Area Code 4579 – Slavutych, Kyiv

Overview of Area Code +380 4579

Area code 4579 is a geographic National Destination Code (NDC) within the Ukrainian numbering plan, assigned to the city of Slavutych in the Kyiv Oblast (Kyiv region). This code is used for fixed-line (PSTN) services in Slavutych and its immediate administrative surroundings. The full international dialing format for a subscriber number in this area is +380 4579 XXX XX, where +380 is the country calling code for Ukraine, 4579 is the NDC, and the remaining digits constitute the local subscriber number.

Geographic Coverage and Administration

Slavutych is a modern city located in the northern part of Kyiv Oblast, near the border with Belarus. It was established in 1986 to house workers of the Chernobyl Nuclear Power Plant after the disaster. Administratively, Slavutych is a city of oblast significance, and its telephone services are integrated into the Kyiv regional telecommunications network. The area code 4579 covers the city proper and a few adjacent settlements that rely on the same local exchange.

Dialing Formats and Instructions

For callers within Ukraine (domestic calls), the trunk prefix 0 is used before the area code. Thus, to call a Slavutych number from another Ukrainian city, you would dial: 0 4579 XXX XX. For example, if the local number is 123 45, the domestic format would be 0 4579 123 45.

For international callers, the Ukrainian country code +380 is used, followed by the area code without the leading zero. The international format is: +380 4579 XXX XX. For instance, calling from abroad to the same number would require dialing +380 4579 123 45.

When dialing locally within Slavutych, it is often possible to omit the area code and dial only the subscriber number, depending on the local exchange configuration. However, for clarity and to avoid errors, it is recommended to always use the full national or international format.

Overlays and Numbering Changes

As of the latest ITU-T and Ukrainian NAP (National Allocation Plan) updates, there are no overlay codes for the 4579 area. The numbering capacity is sufficient for the population of Slavutych, which is approximately 25,000. No major changes are anticipated in the near term, but subscribers should always verify the current dialing procedures with their service provider.

Services and Usage

Area code 4579 is used exclusively for fixed-line telephone services, including analog and digital PSTN lines, as well as VoIP services that are assigned geographic numbers. It is not used for mobile services; mobile numbers in Ukraine begin with specific mobile prefixes (e.g., 50, 63, 66, 67, 68, 73, 91, 92, 93, 94, 95, 96, 97, 98, 99). Businesses and residents in Slavutych use this code for their landlines, and it is also used for fax and alarm systems.

For callers from abroad, it is important to note that Ukraine uses the international dialing prefix 00 for outgoing calls, but when receiving calls from abroad, the caller must use their own international prefix (e.g., 011 from North America) followed by 380 and the area code.