Technology has made so much advancement in the past few years and Man has reached the moon and has touched the peaks of sky through the technological advancements. There was a time when there were no concept of phones since the time Graham Bell has invented the Telephone. Telephone made the life so much easy and people were happy with this invention because it made communication easy for people living far away from each other and it was the easiest mode of communication with each other at that time. Then an era came when mobile phone was invented the smallest portable device to carry and that was the time where mobile phone made the life so much easy and made the communication mode much easier for people. Now a days everyone has mobile phone in his/her hand. As there are two sides of picture always and pros and cons are always there with the use of any device. People started misusing the mobile phone and that misuse of mobile phone created so much trouble for people and people were very much upset by the scammers and frauds who fraud them and mislead them in various tasks, such scammers created so much trouble and disturbance for people and people were very much frustrated by their unlimited wrong and fake calls and fake identities.Technologists started thinking to make an application to lessen this frustration caused by scammers. So, as the technology advances and many application were there on Google play store on android and smart phones for health, beauty, fitness etc. which people use for different purposes. A new application made life easier and the name of that application is “Mobile Number Tracker” and lessened this trouble created by scammers.