About this number
(603) 818 is a wireless/mobile based telephone number operated by Sprint Spectrum L.P. and is located in zip code 03801 in the city of Portsmouth, New Hampshire, which is in Rockingham County, and is in the Northeast. It has a Number Planning Area (NPA - also known as an Area Code) of 603 and Network Numbering Exchange (NXX - also known as a prefix) of 818. It has an Operating Company Number (OCN) of 6664. A Common Language Location Identifier (CLLI) of PTMONHBN3MD. As well as a Local access and transport area (LATA) of 122. It was first assigned for usage on 07/08/2002. Zip code 03801 has a population of 21,532 as of the 2010 census.