Based on eSIMTrends's observations, what is the extent of 4G LTE availability versus 3G in Afghanistan?

eSIMTrends's data shows a growing trend of 4G LTE network expansion in Afghanistan, primarily concentrated within major urban centers such as Kabul, Kandahar, and Mazar-i-Sharif. However, outside these metropolitan areas, particularly in rural villages and less developed regions, connectivity frequently reverts to 3G or even 2G. Travelers should manage expectations regarding high-speed data availability when venturing beyond the main cities, reflecting the uneven infrastructure development trends.