About this number
(351) 555 is a landline based telephone number operated by Verizon New England Inc. and is located in zip code 01721 in the city of Ashland, Massachusetts, which is in Middlesex County, and is in the Northeast. It has a Number Planning Area (NPA - also known as an Area Code) of 351 and Network Numbering Exchange (NXX - also known as a prefix) of 555. It has an Operating Company Number (OCN) of 9102. A Common Language Location Identifier (CLLI) of ASLDMAMARS4. As well as a Local access and transport area (LATA) of 128. Zip code 01721 has a population of 16,593 as of the 2010 census.