No, absolutely not! This is a significant roaming trap for travelers heading to Tonga. As an independent kingdom, Tonga is not included in any standard Australian, New Zealand, or US domestic mobile plans. Your home carrier will charge you extremely high 'Rest of World' international roaming rates, which can quickly lead to a shocking bill. SouthESIM offers a far more affordable and transparent way to stay connected, allowing you to enjoy the beautiful islands of Tonga without financial surprises.
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Is roaming free in Tonga if I have an Australian, New Zealand, or US SIM card?
Updated April 22, 2026
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