Massachusetts has several area codes:
413: western Mass, incl. Springfield;
508 & 774: Cape Cod, Worcester, southeast Mass.;
617 & 857: Boston;
781 & 339: Lynn, suburbs of Boston;
978 & 351: Lowell, northeast Mass.
The United States is in telephone country code +1.
The city of Boston, Massachusetts, along with Belmont, Brookline, Cambridge, Chelsea, Everett, Milton, Newton, Quincy, Somerville, Watertown, and Winthrop, uses area codes 617 and 857 (overlay).
The near suburbs, including Arlington, Lexington, Lynn, Malden, Medford, Revere, Waltham, and Weymouth, use area codes 781 and 339 (overlay).
Outer suburbs to the north, including Concord, Leominster, Lowell, and Salem, use area codes 978 and 351 (overlay).
Outer suburbs to the south, including Worcester, Framingham, Walpole, and Brockton, as well as Cape Cod, use area codes 508 and 774 (overlay).
Boston, England, uses UK area code 01205, or +44 1205 internationally.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, and many other countries use different prefixes.)
Lawrence, Mass., is in area code 978 with overlay area code 351.
In international format, prefix the area code with country code +1.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Boston is in area codes 617 and 857, with several other area codes in the suburbs.
Lowell, Massachusetts, is in area code 978 and overlay area code 351.
856
The address of the Lowell Historical Society is: Po Box 1826, Lowell, MA 01853-1826
The country code and area code of Imperatriz- MA, Brazil is 55, (0)99.
Belmont, MA, is in area codes 617 and 857.
The country code and area code of Ma U Bin, Myanmar is 95, (0)45.
Fitchburg, ma worcester, ma lawrence, ma lowell, ma springfield, ma
Weymouth, Massachusetts, is in area code 781 and overlay area code 339.
105,167 people live in Lowell
Middleton, Massachusetts, is in area code 978 and overlay code 351.
Lowell, MA is in pretty close proxmity to Boston, MA which as the majority of tourist attractions. While Lowell only has theaters and bowling alleys, Boston has duck boat tours, the Boston Aquarium, and The Museum of Science. You should visit Boston if you are in nearby Lowell.
Those are two completely separate questions. See the related questions below.
Lowell, MA
The address of the Lowell Heritage Partnership Inc is: Po Box 8744, Lowell, MA 01853-8744