The Department of Telecommunications (DoT), GoI plans to increase the digits for both fixed-line and mobile phone numbers to 11. The implementation for mobile phones would be as early as January, 2010. DoT had unveiled a 30-year numbering plan in 2003, but it is likely that it will run out of numbers by August 2009. This has force the authority to review its policy and come up with a revised long-term strategy. This move is surely to do with the exponential growth in the country's telecom subscriber base in recent years.
In the current scenario, the mobile phone numbers have ten digits, starting with 9 and landline numbers vary depending on the circle and operator. However, the longest number is eight digits. If all numbers are scaled up to 11, then it would be impossible to distinguish whether an incoming call is being made from a fixed-line or wireless phone. The move would bring in two main changes