Reference DataRate Center DirectoryHLLSBUPVLG, NH Rate CenterHLLSBUPVLG — NHData last updated: October 30, 2026LATA122StateNHArea Codes1Exchanges (NXX)1Carriers1Coordinates43.11962466075426, -71.92367975249084Area Codes603Top CarriersCarrierOCNNXX CountGRANITE STATE TEL., INC.00391