Bank Verification Number- BVN is CBN initiatives to make sure there is security, transparency, and ability to assess data easily in the right way.
This is practiced in the many developed countries. The innovation in Nigerian banking system is a good one, showing that the country is upgrading from developing country to a developed country.
Phone numbers are just eleven (11) digits, so, we now have 11digits more to memorize.

READ MORE AT http://www.busygisting.com/check-bvn-with-phone/