Oceania · DX entity · DXCC 185

Solomon Islands

Solomon Islands is a DX entity in Oceania, in CQ zone 28 and ITU zone 51. Its primary prefix is H4.

Flag of Solomon Islands.

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Figure 1. Solomon Islands and its provinces, 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 0.005522 degrees, about 615 m; exported 30 October 2026. Projection: Lambert azimuthal equal-area centred on 9.2° S 159.1° E.

Data sheet

DXCC entity code	185
Name in the ADIF standard	SOLOMON IS.
Continent	Oceania
Primary prefix	H4
CQ zone	28
ITU zone	51

Prefixes

H4 is the primary prefix. The country files list 1 prefix for Solomon Islands.

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.