Area Code 4761 – Zambales

Overview of Area Code 4761

Area code 4761 is a geographic telephone prefix assigned to the province of Zambales in the Philippines. It is part of the national numbering plan administered by the National Telecommunications Commission (NTC) and follows the ITU-T E.164 standard. The prefix is used for fixed-line (PSTN) services within the province, covering both residential and business subscribers. Zambales is located in the Central Luzon region (Region III), and its major towns include Iba (the provincial capital), Olongapo City, Subic, and Botolan.

Geographic Coverage and Jurisdiction

The 4761 area code serves the entire province of Zambales, including the highly urbanized city of Olongapo and the Subic Bay Freeport Zone. Subscribers within this area are assigned numbers in the format +63 4761 XXX XXX (where X represents digits 0-9). The prefix is administered by local exchange carriers (LECs) and is not portable to other geographic areas; it is tied to the physical location of the line.

Dialing Formats and Instructions

• Local calls (within Zambales): Dial the 8-digit subscriber number directly, e.g., 4761 234 567.
• Domestic long-distance calls (from other Philippine provinces): Dial 0 (trunk prefix) followed by the area code and subscriber number: 0 4761 234 567.
• International calls (from outside the Philippines): Dial your country's international access code (e.g., 00 from many countries, or +), then the Philippines country code 63, then the area code (without the leading 0) and the subscriber number: +63 4761 234 567.

Overlay and Numbering Considerations

Currently, there is no overlay code for Zambales; the 4761 area code is the sole geographic code for the province. However, due to increasing demand, the NTC may introduce additional area codes or expand the number length in the future. Subscribers should always verify the correct dialing format with their service provider.

Caller Instructions

For callers within the Philippines, always include the trunk prefix '0' when dialing from outside the area code region. For international callers, omit the '0' and use the country code. It is important to note that calls to 4761 numbers are charged as domestic long-distance when made from other parts of the Philippines, and as international calls when made from abroad.