Area Code 210 – Phu Tho province

Overview of Area Code 210 (Vietnam)

Area code 210 is the National Destination Code (NDC) assigned to the landline telephone network of Phu Tho province in northern Vietnam. This geographic code is part of the national numbering plan administered by the Vietnam Telecommunications Authority (VNTA) under the Ministry of Information and Communications. It replaced the older 2-digit code (e.g., 0210) during the 2017 national renumbering plan, which standardized all provincial codes to a 3-digit format for use after the trunk prefix '0'.

Geographic Coverage and Administrative Jurisdiction

Phu Tho province is located in the Northeast region of Vietnam, approximately 90 kilometers northwest of Hanoi. The province is known for its historical significance, particularly the Hung Kings' Temple complex in Viet Tri city. The area code 210 serves all districts and cities within Phu Tho, including:

• Viet Tri City – the provincial capital and largest urban center.
• Phu Tho Town – a major administrative and commercial hub.
• Districts such as Cam Khe, Doan Hung, Ha Hoa, Lam Thao, Phu Ninh, Tam Nong, Tan Son, Thanh Ba, Thanh Son, Thanh Thuy, and Yen Lap.

All fixed-line subscribers within these areas share the same area code, regardless of distance or local exchange.

Dialing Formats

To call a fixed-line number in Phu Tho, the subscriber number typically consists of 7 digits after the area code, making the complete national significant number (NSN) 10 digits (excluding the trunk prefix). The correct dialing formats are:

• Domestic (within Vietnam): Dial 0-210-XXX-XXXX (trunk prefix '0' + area code + subscriber number).
• International (from abroad): Dial +84-210-XXX-XXXX (Vietnam country code +84, area code without the leading '0', and subscriber number).

For example, a typical landline number in Viet Tri might be +84 210 385 1234. When calling from a mobile phone within Vietnam, the same domestic format applies.

Overlays and Numbering Considerations

Currently, there is no overlay code for Phu Tho; the 210 code is exclusively used for fixed-line services. However, due to the increasing demand for telecommunication services, the VNTA may introduce additional digit changes or overlays in the future. Subscribers should always verify the current dialing instructions with their service provider if they experience connectivity issues.

Caller Instructions

For local callers within Phu Tho: Even for calls within the same province, the full national format (0-210-XXX-XXXX) is required, as local 7-digit dialing is not permitted. For international callers: Ensure you replace the trunk prefix '0' with the international access code of your country (e.g., 00, 011) and then dial Vietnam's country code 84, followed by 210 and the subscriber number. Do not include the leading '0' of the domestic trunk prefix.