201, 204, 205, 207, 221, 222, 238, 241, 254, 257, 272, 277, 284, 288, 294, 319, 334, 350, 355, 362, 366, 383, 413, 445, 449, 453, 472, 488, 654, 753, 869, 891, 931, 991, 996 Brighton: 498, 540, 559, 919 Brookline: 218, 225, 234, 245, 307, 364, 576 Cambridge: 209, 253, 550, 600, 756, 829, 928, 940, 976, 998 Charlestown: 389, 452, 588 Chelsea: 776 Dorchester: 212, 217, 220 East Boston: 574 Everett: 363, 888 Hyde Park: 342, 345 Jamaica Plain: 203, 547, 719, 728 Milton: 598 Newton: 226, 229, 231, 232, 255, 404, 636 Quincy: 252, 403, 499, 526, 939 Roxbury: 399, 492, 544 Somerville: 227, 523, 995, 997 South Boston: 401, 496, 524 Watertown: 228 Winthrop: 201, 816 N11 codes 2-1-1: United Way Worldwide (UWW) and the Alliance for Information and Referral Systems (AIRS) 3-1-1: Used in Newton, Boston, and elsewhere for 3-1-1 services. 4-1-1: directory assistance 5-1-1: traffic information or police non-emergency services 6-1-1: unused (on landlines) 7-1-1: TDD relay (MassRelay) for the deaf 8-1-1: underground public utility location (Dig Safe), 9-1-1: emergency services See also List of area codes in Massachusetts References External links Massachusetts Area Code Map, Mass. Department of Telecommunications and Cable 1947 establishments in Massachusetts 2001 establishments in Massachusetts 617 617 Telecommunications-related introductions in 1947 Telecommunications-related introductions in 2001