Area Code 4642 – Sedimentary, Chernihiv

Geographic Coverage and Administrative Jurisdiction

The Ukrainian national destination code +380 4642 is a geographic area code assigned to the Sedniv (Седнів) exchange area within the Chernihiv oblast (province) of northern Ukraine. Administratively, this numbering zone falls under the jurisdiction of the Chernihiv branch of Ukrtelecom, the incumbent fixed-line operator, and is part of the national numbering plan that follows ITU-T E.164 recommendations. The code serves the town of Sedniv and its surrounding rural settlements, which are located approximately 25 kilometers northeast of the regional capital, Chernihiv, along the Snov River. The area is historically significant but has a relatively small subscriber base, reflecting its rural character.

Dialing Formats and Caller Instructions

For local callers within Ukraine (including mobile users) dialing a Sedniv fixed-line number, the national trunk prefix 0 must be used, followed by the area code and the subscriber number. The complete national format is: 0 4642 XX-XX-XX (where X represents the 6-digit local subscriber number). For example, a local call to a Sedniv subscriber would be dialed as 0 4642 3-45-67.

International callers must replace the trunk prefix with the Ukrainian country code +380, omitting the leading zero. Thus, the international dialing format becomes: +380 4642 XX-XX-XX. For instance, a caller from abroad would dial +380 4642 3-45-67. It is important to note that the area code is an integral part of the national numbering plan; therefore, when dialing from outside Ukraine, the country code and area code are concatenated without any additional separators.

Overlay Considerations and Numbering Plan

As of the latest ITU-T operational bulletin, there are no overlay codes or permissive dialing arrangements in effect for the 4642 area. The subscriber number length is fixed at six digits, and the total length of a national significant number (NSN) is nine digits (including the leading '0' for national dialing). This structure aligns with the Ukrainian national numbering plan, which allocates geographic codes in the range of 2 to 5 digits, with the remaining digits forming the subscriber number. The code 4642 is a four-digit area code, which is typical for smaller administrative districts within the Chernihiv region.

Service Characteristics and Regulatory Notes

Geographic numbers in Ukraine, including those under 4642, are primarily used for fixed-line PSTN services. However, due to number portability regulations, a subscriber may have moved to a VoIP or other alternative service while retaining the same number. Callers should be aware that the geographic indication does not necessarily reflect the physical location of the called party's equipment, especially after porting. For emergency services, local callers should dial the national emergency numbers (101, 102, 103, 104) regardless of the area code. For billing purposes, calls to geographic numbers are typically charged at standard local or national rates depending on the caller's location and tariff plan, and international calls to +380 4642 are subject to international rates set by the caller's operator.