According to Coinmarketcap, there are currently 2273 different cryptocurrencies in 19030 markets. The main blockchain remains in the Bitcoin network, also the Ripple, Ethereum and Thether networks are listed among the best blockchains as well. In the coming months, the number of cryptocurrencies could increase to 3000.
At this rate, in 2019 the use of bitcoin and other cryptocurrencies could be generalized worldwide, even in underdeveloped countries, with the limitations of country regulations and prohibited jurisdictions.