Area Code 5631 – Petropavlovka, Dnipro

Overview of Area Code +380 5631

Area code +380 5631 is a geographic National Destination Code (NDC) assigned to the town of Petropavlovka and its surrounding rural areas within the Dnipropetrovsk Oblast (Dnipro region) of Ukraine. This code is part of the national numbering plan administered by the Ukrainian State Centre of Radio Frequencies (UCRF) under the framework of ITU-T E.164. The geographic coverage is centered on Petropavlovka, a settlement located approximately 100 kilometers southwest of the city of Dnipro, and includes adjacent villages and agricultural communities that rely on the local PSTN infrastructure.

Geographic Coverage and Administrative Jurisdiction

Petropavlovka serves as the administrative center of the Petropavlivka Raion (district) within Dnipropetrovsk Oblast. The area code 5631 is used for fixed-line telephony services provided by local operators, primarily Ukrtelecom, the incumbent national carrier. The region is characterized by a mix of residential, commercial, and agricultural activity. The numbering area is non-overlay, meaning that no other NDC shares the same geographic territory; therefore, local calls within the Petropavlovka area can be dialed using the subscriber number only (typically 5 to 7 digits) without the trunk prefix or area code.

Dialing Formats and Caller Instructions

For callers within Ukraine (domestic calls), the international format is not required. To call a Petropavlovka number from another city or region in Ukraine, dial the trunk prefix 0 followed by the area code 5631 and the subscriber number. For example, if the local subscriber number is 45678, the domestic dialing format would be: 0 5631 45678. For international callers, the country code for Ukraine is +380, so the same number would be dialed as +380 5631 45678. Note that the leading trunk prefix '0' is omitted when calling from abroad.

Number Length and Formatting

Ukrainian geographic numbers typically have a total length of 9 digits after the country code, including the NDC. In the case of +380 5631, the NDC is 4 digits (5631), leaving 5 digits for the subscriber number. Thus, the full international number format is +380 5631 XXXXX (where XXXXX is the 5-digit subscriber number). The national significant number (NSN) is 9 digits, which is consistent with the ITU-T E.164 recommendation for Ukraine.

Caller Instructions and Practical Notes

When dialing from a mobile phone within Ukraine, it is common to use the international format with the plus sign, even for domestic calls, as this ensures proper routing. For example, a mobile user in Kyiv would dial +380 5631 45678 to reach a fixed line in Petropavlovka. For callers outside Ukraine, the international access code of their country (e.g., 00 in most European countries, 011 in North America) must be used before the country code. It is also important to note that while fixed-line numbers are geographically tied to Petropavlovka, VoIP services may allow users to obtain numbers with this area code regardless of physical location, but such numbers are still considered geographic for regulatory purposes.