About this number
(307) 441 is a landline based telephone number operated by Big River Telephone Company, L and is located in the city of Casper, Wyoming and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 307 and Network Numbering Exchange (NXX - also known as a prefix) of 441. It has an Operating Company Number (OCN) of 642F. A Common Language Location Identifier (CLLI) of CSPRWYMAMMD. As well as a Local access and transport area (LATA) of 654. It was first assigned for usage on 10/20/2009.