Syma is a mobile virtual network operator (MVNO) of French mobile specializing in national and international telecommunications, registered to ARCEP with the status of MVNO since 2008. The brand is the property of the company SYMA FI SAS, 153 Avenue d'Italie, 75013 Paris, France. SYMA offers low-cost, non-binding, fixed-price, or prepaid mobile telephony services and many additional features. You have complete freedom to decide when and how much credit to add to your prepaid SIM card. Select the amount of your top-up according to your needs. You will then be able to take advantage of your new phone credit for all of your communications (calls and texts) but also to go online.