Abstract: Example methods, apparatus and articles of manufacture to determine routing for identical virtual private network (VPN) numbers assigned to multiple companies are disclosed. A disclosed example method includes receiving a query from a switch module to determine routing information for a call initiated by a calling party, the query including dialed digits, a calling party identifier, and a route identifier representative of a route via which the call was initiated, selecting a private VPN number look-up table from a plurality of private VPN number look-up tables based on the calling party identifier, and to perform a lookup within the selected private VPN number look-up table based on a portion of the dialed digits and the route identifier, the lookup to identify the routing information associated with the dialed digits, and transmitting the routing information to the switch module.

Abstract: A method and system for handling identical VPN numbers assigned to multiple companies using a nature of address/number identifier initiated as public. The method includes receiving a query from a switch module to determine routing information for a call initiated by a calling party, the query including dialed digits with a nature of address identifier, and a calling party identifier updating the nature of address identifier associated with dialed digits to a private type code if a VPN coding identifier is determined present, looking up routing information associated with the dialed digits in a look-up table corresponding to the calling party identifier if the nature of address identifier includes the private type code, and transmitting the routing information to the switch module.