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ISO 3166-2:TO

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ISO 3166-2:TO is the entry for Tonga in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

Currently for Tonga, ISO 3166-2 codes are defined for 5 divisions. Each code consists of two parts, separated by a hyphen. The first part is TO, the ISO 3166-1 alpha-2 code of Tonga. The second part is two digits (01–05).

Current codes[edit]

Subdivision names are listed as in the ISO 3166-2 standard published by the ISO 3166 Maintenance Agency (ISO 3166/MA).

Click on the button in the header to sort each column.

Code Subdivision name (to, en)
TO-01 'Eua
TO-02 Ha'apai
TO-03 Niuas
TO-04 Tongatapu
TO-05 Vava'u


The following changes to the entry have been announced in newsletters by the ISO 3166/MA since the first publication of ISO 3166-2 in 1998:

Newsletter Date issued Description of change in newsletter Code/Subdivision change
Newsletter I-8 2007-04-17 Addition of the administrative subdivisions and of their code elements Subdivisions added:
5 divisions

See also[edit]

External links[edit]