Reference DataRate Center DirectoryFITZWILLIM, NH Rate CenterFITZWILLIM — NHData last updated: October 30, 2026LATA122StateNHArea Codes1Exchanges (NXX)1Carriers1Coordinates42.78095296790559, -72.14285078023136Area Codes603Top CarriersCarrierOCNNXX CountCONSOLIDATED COMM OF NO. NEW ENGLAND-NH51131