Area Code 4573 – Kagarlyk/Rzhyshchiv, Kyiv

Overview of Area Code +380 4573

Area code 4573 is a geographic National Destination Code (NDC) within the Ukrainian telephone numbering plan, assigned to the Kagarlyk and Rzhyshchiv districts of Kyiv Oblast (region). This code is part of the country's E.164 numbering structure, where the full international number format is +380 4573 XXX XX. The code serves fixed-line PSTN subscribers and is administered by the Ukrainian State Enterprise of Communications (Ukrtelecom) under the National Commission for State Regulation of Communications and Informatization.

Geographic Coverage and Administrative Jurisdiction

The 4573 area code covers the administrative districts of Kagarlyk and Rzhyshchiv, located in the central part of Kyiv Oblast, approximately 80–100 km south of the capital city of Kyiv. These districts include the towns of Kagarlyk and Rzhyshchiv, as well as numerous rural settlements and villages. The code is geographically fixed, meaning that the physical location of the subscriber's line determines the assigned NDC.

Dialing Formats and Caller Instructions

For callers within Ukraine, the local dialing format requires the trunk prefix 0 followed by the area code and subscriber number: 0 4573 XXX XX. For international callers, the format is +380 4573 XXX XX (or 00380 4573 XXX XX from countries using international prefix 00). When dialing locally within the same area code, subscribers may use the seven-digit local number (XXX XX) without the trunk prefix or area code, depending on the operator's local dialing rules.

Overlay and Numbering Considerations

Currently, there is no overlay code for the 4573 area; the numbering capacity is sufficient for the subscriber density of the region. However, as part of the national numbering plan, the code is not portable to other geographic areas. Subscribers who move to a different district or city must be assigned a new number with the appropriate area code. This is a standard practice for geographic numbering in Ukraine.

Practical Examples

• Local call within Kagarlyk: Dial 5 12 34 (if calling from the same exchange).
• National call from Kyiv (landline): Dial 0 4573 5 12 34.
• International call from abroad: Dial +380 4573 5 12 34.

For businesses or individuals frequently contacting subscribers in Kagarlyk or Rzhyshchiv, it is essential to use the correct international format to avoid call routing errors. As with all Ukrainian geographic codes, the cost of calls is determined by the caller's operator and the distance, though modern pricing often treats national calls uniformly.