is a province in the Mekong Delta region, located directly south of Ho Chi Minh City. Its capital is Tân An, and other major towns include Bến Lức, Cần Giuộc, Cần Đước, and Đức Hòa. The area code 272 covers all fixed-line subscribers within the provincial boundaries, including both urban and rural districts. The province is an important economic corridor, with significant industrial zones and agricultural activity.

Dialing Formats and Instructions

• Local (within Long An): When calling a fixed-line number within the same province, the area code is often omitted, and the subscriber number is dialed directly. For example, if the subscriber number is 3821 234, a local call would be dialed as 3821 234.
• National (from other provinces in Vietnam): Callers from other provinces must dial the trunk prefix 0 followed by the area code and subscriber number: 0 272 3821 234.
• International (from outside Vietnam): Callers must dial the international access prefix (e.g., 00 in most countries) followed by Vietnam's country code 84, then the area code without the leading zero, and the subscriber number: +84 272 3821 234.

Number Structure and Length

Subscriber numbers in Long An typically consist of 7 digits, making the total national significant number (NSN) length 10 digits when including the area code (0 272 XXX XXXX). The international format is 9 digits after the country code (84 272 XXX XXXX). This structure is consistent with Vietnam's fixed-line numbering plan.

Overlay and Numbering Considerations

As of the latest ITU-T and national updates, there is no overlay code for Long An; the 272 code is exclusively used for the province. However, with the growth of VoIP and IP-based services, some numbers may be routed over IP networks, but the geographic association remains for regulatory and emergency services purposes. Callers should always verify the correct area code when dialing from mobile phones, as mobile numbers in Vietnam do not use geographic area codes.

Practical Examples

• To call a fixed-line number in Tân An from Hanoi: dial 0 272 3821 234.
• To call the same number from the United States: dial 011 84 272 3821 234 (or use +84 272 3821 234 on mobile).
• To call from a Vietnamese mobile phone (e.g., from Ho Chi Minh City): dial 0 272 3821 234.

Understanding these dialing rules ensures seamless connectivity with businesses and residents in Long An, a key economic hub in southern Vietnam.