MYTEL, the new fourth company, has promised 4G to 95% within three years, investing well over $1B. They will launch their 4G-only network with 7K base stations across most of the country early in 2018. Adjusted for population, they begin with about 80% of the cell sites of Verizon or AT&T and rapidly surpass the U.S. giants.
90% to 95% LTE coverage is rapidly becoming common across the developing world. Reliance Jio is soon at 95% as well. On the other hand, while South Africa claims 99% 3G coverage, ICASA estimates only 75% 4G. Today's 4G is three to eight times as efficient as 3G and hence much cheaper per bit. Almost all networks are rapidly upgrading.
The wireless explosion in Myanmar is almost miraculous. Six years ago, fewer than 1% had mobile phones. Today, Bloomberg estimates 90% are connected.