Area code 351
Area code 351 serves Lowell and nearby parts of Massachusetts, including Lawrence, Haverhill and Peabody. It is on Eastern Time, which observes daylight saving time. 978 is an overlay for the same area.
Area code 351 at a glance
| State | Massachusetts (MA) |
| Main city | Lowell |
| Time zone | Eastern Time |
| UTC offset | UTC−5 in winter, UTC−4 in summer |
| Daylight saving time | Yes |
| Overlay codes | 978 |
Cities in 351
- Lowell
- Lawrence
- Haverhill
- Peabody
An area code shows where a number was first assigned. Mobile numbers keep their area code when people move, so the person you’re calling may be somewhere else.
When you can call a 351 number
Federal telemarketing rules under the TCPA allow sales calls between 8 AM and 9 PM in the called person’s local time. Here is that window for a 351 number, shown in your own time zone.
General information, not legal advice. Some states add rules for Sundays, holidays or the number of calls. See our calling hours guide.
| If you’re on | You can call 351 between |
|---|---|
| Eastern | 8:00 AM to 9:00 PM |
| Central | 7:00 AM to 8:00 PM |
| Mountain | 6:00 AM to 7:00 PM |
| Arizona | 5:00 AM to 6:00 PM |
| Pacific | 5:00 AM to 6:00 PM |
See the time in 351 without leaving your CRM
Parse is a free Chrome extension that shows the local time and weather beside every phone number on the page.
Other area codes in Massachusetts
Questions about 351
What time zone is area code 351?
Area code 351 is on Eastern Time. It observes daylight saving time.
Where is area code 351?
Area code 351 is in Massachusetts. Its main city is Lowell, and it also covers Lawrence, Haverhill and Peabody.
What are the legal hours to call a 351 number?
Under the federal TCPA, sales calls are allowed from 8 AM to 9 PM in the called person’s local time. Personal and informational calls are not limited by these hours.
What area codes overlay 351?
978 covers the same area as 351, so numbers in the same town can have either code.