The 787-799 exchange is serviced by the following companies within the BAYAMONSUR ratecenter.
PUERTO RICO TELEPHONE CO.
Call are routed trough OCN 3201 and CLLI - PJBYPRCODS1 (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in BAYAMON SUR.
Who's number is 787-799 Numbers?