The process for calling Saint Lucia from Paraguay is relatively straightforward. To make a call, you will need to dial the country code for Saint Lucia (1) followed by the telephone number. If you are calling a landline in Saint Lucia, the prefix is +1758. If you are calling a mobile phone in Saint Lucia, the prefix is +1758-6. If you need to dial an international number from Saint Lucia, the prefix is 00. Note that there may be additional charges associated with making international calls, so be sure to check with your service provider before making any calls.