State and local governments have a need to understand the spatial distribution of telecommunications infrastructure and services in order to plan for a competitive information economy and for universal services. This paper presents Pennsylvania's (link-to-learn) experiences in the comprehensive mapping of the State-wide telecommunications infrastructure using Esri's GIS technology. Problems of representation and the assessment of telecommunications infrastructure are discussed, together with proposed solutions based on spatial modeling techniques. An interactive mapping server has been developed (using MapObjects) to facilitate sharing and usage of this public information.