This session highlights the latest discoveries and methodological advancements in aeronomy across equatorial, low-, and mid-latitude regions. It focuses on the Equatorial Ionization Anomaly and ionospheric irregularities spanning these latitude ranges. We invite presentations on space- and ground-based measurements as well as modeling efforts. This session will emphasize how integrating these diverse, distributed observational resources can deepen our understanding of plasma electrodynamics, identify the seeding of ionospheric irregularities (like atmospheric waves, traveling ionospheric disturbances, and stratospheric warmings), and pave the way for robust nowcasting and forecasting tools.