Lowell, Massachusetts
351 Area Code
Establish a trusted local presence in Lowell and northeastern Massachusetts with a 351 area code number. Ideal for businesses targeting higher pickup rates and local trust across Essex, Middlesex, Worcester and Franklin counties.
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About 351 Area Code
Area code 351 serves Lowell and northeastern Massachusetts. Introduced on May 2, 2001 as an overlay to area code 978, the 351 code covers major cities including Lowell, Lawrence, Haverhill, Peabody, Salem, Beverly, Leominster and Fitchburg, spanning Essex, Middlesex, Worcester and Franklin counties. The code supports local voice and SMS-capable numbers used by manufacturers, healthcare providers, universities and service businesses throughout the region.
The 351 region blends historic textile heritage with modern diversification. Lowell and Lawrence bring manufacturing roots with contemporary tech and healthcare sectors, while UMass Lowell drives student services and research demand. The coastal towns of Salem, Gloucester and Newburyport add tourism and maritime industries. Businesses use 351 numbers for customer support, appointment scheduling, sales outreach and logistics coordination because local numbers generate stronger recognition and response rates than toll-free alternatives.
FoneSwift lists live 351 inventory with full capability details on this page. Search numbers to verify Voice, SMS and MMS support. Because 351 is an overlay code sharing territory with 978, availability fluctuates. If specific 351 numbers are not available, nearby overlays (339, 617, 781) or the partner code 978 can still deliver strong regional presence for Greater Boston audiences.
If you target northeastern Massachusetts or Greater Boston markets, display numbers in both local and E.164 formats (e.g., (351) 555-1234 and +1 351 555 1234) and register A2P messaging traffic for business SMS campaigns. Porting is supported when carriers permit geographic transfers. Many businesses port their existing numbers to preserve customer recognition and reduce friction during platform transitions.
| Country | United States |
| State | Massachusetts |
| Area code | 351 |
| Primary cities | Lowell, Lawrence, Haverhill, Peabody |
| Counties served | Essex, Franklin, Middlesex, Worcester |
| Timezone | America/New York (EST) |
| Created | May 2, 2001 |
| International Format | +1 351 XXX XXXX |
| Local Format | (351) XXX-XXXX |
10-digit dialing is required for all calls within and into the 351 region due to overlay with 978. Register A2P messaging for business SMS to comply with US carrier rules (10DLC).
Area code 351 uses Eastern Standard Time (EST, UTC-5) and observes Daylight Saving Time, shifting to Eastern Daylight Time (EDT, UTC-4) during summer months.
Local numbers drive higher answer rates and local trust. If 351 inventory is limited, consider the overlay partner code 978 or nearby Boston-area codes (339, 617, 781) to maintain strong regional presence.
Quick Facts about 351 Area Code
Interesting tidbits about this area code 351
Overlay introduction
Area code 351 was created in 2001 as Massachusetts' first overlay code to meet growing demand from wireless, business lines and pagers without splitting existing 978 territories.
Textile heritage
Lowell and Lawrence were epicenters of America's Industrial Revolution. Historic mill buildings now house tech startups, universities and mixed-use developments that blend heritage with modern commerce.
University presence
UMass Lowell generates consistent local number demand for admissions, campus services, research labs and student housing, making 351 a strong code for education-focused businesses.
Coastal towns included
The 351 footprint extends to historic coastal communities like Salem, Gloucester and Newburyport, adding maritime industries, tourism and seafood businesses to the economic mix.
10-digit dialing required
Because 351 overlays 978, all calls require 10-digit dialing (area code + number) even for local calls. This ensures proper routing and has been mandatory since May 2001.
Immigrant gateway cities
Lawrence maintains strong immigrant communities with vibrant Hispanic populations, while Lowell hosts significant Cambodian and Southeast Asian communities, creating diverse customer bases for multilingual services.
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How Does Local 351 Phone Numbers Work?
A local business number is a structured telephone identifier that tells networks where to route calls and messages. When you use a 351 number in Lowell and Massachusetts, the digits signal the international gateway, the geographic region, the local exchange and the specific subscriber, so calls reach the right destination quickly and reliably.
The typical parts of a United States local number are:
- Country code (+1): identifies United States for international routing.
- Area code (351): directs the call to the Lowell / Massachusetts region.
- Central office / exchange (eg. 555): narrows the call to a local switching area or rate center.
- Subscriber number (eg. 1234): the unique line assigned to a person, extension, or device.
Example formats:
| International Format (E.164) | +1 351 555 1234 |
| Local Format (National) | (351) 555-1234 |
Quick Dialing Guide
The correct formats to reach 351 numbers locally and globally.
