Aspects of the present disclosure involve systems and methods for providing routing of a communication received at a telecommunications network based on a unique identifier. In particular, a telecommunications network may route one or more communications based on a dynamically updated trunk group identifier associated with an egress user. Thus, in addition to routing the communication based on a telephone number or Internet Protocol (IP) address associated with a user, the network may also route the communication based upon a dynamically updated trunk group identifier included in an updated routing function of the network.