Below are the mobile number series starting with 8604. 8604 mobile series has been awarded to Tata Docomo Operator for UP (East) Circle. So, all the numbers starting with 8604, including 86040, 86041, 86042, 86043, 86044, 86045, 86046, 86047, 86048 and 86049 belong to Tata Docomo UP (East). There are a total of around 10 lac (One million) mobile numbers possible with the series 8604. With each sub-series like 86040, around 1 lac (99,999 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 8604 ( Eight Six Zero Four ).