


The Department of telecommunications (DoT) issued a notice to all telecom service providers on Tuesday, informing the change in the plan.The Department of Telecommunications (DoT) has amended the National Numbering Plan 2003 for migration to an 11-digit numbering plan in mobile services by prefixing the number ‘9’ to the existing two-digit PLMN Access Code.The mobile number has three components of numbering -- PLMN code, MSC code and subscriber number. The regulator wants another digit to be added to the PLMN code, which, at present, is a two-digit code. MSC code is a three-digit number, while subscriber number is a five digit code.
A new numbering plan was required because India’s mobile subscriber base has grown at a faster pace than expected.With India adding over 10-14 million mobile subscribers each month, the wireless subscriber base has already crossed 500 million, a year ahead of the target.Therefore, DoT has to re-examine plans to accommodate more subscribers.
The logic
However, it remains to be seen if operators would be able to migrate to new numbering plan at a short notice as all leading operators have said that it would be ‘next to impossible’ for the country to move to a 11-digit mobile number by January 2010 as this would involve making massive technical changes to both softwares and mobile network configurations, while adding that this process could take up to 12 months.Under the current 10-digit numbering scheme, only a maximum of one billion mobile numbers can be issued and the mobile connections in the country will cross this mark in the next couple of years. Pre-fixing an additional digit will allow the Indian telecom operators to issue up to 10-billion individual mobile numbers.