Find any 351- phone number in Massachusetts
The 351 area code is a region of the North American Numbering Plan (NANP) that encompasses much of the Middlesex and Worcester counties of Massachusetts. It was implemented in 2001 as part of an NANP split to reduce overpopulation of the existing 508 area code. The new 351 area code splits off both Eastern and Central Massachusetts and includes the cities of Framingham, Natick, Sudbury, and Worcester.
The NANP is the telephone numbering plan for the US, Canada, and several Caribbean nations, and it is regulated by the North American Numbering Plan Administrator. The system divides region all across the continent into area codes, which delineate geographic locations, and assigns each a 3-digit code. Within the NANP, the 351 area code is just one of the many area codes contributing to the continent-wide patchwork. As updates to the NANP system are applied and telecommunications demands are adjusted, the 351 area code will evolve and continue to offer essential telecommunication services to Massachusettes.