Oceania · DX entity · DXCC 160

Tonga

Tonga is a DX entity in Oceania, in CQ zone 32 and ITU zone 62. Its primary prefix is A3.

Flag of Tonga.

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Figure 1. Tonga and its first-level subdivisions, 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 0.007136 degrees, about 794 m; exported 30 October 2026. Projection: Lambert azimuthal equal-area centred on 18.9° S 175.1° W.

Data sheet

DXCC entity code	160
Name in the ADIF standard	TONGA
Continent	Oceania
Primary prefix	A3
CQ zone	32
ITU zone	62

Prefixes

A3 is the primary prefix. The country files list 1 prefix for Tonga.

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.