(351) Area Code Business Phone Numbers

The 351 area code arrived in 2001 as an overlay on top of the older 978 code, meaning ten-digit dialing became standard across northern and central Massachusetts. For a business, the practical takeaway is simple. A 351 number sits in the same local calling area as any 978 number, so customers in Lowell, Lawrence, or Gloucester see it as their own.

Lowell itself is home to more than 115,000 residents and a downtown that mixes old textile mills with a growing arts and restaurant scene[1]. The city also runs a small business loan program through federal Community Development Block Grants, offering zero-interest, forgivable loans to companies that stay in town and create jobs[1]. Add in the UMass Lowell Innovation Hub at 110 Canal Street, which gives early-stage founders access to co-working space and a prototyping lab, and you have a real ecosystem for launching something[2].

A local number still matters here. Merrimack Valley customers screen unknown calls hard, and a 351 or 978 prefix on caller ID is often the difference between getting picked up and getting sent to voicemail. Tonet lets you pick a 351 number in a few minutes without a contract, so you can test the local footprint without committing to a year of service.