How much does it cost to obtain geniune data (phone numbers only) of residents of any State in Nigeria. For example, If I want to send bulk sms to the phone numbers/users ( mtn, glo, zain, etisalat networks) currently resident in Jigawa State. I currently use a sms website for business, all I need is the mined data (phone numbers only) of residents of any particular State in Nigeria. Is this data available and how much does it cost. I am willing to buy if I can get genuine data. Please note that these mined data(phone numbers) are not static because people move, relocate, dump their numbers, etc.