About this number
(516) 399 is a wireless/mobile based telephone number operated by Sprint Spectrum L.P. and is located in zip code 11950 in the city of Mastic, New York, which is in Suffolk County, and is in the Northeast. It has a Number Planning Area (NPA - also known as an Area Code) of 516 and Network Numbering Exchange (NXX - also known as a prefix) of 399. It has an Operating Company Number (OCN) of 6664. A Common Language Location Identifier (CLLI) of MSTCNYMCDS0. As well as a Local access and transport area (LATA) of 132. It was first assigned for usage on 01/17/2011. Zip code 11950 has a population of 16,268 as of the 2010 census.