No. This is the second-biggest trap. Although Gibraltar is a British Overseas Territory, it is NOT part of the UK. Most UK carriers (especially post-Brexit) have excluded it from their free-roaming zones and will charge you an expensive "Day Pass" (£2-£6) or pay-per-MB rate. A Cellesim eSIM is significantly cheaper.
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Is roaming free in Gibraltar with my UK (O2, EE, Vodafone) SIM card?
Updated April 22, 2026
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