The document outlines the sole source justification for a service contract awarded to AT&T Enterprises, LLC for local access services at March Air Reserve Base (MARB). The contract, totaling approximately $479,345.10 over multiple periods from 2025 to 2030, aims to provide necessary infrastructure for local exchange services. AT&T was deemed the sole provider due to its legacy ownership of the existing copper infrastructure used for telephone services, complicating efforts to upgrade to more modern, cost-effective systems. Market research indicated a lack of small business providers capable of offering comparable services without incurring significant additional costs. The decision to work with AT&T allows for reduced installation costs as AT&T will waive fees for transitioning to a more efficient fiber-optic system, ultimately providing financial savings for the government while ensuring service continuity. The justification demonstrates compliance with federal regulations and outlines a fair cost assessment, establishing that alternatives would involve excessive expenses. This procurement effort reflects the Air Force's strategy to enhance telecommunications infrastructure while optimizing budgetary spending.