California is among the most aggressive jurisdictions in terms of enforcing its regulations against telecommunications service providers. In particular, the California Public Utility Commission has aggressively targeted prepaid service providers. This Informational Memorandum analyzes and provides a detailed explanation of the compliance obligations imposed on various forms of prepaid telecommunications service providers operating in the State of California. We cover the license, registration, State USF and regulatory fee contribution obligations of providers of the following prepaid services: Prepaid Calling Cards, Prepaid Wireless, and Prepaid PIN-based services. This is an invaluable tool for all prepaid providers operating in the state to ensure you are complying with applicable laws and regulations.