Africa · DX entity · DXCC 250

St Helena

St Helena is a DX entity in Africa, in CQ zone 36 and ITU zone 66. Its primary prefix is ZD7.

Flag of St Helena.

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Figure 1. St Helena and its first-level subdivisions. 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. At the full detail of the source; exported 30 October 2026. Projection: Lambert azimuthal equal-area centred on 16° S 5.7° W.

Data sheet

DXCC entity code	250
Name in the ADIF standard	ST. HELENA
Continent	Africa
Primary prefix	ZD7
CQ zone	36
ITU zone	66

Prefixes

ZD7 is the primary prefix. The country files list 1 prefix for St Helena.

Show all prefixes

ZD7

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.