No matter where you go in this world, you’ll undoubtedly be curious about your coverage. Visit the carrier website, and buried deep in the sitemap lies a coverage map. An often out-of-date map that probably stretches the truth a bit about their coverage. Even in 2015, your coverage is a bit of a 'guesstimate'. T-Mobile is changing that, today unveiling a more accurate map of their coverage that depends on real-time feedback from actual customers, not assumed cell tower saturation.