A mobile network operator can also be known as a cellular company, wireless service provider, mobile network carrier, wireless carrier or simply MNO is a wireless communications service provider that either controls or owns the necessary infrastructure required to sell and deliver services to its users. The services include billing, back haul infrastructure, provision of computer systems and marketing, wireless network infrastructure, repair organizations, radio spectrum allocation, and customer care. The telecommunications industry has evidently developed over recent years to become a significant part of business and day to day life for all people from all walks of life.