Europe · DX entity · DXCC 504

Slovak Republic

Slovak Republic is a DX entity in Europe, in CQ zone 15 and ITU zone 28. Its primary prefix is OM.

Flag of Slovak Republic.

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Figure 1. Slovak Republic and its regions, with neighbouring land in grey. Hover for names; scroll to zoom. Boundaries: Natural Earth, Admin 0 Map Subunits and Admin 1 States and Provinces, 1:10m, version 5.1.2 (13 May 2022), public domain, retrieved 2026-10-15. https://www.naturalearthdata.com/. DX entity boundaries assembled by The DX Atlas Project from the sources named, one recipe row per DXCC entity (subunits matched, merged, split by box or carved from a parent; DXEntity-Recipe.md), 2026. Simplified for this page to 0.002474 degrees, about 275 m; exported 30 October 2026. Projection: Lambert azimuthal equal-area centred on 48.7° N 19.7° E.

Data sheet

DXCC entity code	504
Name in the ADIF standard	SLOVAK REPUBLIC
Continent	Europe
Primary prefix	OM
CQ zone	15
ITU zone	28

Prefixes

OM is the primary prefix. The country files list 1 prefix for Slovak Republic.

Show all prefixes

Sources: Jim Reisert AD1C, Big CTY country files, 15 September 2026. https://www.country-files.com/ (MIT licence); ADIF Development Group, ADIF Specification version 3.1.8 (2026-10-12), DXCC Entity Code enumeration. https://adif.org/; ARRL, DXCC List (current and deleted entities), January 2026. https://www.arrl.org/country-lists-prefixes; Flag: Flagpedia.net (flagcdn.com), SVG, public domain, retrieved 2026-10-10.