About this number
(956) 278 is a landline based telephone number operated by McImetro Access Transmission s and is located in zip code 78550 in the city of Harlingen, Texas, which is in Cameron County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 956 and Network Numbering Exchange (NXX - also known as a prefix) of 278. It has an Operating Company Number (OCN) of 7229. A Common Language Location Identifier (CLLI) of HRLNTXHGFMD. As well as a Local access and transport area (LATA) of 568. Zip code 78550 has a population of 53,152 as of the 2010 census.