The 939-437 exchange is serviced by the following companies within the TRUJILLOAL ratecenter.
TELEFONICA LARGA DISTANCIA DE PUERTO RICO - PR
Call are routed trough OCN 302B and CLLI - SNSJPR06CA0 (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in .
Who's number is 939-437 Numbers?