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Methods and apparatus to identify wireless subscriber activity status

  • US 8,369,826 B2
  • Filed: 03/18/2009
  • Issued: 02/05/2013
  • Est. Priority Date: 03/18/2009
  • Status: Active Grant
First Claim
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1. A computer implemented method to identify a status of a wireless telephone number, comprising:

  • creating a list of telephone numbers (TNs) from an identified market of interest;

    distributing the list of TNs to a plurality of mobile switching centers (MSCs), each of the plurality of MSCs associated with a different carrier network;

    initializing each TN in the list of TNs as dormant;

    monitoring, with each MSC, each TN in the list of TNs during a monitoring duration for an MSC number in response to sending a short message service message to each of the TNs; and

    when the MSC number is received, associating one of the TNs in the list of TNs with an active status.

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