So it's impossible for you?
Exactly that fiber optic cable throughout the entire country and all data centers in Tanzania are under the ownership of the government, the constructors paid by the government to do so
and now TTCL cooperation 100% government property is operating the system and selling internet to the rest of services providers including tigo, airtel (45% government owned), vodacom, smart, halotel and TTCL itself.
It's so funny your three feet country size failed to construct the system with its own funds, you have many stakeholders to that little thing as if you networked the entire world