Below are the mobile number series starting with 639720. 639720 mobile series has been awarded to Reliance JIO Operator for UP (West) Circle. So, all the numbers starting with 639720, including 6397200, 6397201, 6397202, 6397203, 6397204, 6397205, 6397206, 6397207, 6397208 and 6397209 belong to Reliance JIO UP (West). There are a total of around 10 Thousand (Ten Thousand) mobile numbers possible with the series 639720. With each sub-series like 6397200, around 1 thousand (999 to be precise) mobile numbers are possible.

You can click on any of the number series below to view the sub-series / list of numbers under them, starting with 639720 ( Six Three Nine Seven Two Zero ).