From Landlines
Standard United States FormatUse for domestic long-distance calls within United States.
From Mobile
E.164 InternationalThe universal format. Works on any mobile device, anywhere.
International
From abroadDialing from outside United States (exit code 00 varies by country).
With FoneSwift, your 351 number can be instantly configured through our intuitive dashboard. Connect it to call forwarding rules, AI voice agents, IVR menus, or route calls directly to any device. Enable voice, SMS, and MMS capabilities right from your account, no technical setup required. Your number becomes active immediately after purchase, and you can update routing, business hours, and integrations anytime.
For businesses, local numbers offer clear benefits: higher answer rates, stronger local recognition, and better performance for local campaigns and customer trust. Typical business features include call forwarding, call recording, auto-attendants, voicemail-to-email, and multi-device ringing.
Important operational notes:
- SMS & A2P: If you plan to send application-to-person messages from a 351 number, register your traffic where required and follow carrier rules (10DLC/A2P) to avoid deliverability or throughput issues.
- Number Porting: Bring your existing 351number to FoneSwift seamlessly. Our team handles the entire porting process, simply submit your number details and we'll coordinate with your current provider. Porting typically completes within 5-10 business days, and you'll receive updates at each step. There's no service interruption during the transfer.
- Display & formatting: Always publish numbers in both local and E.164 formats so international and mobile users can easily dial.
Ready to get started? Browse available 351 numbers in the phone numbers section above, you'll see real-time availability and can filter by features like voice, SMS, and MMS. Once you find your perfect number, purchase it in seconds and start making calls immediately. Our team is here to help you choose the right setup for your business needs, whether you're setting up AI receptionists, call forwarding, or SMS campaigns. Start your 14-day free trial today, no credit card required.
How to Get a 351 Phone Number
Buying a local 351 phone number using FoneSwift is easy and takes just a few minutes. Follow these simple steps to get your local 351 phone number and start connecting with customers in United States today.
Create a new account on FoneSwift or sign in to your existing account to get started.
Once logged in, you'll be taken to your FoneSwift dashboard where you can manage all your phone numbers and settings.
Click on Settings in the sidebar, then go to "My Numbers" and click the "Add a Number" button.
Choose United States as your country from the dropdown menu.
Select Local as the type of number, then choose the 351 area code from the available options.
Click the "Search" button to see all available phone numbers with the selected area code.
Browse through the available numbers, select one that fits your needs, click "Buy Number", and confirm your purchase.
Your number is now active! Start making and receiving calls from the FoneSwift Dialer immediately.
You can configure your number to handle calls, forward calls, or even create an AI voice agent to handle the calls for you.
Businesses Using 351 Phone Numbers
Northeastern Massachusetts hosts manufacturing, education, healthcare, tourism and technology sectors. Local phone numbers are widely used for customer-facing operations and regional marketing campaigns.
Manufacturing & plastics
Leominster and Lawrence retain manufacturing strength in plastics, textiles and specialty goods. Local numbers support supplier coordination, customer orders and B2B sales across New England.
Higher education & research
UMass Lowell, Middlesex Community College and numerous regional campuses use local numbers for admissions, student services, campus operations and research partnerships that benefit from local recognition.
Healthcare & medical services
Lowell General Hospital and regional clinics rely on local numbers for patient scheduling, telehealth, appointment reminders and emergency services. Local area codes improve answer rates for medical communications.
Tourism & hospitality
Historic sites in Salem, coastal attractions in Gloucester and Newburyport, and Lowell's National Historical Park drive tourism demand for hotel reservations, tour bookings and visitor services using trusted local numbers.
Retail & small business
Downtown shops, specialty retailers and service providers across the 351 region use local numbers for order inquiries, delivery coordination and customer service that feels neighborhood-focused.
Technology & startups
Converted mill spaces in Lowell and Lawrence house tech startups, software firms and innovation labs that use local numbers for investor relations, client demos and recruiting talent from regional universities.
Why Choose 351 Local Phone Number for Your Business?
Discover the advantages of having a local phone number that builds trust, increases engagement, and drives results.
Powerful Features for Your 351 Local Phone Number
Get the most out of your localphone number with FoneSwift's enterprise-grade features designed to help your business communicate more effectively.
Nearby Area Codes
Explore other area codes in the same region to expand your local presence.
Frequently Asked Questions
What cities use the 351 area code?
When was the 351 area code created?
Can I get SMS-capable numbers in area code 351?
Is 10-digit dialing required for 351 numbers?
Is 351 a toll-free code?
How do I buy a 351 local phone number?
Can I port my existing 351 number to FoneSwift?
Where can I find official information about the 351 area code?
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