Below are the mobile number series starting with 8580. 8580 mobile series has been awarded to BSNL Mobile Operator for Bihar & Jharkhand Circle. So, all the numbers starting with 8580, including 85800, 85801, 85802, 85803, 85804, 85805, 85806, 85807, 85808 and 85809 belong to BSNL Mobile Bihar & Jharkhand. There are a total of around 10 lac (One million) mobile numbers possible with the series 8580. With each sub-series like 85800, 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 8580 ( Eight Five Eight Zero ).