This study examines the relationship between household income levels, online engagement, and digital infrastructure—represented by the presence of submarine cable landing points—across various regions in the Philippines. Utilizing machine learning techniques, specifically ridge and lasso regressions, the study quantifies these relationships while identifying regional disparities in digital economic participation. This research extracts data from the Philippine Statistics Authority (PSA) APIS 2022 on income and online activities, covering 43,517 household observations, and web-scraped digital infrastructure data from TeleGeography. Findings show that while digital infrastructure expansion correlates with increased income, the benefits are unevenly distributed across groups. The impact of submarine cables on low-income households is weak unless it is complemented with online engagement measures. The interaction between submarine cable presence and digital engagement yields negative effects for low-middle class households, suggesting possible barriers in fully capitalizing on infrastructure improvements. By providing a stratified analysis of income effects, this paper contributes to the growing literature on digital inclusion and economic development in emerging markets. Policymakers may leverage these insights for digital transformation strategies. Future research could explore additional variables and tap more on the role of digital literacy, market accessibility, online competition, and affordability of digital equipment to further quantify the impact of digitalization on economic equity.