Mobile phone penetration has been a key factor in the adoption of cryptocurrencies and digital financial services in Africa. Here are some statistics that illustrate the extent of mobile phone penetration in Africa:

1. _Mobile phone subscriptions_: As of 2022, there are over 600 million mobile phone subscriptions in Africa, with a penetration rate of around 45% of the population.

2. _Smartphone adoption_: Smartphone adoption is also increasing rapidly, with over 30% of mobile phone users in Africa now using smartphones.

3. _Mobile internet access_: Mobile internet access is also on the rise, with over 40% of Africans now having access to the internet via their mobile phones.

4. _Financial inclusion_: Mobile phones have played a crucial role in increasing financial inclusion in Africa, with many people using mobile financial services such as M-Pesa, Airtel Money, and MTN Mobile Money.

5. _Cryptocurrency adoption_: The widespread use of mobile phones has also made it possible for people to access cryptocurrencies and other digital financial services, such as blockchain-based remittance platforms and cryptocurrency exchanges.

The high level of mobile phone penetration in Africa has created a conducive environment for the adoption of cryptocurrencies and other digital financial services, particularly among the unbanked population. This has the potential to drive financial inclusion, economic growth, and development in Africa.