Maryland Statutes
Subtitle 1 - Definitions; General Provisions
Section 11-108 - Prepaid Telephone Service

The sale or recharge of a prepaid telephone calling arrangement is taxable in the State if:
        (1)    the sale or recharge takes place at the vendor’s place of business located in the State;
        (2)    the buyer’s shipping address is in the State; or
        (3)    there is no item shipped, but the buyer’s billing address or the location associated with the buyer’s mobile telephone number is in the State.