Area Code 273 – Tien Giang province

Geographic Overview

The area code 273 is the National Destination Code (NDC) assigned to the province of Tien Giang in the Socialist Republic of Vietnam. Tien Giang is located in the Mekong Delta region, with its capital and largest city being My Tho. The province is known for its extensive river networks, orchards, and its strategic position along the National Route 1A, connecting Ho Chi Minh City to the southern delta provinces. The 273 code covers all landline telephone services within the province's administrative boundaries, including the cities of My Tho, Go Cong, and Cai Lay, as well as the surrounding rural districts.

Dialing Formats

When calling a fixed-line number in Tien Giang from within Vietnam, subscribers must dial the trunk prefix 0, followed by the area code 273, and then the subscriber number, which typically consists of 7 digits. The complete national format is: 0 273 XXX XXXX. For example, a local call to a number in My Tho would be dialed as 0273 123 4567.

For international callers, the country code for Vietnam is +84. The leading 0 of the national trunk prefix is omitted. The international dialing format becomes: +84 273 XXX XXXX. Thus, the same number would be dialed as +84 273 123 4567 from abroad.

Caller Instructions

• Local callers within Tien Giang: Even for calls within the same province, the full national format (including the trunk prefix and area code) is required. This is due to the nationwide implementation of closed numbering plan in Vietnam, which mandates the use of the area code for all fixed-line calls.
• Callers from other provinces in Vietnam: Dial the trunk prefix 0, then the area code 273, followed by the subscriber number.
• International callers: Dial the international access code (e.g., 00 from most countries), then Vietnam's country code 84, then the area code 273 (without the leading zero), and finally the subscriber number.

Overlay and Numbering Considerations

As of the latest ITU-T E.164 national numbering plan updates, there is no overlay code for Tien Giang; the 273 code is exclusively assigned to this province. Subscriber numbers are 7 digits long, and the total length of a national significant number (NSN) is 10 digits (including the leading 0). The Ministry of Information and Communications of Vietnam has not announced any imminent changes to the 273 area code, ensuring stability for businesses and residents.

It is important to note that while mobile numbers in Vietnam also start with 0 and are 10 digits long, they use distinct prefixes (e.g., 090, 091, 098 for legacy networks, and 03x, 05x, 07x, 08x, 09x for current assignments). The 273 code is exclusively for fixed-line services, and calls to it are typically charged at local or domestic long-distance rates depending on the caller's location.