Africa · DX entity · DXCC 111

Heard Island

Heard Island is a DX entity in Africa, in CQ zone 39 and ITU zone 68. Its primary prefix is VK0H.

Flag of Heard Island.

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Figure 1. Heard Island 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 53.1° S 73.5° E.

Data sheet

DXCC entity code	111
Name in the ADIF standard	HEARD I.
Continent	Africa
Primary prefix	VK0H
CQ zone	39
ITU zone	68

Prefixes

VK0H is the primary prefix. The country files list 1 prefix for Heard Island.

Show all prefixes

VK0H

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.