Area Code 4342 – Kozatin, Vinnytsia

Geographic Overview

The +380 4342 area code is a geographic destination code assigned to the fixed-line telephone network of Koziatyn (also spelled Kozatin), a city in the Vinnytsia Oblast of central Ukraine. Koziatyn serves as a significant railway junction and administrative center, with its numbering plan falling under the national regulatory authority of the Ukrainian State Centre of Radio Frequencies and the National Commission for State Regulation of Communications and Informatization. The code covers the city itself and the surrounding rural settlements within the Koziatyn Raion, providing PSTN services to residential, business, and government subscribers.

Dialing Formats

When calling a Koziatyn landline from abroad, the international format requires the +380 country code, followed by the 4342 area code and the subscriber's 5-digit local number. For example, a full international dialing sequence would be +380 4342 12345. From within Ukraine, callers must use the national trunk prefix 0 before the area code, resulting in 0 4342 12345. Local calls within the same exchange may be possible using only the 5-digit subscriber number, but this depends on the specific carrier's dialing plan.

Geographic Allocation and Numbering

As a geographic code, 4342 is tied to the physical location of the fixed-line infrastructure. The subscriber numbers are typically 5 digits long, making the total national significant number (NSN) length 9 digits (including the leading 0). This structure adheres to ITU-T E.164 recommendations. The code is not portable to other geographic regions; if a subscriber moves outside the Koziatyn area, they must obtain a new local number. However, number portability within the same geographic area is possible between fixed-line operators, subject to national regulations.

Caller Instructions

For international callers, always replace the trunk prefix 0 with the +380 country code. For example, to call a Koziatyn number from the United States, you would dial 011 380 4342 12345 (or use the + symbol on mobile phones). For callers within Ukraine, simply dial 0 4342 12345. Be aware that some VoIP or mobile services may require the international format even for domestic calls, so it is advisable to use the +380 format for maximum compatibility.

Overlays and Future Considerations

Currently, there is no overlay code for the Koziatyn area; the 4342 code remains the sole geographic code for the region. However, as Ukraine continues to modernize its telecommunications infrastructure, there may be future changes to numbering plans, including potential migration to all-IP networks. Subscribers and callers should stay informed about any regulatory updates that could affect dialing procedures.