1. A method for routing local telecommunications calls comprising: provisioning a core routing engine (CRE) with routing instructions corresponding to a plurality of customers, each customer being associated with a customer identifier, wherein the routing instructions specify whether calls are to be routed using at least one off-net route; receiving a telecommunications call; analyzing signaling information associated with the received telecommunications call to determine a customer identifier associated with the received telecommunications call and a dialed number associated with the received telecommunications call; using at least the dialed number to determine whether the received telecommunications call is a local call or a long distance call; if the received telecommunications call is a local call, then using at least the customer identifier to determine specific routing instructions for the received telecommunications call; and determining a route for the received telecommunications call based on the specific routing instructions.