Area Code 6423 – North Cotabato

Overview of Area Code 6423

Area code 6423 is a geographic National Destination Code (NDC) assigned to the province of North Cotabato in the Philippines. It is part of the country's open dialing plan, where the trunk prefix '0' is used for domestic calls and the international access code '+63' replaces it for calls from abroad. The code covers the provincial capital, Kidapawan City, and the municipalities of M'lang, Matalam, Kabacan, Carmen, and other towns within the administrative jurisdiction of North Cotabato.

Dialing Formats

For local calls within the same area code, subscribers typically dial only the 7-digit local number. However, to call North Cotabato from other parts of the Philippines, you must dial the trunk prefix 0, followed by the area code and the subscriber number: 0 6423 XXX XXXX. From outside the Philippines, callers should use the international format: +63 6423 XXX XXXX. For example, a landline in Kidapawan City might be reached at +63 6423 456 7890.

Geographic Coverage and Administration

North Cotabato is located in the SOCCSKSARGEN region (Region XII) on the island of Mindanao. The area code 6423 is administered by the National Telecommunications Commission (NTC) and is assigned to the local exchange carrier, typically PLDT or other authorized providers. It is a geographic code, meaning that the number is tied to a physical location and is used for fixed-line (PSTN) services. As of the latest NTC guidelines, there are no overlay codes for this area, so the 6423 code is the sole identifier for the province's landline network.

Caller Instructions

For local callers within North Cotabato, simply dial the 7-digit number. For callers from other provinces, include the trunk prefix '0' and the area code. For international callers, always drop the leading '0' and use the country code +63. Ensure that you have the correct number of digits: the complete international format should be 12 digits after the plus sign (63 + 6423 + 7-digit subscriber number).

Important Notes

While area code 6423 is primarily for fixed-line services, some businesses may use it for fax or VoIP lines that are registered to physical addresses in the province. Mobile numbers in the Philippines are not assigned to geographic area codes; they use prefixes like 0917 or 0999. Therefore, when calling a North Cotabato landline, always use the 6423 code. For any changes in dialing procedures, consult your local telecom provider or the NTC.