No, there is no area code 141 in North America (USA, Canada, etc.); North American area codes cannot begin with 1.
Boston, Massachusetts, is served by area code +1 617 and overlay area code +1 857.
(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.)
The 781 area code is for suburban Boston, not the center city. North American area code 781 is in the suburbs of Boston, Massachusetts, including Lexington. Area code 339 is an overlay on the same geographic area as 781.
The 781 area code is for suburban Boston, not the center city. North American area code 781 is in the suburbs of Boston, Massachusetts, including Lexington. Area code 339 is an overlay on the same geographic area as 781.
There is no area code 071 in North America. North American area codes never begin with zero.
There is no area code 338 in North America (USA, Canada, etc.).
There is no area code 483 in North America (USA, Canada, etc.). International country code +48 is Poland.
There is no area code 139 in North America (USA, Canada, etc.). North American area codes cannot begin with 1.
There appears not to be an area code 625 in North America, but rather is assigned to the Marshall Islands in the Pacific Ocean.
There is no area code +1 851 in North America.
Area code 558 is unassigned in North America (USA, Canada, etc.). International country code +55 is Brazil.
Telephone country code +1 is North America (USA, Canada, etc.), but there is no area code 121 in North America. It is an invalid number.
North American area code +1 802 is the U.S. state of Vermont.
Area code 847 is the suburbs north of Chicago, including Evanston and Skokie. It is overlaid with area code 224.