Area Code 5540 – Lower Sirogozy, Kherson

Geographic Overview

The +380 5540 prefix is a geographic National Destination Code (NDC) assigned to the fixed-line telephone network of Nyzhni Sirohozy (Lower Sirogozy), an urban-type settlement in the Henichesk Raion of Kherson Oblast, Ukraine. This code follows the ITU-T E.164 numbering plan and is used for traditional PSTN (Public Switched Telephone Network) services within the settlement and its immediate rural surroundings. The administrative jurisdiction covers the Nyzhni Sirohozy settlement hromada, which includes the central town and adjacent villages.

Dialing Formats

For callers within Ukraine, the national trunk prefix '0' is used before the area code, resulting in the format 0 5540 XXX XX (where X represents the subscriber number). Internationally, callers must use the country code +380, followed directly by the area code without the leading '0', yielding +380 5540 XXX XX. Subscriber numbers in this code are typically 5 to 7 digits long, depending on the local exchange capacity.

Geographic Coverage and Primary Settlements

• Nyzhni Sirohozy – the main administrative center and largest locality served by this code.
• Vysokopillia – a nearby village within the same hromada.
• Zelenyi Hai – a smaller rural settlement connected to the same local exchange.

The coverage area is predominantly rural, with agriculture as the primary economic activity. Telecommunication services are provided by Ukrtelecom and alternative fixed-line operators that interconnect via the national network.

Calling Instructions

Local callers (within Ukraine): Dial the full national number: 0 5540 XXX XX. For example, to reach a subscriber with number 12345, dial 0 5540 12345.

International callers: Dial your country's international access code (e.g., 00 from most European countries, 011 from North America), then Ukraine's country code 380, followed by the area code and subscriber number: +380 5540 12345.

Overlay and Numbering Considerations

As of the latest ITU-T allocations, there is no overlay code for this area. The 5540 code is exclusively assigned to the Nyzhni Sirohozy exchange. However, due to the ongoing modernization of Ukraine's telecom infrastructure, some subscribers may be migrated to VoIP or fiber-optic networks, but the geographic NDC remains unchanged for number portability and routing purposes.

Callers should note that while the area code is geographic, the actual physical location of the called party may differ if number portability has been exercised. Nevertheless, the tariff structure for calls to this code is based on the geographic destination, not the subscriber's actual location.