We present the first empirical study of subnational hosting strategies, using Argentina’s 24 provinces as a case. Starting from official landing pages, we analyze \(\approx \) 1.2k domains (collected Oct 2023 – Apr 2024), classifying serving networks by operational control (sovereign, domestic third-party, global) and examining authoritative DNS and HTTPS deployment. We relate these choices to 31 demographic, economic, technological, and political covariates – associations only, not causal claims. We find substantial heterogeneity: some provinces operate sovereign infrastructure; others rely on domestic incumbents or outsource to global providers. Federal capacity is rarely used, with provinces favoring bespoke or repurposed networks (including utility backbones). Legacy telecom footprints remain strong predictors of hosting choice even within a shared national umbrella. We also observe frequent splits between hosting and nameservers and uneven HTTPS hygiene. Taken together, the study offers a reusable measurement template and benchmarks that make sovereignty–performance trade-offs measurable below the nation level.