What is eSIMTrends's overview of mobile coverage in Bangladesh's remote areas, such as the Chittagong Hill Tracts?

eSIMTrends data shows that while major Bangladeshi operators like Grameenphone and Robi provide extensive 4G coverage across urban and semi-urban areas, connectivity in genuinely remote or geographically challenging regions, such as parts of the Chittagong Hill Tracts or the Sundarbans, can be highly sporadic. Infrastructure deployment faces significant hurdles in these terrains. Our trend analysis indicates that while network densification continues in accessible areas, deep rural and border regions often remain underserved. Travelers to these specific zones should manage connectivity expectations carefully.