Area Code 3850 – Old Sinyava, Khmelnytskyi

Geographic Context and Administrative Coverage

The +380 3850 prefix is a geographic National Destination Code (NDC) assigned to the fixed-line telephone network of the urban-type settlement of Stara Syniava (Old Sinyava) and its surrounding administrative district in Khmelnytskyi Oblast, Ukraine. This code is part of the national numbering plan administered by the Ukrainian State Centre of Radio Frequencies (UCRF) under the authority of the National Commission for State Regulation of Communications and Informatization (NCCIR). The area served by this prefix falls within the historical region of Podillia and is approximately 200 kilometers west of Kyiv.

Dialing Formats and Caller Instructions

For local callers within Ukraine, the prefix must be dialed with a leading zero: 0 3850, followed by the subscriber number. For example, a local call to a fixed line in Stara Syniava would be dialed as 0 3850 2 34 56. For international callers, the country code +380 is used, and the leading zero of the NDC is omitted: +380 3850 2 34 56. This format complies with ITU-T E.164 recommendations.

Numbering Structure and Subscriber Numbers

The subscriber number length under the 3850 prefix is typically 5 to 6 digits, resulting in a total national significant number length of 9 digits (including the NDC). The exact structure may vary depending on the local exchange capacity. All numbers under this prefix are geographically tied to the Stara Syniava area, meaning that the tariff for calls to these numbers is based on the geographic distance from the caller's location, as per traditional PSTN regulations.

Overlay and Regulatory Considerations

As of the latest NCCIR updates, no overlay code has been assigned to the Stara Syniava area; the 3850 prefix remains the sole geographic code for this locality. However, subscribers in this region may have the option to port their numbers to alternative fixed-line operators or VoIP providers, in which case the geographic significance of the prefix may not strictly correspond to the physical location of the end user. This is a result of number portability regulations implemented in Ukraine.

Practical Guidance for Callers

For businesses or individuals calling from abroad, it is essential to replace the trunk prefix '0' with the international access code of the originating country (e.g., 00 from most European countries, 011 from the United States) followed by 380 and the NDC without the leading zero. For example, a call from the US to Stara Syniava would be dialed as 011 380 3850 2 34 56. When dialing from a mobile phone, the plus sign (+) can be used instead of the international access code.