Area Code 4639 – Silver, Chernihiv

Geographic Overview

The +380 4639 numbering block is a geographic National Destination Code (NDC) assigned to the Silver administrative district of Chernihiv Oblast, Ukraine. This area falls within the Chernihiv region in northern Ukraine, bordering Belarus to the north. The code serves the town of Silver (Sribne) and its surrounding rural settlements, which are part of the Pryluky Raion after the 2020 administrative reform. The region is primarily agricultural, with local administrative and service industries relying on fixed-line PSTN connectivity.

Dialing Formats

For domestic callers within Ukraine, the number is dialed as 0 4639 X XX XX, where the leading '0' is the trunk prefix. After the national trunk prefix, the NDC '4639' is followed by a subscriber number of five to seven digits, depending on the local exchange capacity. For example, a typical local number might be 0 4639 2 45 67. When calling from abroad, the international format is +380 4639 X XX XX, omitting the trunk '0'. Thus, the same number would be dialed as +380 4639 2 45 67.

Geographic Coverage and Jurisdiction

The +380 4639 code is allocated to the Silver district, which includes the urban-type settlement of Sribne and nearby villages such as Dihtyari, Kulykivka, and Hrytsivka. Administratively, this territory now falls under the Pryluky Raion of Chernihiv Oblast. The code is used exclusively for fixed-line services, including traditional PSTN and some VoIP-based fixed lines that retain geographic numbering. It is not assigned to mobile operators, which use non-geographic codes starting with 50, 63, 66, 67, 68, 73, 91, 92, 93, 94, 95, 96, 97, 98, or 99.

Overlays and Numbering Changes

As of the latest ITU-T E.164 national numbering plan updates, there are no overlay codes for the 4639 area. The Ukrainian regulator, the National Commission for State Regulation of Communications and Informatization (NCCIR), has not introduced any changes that would affect the dialing format for this region. Subscriber numbers within this code are typically 5 to 7 digits long, but the total length of a national significant number (NSN) is always 9 digits, excluding the trunk prefix. Therefore, the subscriber number length varies to maintain the fixed NSN length.

Caller Instructions

For local callers within the Silver district, it is possible to dial only the subscriber number if the call is within the same local exchange, but for clarity and to avoid misrouting, it is recommended to always use the full national format. For callers from other regions of Ukraine, the correct dialing sequence is 0 4639 followed by the subscriber number. International callers must use the country code +380 and then the NDC without the leading zero. For example, to call a number in Silver from the United States, one would dial 011 380 4639 X XX XX. It is important to note that calls to geographic numbers are typically charged at local or national rates, depending on the caller's location and tariff plan.