Jersey is a British Crown dependency located in the English Channel. Jersey is a beautiful island with a mild climate, making it a popular tourist destination. The official language of Jersey is English, but Jersey French is also spoken. Jersey is part of the British Isles and is not part of the European Union. To call Jersey from Tanzania, you will need to dial the international access code for Tanzania, which is +255, followed by the Jersey country code, which is 44, and the Jersey telephone number.