Area Code 4355 – Hnivan/Tyvriv, Vinnytsia

Overview of Area Code 4355

Area code 4355 is a geographic destination code within the Ukrainian national numbering plan, assigned to the Hnivan and Tyvriv districts of the Vinnytsia Oblast (province) in west-central Ukraine. This code is part of the country's closed numbering plan, which requires the use of the national trunk prefix 0 when dialing domestically and the country code +380 for international calls.

Geographic Coverage and Administrative Jurisdiction

The code serves the town of Hnivan (Гнівань) and the urban-type settlement of Tyvriv (Тиврів), along with surrounding villages within the Tyvriv Raion. Administratively, these areas fall under the Vinnytsia Oblast, with the regional capital Vinnytsia located approximately 25 kilometers northeast of Hnivan. The region is known for its granite quarries and agricultural production, and the local telephone network is operated by the national incumbent provider, Ukrtelecom, alongside alternative fixed-line operators.

Dialing Formats and Caller Instructions

For local callers within Ukraine (outside the local calling area), the domestic dialing format is:

• 0 4355 X XX XX (where X denotes the subscriber number digits)

For callers from abroad, the international format is:

• +380 4355 X XX XX

When calling from a mobile phone within Ukraine, the same domestic format applies, and the call is treated as a national long-distance call, subject to applicable tariffs. It is important to note that the leading 0 is not dialed when calling from outside Ukraine; instead, the country code +380 is used.

Local Dialing and Overlay Considerations

Within the local exchange area, callers may be able to dial the subscriber number directly without the area code, depending on the local network configuration. However, for clarity and to avoid misdialing, it is recommended to always use the full national number. As of the current numbering plan, there is no overlay code for 4355, meaning the area code is unique to this geographic region.

Numbering Plan Structure

Ukrainian subscriber numbers for fixed lines typically consist of five to seven digits after the area code. In the 4355 area, subscriber numbers are generally six digits long, resulting in a total national significant number (NSN) length of nine digits (excluding the trunk prefix). This conforms to the ITU-T E.164 recommendation, which allows a maximum of 15 digits for international numbers.

Practical Examples

To illustrate, a local subscriber number in Hnivan might be 3 12 45. To reach this number from Kyiv, a caller would dial 0 4355 3 12 45. From the United States, the caller would dial 011 380 4355 3 12 45. From a mobile phone in Ukraine, the same number would be dialed as 0 4355 3 12 45.

Understanding the correct dialing format is essential for both domestic and international callers to ensure successful connection to businesses and residents in the Hnivan and Tyvriv areas.