351-XXX-XXX Phone Numbers

Area code 351 is an overlay area code in Massachusetts established as part of the North American Numbering Plan (NANP). Its establishment aimed to ensure an adequate supply of telephone numbers for the growing population and businesses in the service area. Split from area code 978 in 2001, area code 351 serves several cities and towns in Massachusetts, including Lowell, Peabody, Beverly, Fitchburg, and more. This article will look closer at area code 351, exploring its geographic region, population, and some essential zip codes.

Geographic Region

Area code 351 is one of Massachusetts' three overlay area codes and primarily serves the northern and western parts of the state, excluding the cities on the Massachusetts-Rhode Island border. It covers a total area of 2,133 square miles and overlaps with area code 978. Some significant towns within area code 351 include Lawrence, Lowell, Haverhill, Gloucester, Beverly, Gardner, Fitchburg, Leominster, and Peabody.

Population

As of the 2020 United States Census, the population in the area code 351 region was approximately 1,557,609. Notably, the cities of Lowell and Beverly collectively account for about 265,000 residents. The implications of such a population trend are vast concerning the local and regional economies. The region's largest employers include healthcare, advanced manufacturing, software development, and various service providers. The education sector is also well-represented, with renowned institutions such as the University of Massachusetts Lowell, Middlesex Community College, Endicott College, and Northern Essex Community College.

Zip Codes

Area code 351 integrates a range of zip codes catering to residential and business addresses. Here are some of the unique zip codes in the 351 area code region:

- 01830 - Haverhill, MA
- 01850 - Lowell, MA
- 01915 - Beverly, MA
- 01923 - Danvers, MA
- 01960 - Peabody, MA
- 01970 - Salem, MA
- 01420 - Fitchburg, MA
- 01450 - Groton, MA
- 01453 - Leominster, MA
- 01463 - Pepperell, MA
- 01730 - Bedford, MA
- 01742 - Concord, MA
- 01810 - Andover, MA

Calls and Dialing Rules

To make a call in the area code 351 region, it is necessary to dial ten digits since the area code is an overlay. The ten digits comprise the three-digit area code and the seven-digit local number. It is important to remember that all calls made within the 351 area code region, even local calls, must use ten-digit dialing.

Area code 351 was established to address Massachusetts's increasing need for telephone numbers. It serves the northern and western parts of the state, including cities like Lowell, Peabody, Beverly, and Fitchburg. With its growing population and thriving economy, the area has become a prominent hub for various sectors such as healthcare and technology. For those living, working, or planning to move to the area code 351 region, understanding its geographic extent, population, and zip codes may prove helpful for navigating daily life and business interactions.