Area code 781 and 339 are telephone area codes in the North American Numbering Plan for the U.S. state of Massachusetts. The numbering plan area consists of Boston’s inner suburbs along the Route 128 corridor, and some outer suburbs, especially in the South Shore region. Major cities and towns with the area code include Waltham, Woburn, Lynn, Weymouth and Dedham. It was created as in an area code split of area code 617 on September 1, 1997."Code of Confusion: Phone Company Fears Change Will Hang Us Up". Associated Press. Daily Evening Item (Lynn, Massachusetts). p. 1. Use of 781 became mandatory February 1, 1998."New area codes began Sunday". Associated Press. North Adams Transcript (North Adams, Massachusetts). p. A8. Area code 339 is an overlay complex code for the same service area, activated on May 2, 2001.Howe, Peter J. (March 29, 2001). "Get Set to Dial 10 Digits: New Rules Start Monday for all Eastern Mass. calls". Boston Globe. p. A1. Since then, ten-digit dialing has been mandatory.
Some mobile telephone numbers assigned in the 1990s to rate centers in 781 and 339 kept the 617 area code just on those mobile lines after the split.
As of 2026, both 781 and 339 are well supplied with available numbers, and exhaustion is not projected until 2156.
Service area The area codes serve most of the South Shore, and the suburbs along Route 128 and surrounding towns. The service area includes portions of the following counties: Essex Middlesex Norfolk Plymouth Suffolk
Communities:
Abington Arlington Bedford Braintree Burlington Canton Cohasset Dedham Duxbury Halifax Hanover Hanson Hingham Holbrook Hull Kingston Lexington Lincoln Lynn Lynnfield Malden Marblehead Marshfield Medford Melrose Nahant Needham Norwell Norwood Pembroke Plympton Randolph Reading Revere Rockland Saugus Scituate Sharon Stoneham Stoughton Swampscott Wakefield Waltham Wellesley Weston Westwood Weymouth Whitman Winchester Woburn
Central office codes by location
781-NXX Arlington (includes part of Medford): 316, 443, 483, 488, 574, 583, 641, 643, 645, 646, 648, 777, 819, 844, 859 Braintree: 228, 267, 303, 348, 353, 356, 380, 394, 428, 510, 519, 535, 602, 654, 664, 794, 796, 817, 843, 848, 849, 884, 917, 926, 930, 952, 964 Burlington: 202, 203, 221, 229, 238, 262, 265, 270, 272, 273, 313, 328, 345, 359, 362, 365, 387, 418, 425, 442, 494, 505, 552, 564, 565, 601, 653, 685, 730, 743, 744, 750, 757, 791, 825, 852, 892, 896, 993, 998 Canton: 232, 298, 302, 332, 363, 364, 401, 415, 562, 571, 575, 615, 633, 713, 737, 739, 746, 770, 774, 821, 828, 830, 989 Cohasset: 210, 236, 383, 527, 923 Dedham (includes part of Westwood): 223, 251, 320, 326, 329, 355, 366, 375, 381, 407, 410, 441, 459, 461, 467, 471, 492, 493, 613, 636, 686, 690, 708, 742, 751, 752, 801, 915 Hingham: 374, 385, 556, 630, 706, 735, 740, 741, 749, 783, 804, 836, 875, 903, 908, 919 Hull: 214, 242, 773, 925 Lexington (includes Bedford): 226, 230, 240, 266, 271, 274, 275, 276, 280, 301, 323, 325, 354, 357, 372, 377, 382, 402, 430, 456, 457, 458, 482, 515, 532, 533, 538, 541, 553, 597, 652, 669, 671, 674, 676, 687, 698, 734, 748, 761, 766, 778, 841, 845, 860, 861, 862, 863, 869, 879, 918, 945, 958, 981, 999 Lincoln: 259 Lynn: 215, 244, 248, 254, 268, 309, 346, 477, 479, 581, 584, 586, 592, 593, 594, 595, 596, 598, 599, 632, 691, 710, 715, 718, 731, 771, 780, 842, 910, 913 Malden: 288, 321, 322, 324, 333, 338, 388, 397, 399, 420, 480, 502, 605, 627, 661, 667, 851, 870, 873, 905, 912 Medford: 219, 306, 350, 391, 393, 395, 396, 475, 498, 518, 526, 539, 628, 655, 658, 723, 827, 866, 874, 957, 960 Melrose: 432, 462, 517, 590, 606, 620, 662, 665, 712, 720, 979 Needham: 247, 292, 343, 400, 429, 433, 444, 449, 453, 455, 465, 474, 495, 514, 540, 559, 644, 657, 707, 719, 726, 727, 898, 965, 972 Norwood (includes part of Westwood): 255, 369, 278, 349, 352, 414, 440, 501, 551, 603, 619, 634, 680, 688, 702, 725, 762, 769, 856, 881, 929, 948, 949, 956 Randolph (includes Holbrook): 300, 308, 390, 437, 473, 506, 510, 607, 767, 785, 815, 824, 885, 888, 961, 963, 986 Reading: 205, 282, 315, 439, 509, 649, 670, 673, 677, 758, 764, 765, 779, 872, 909, 942, 944 Revere: 241, 284, 286, 289, 426, 485, 549, 560, 629, 656, 808, 823, 853, 858, 922, 951, 953, Saugus: 231, 233, 558 Scituate: 545 Stoneham: 279, 435, 438, 454, 481, 507, 568, 572, 799, 832, 835, 850, 954, 984 Wakefield: 213, 224, 245, 246, 258, 295, 360, 451, 486, 548, 557, 567, 587, 621, 683, 716, 876, 914, 928, 968 Waltham (includes part of Weston): 207, 208, 209, 212, 216, 249, 250, 256, 290, 296, 299, 314, 317, 330, 370, 373, 386, 392, 398, 409, 419, 434, 464, 466, 472, 478, 487, 513, 516, 522, 529, 530, 543, 547, 577, 609, 612, 614, 622, 642, 647, 663, 668, 672, 678, 684, 693, 697, 699, 736, 768, 775, 786, 788, 790, 795, 810, 833, 839, 864, 890, 891, 893, 894, 895, 899, 902, 906, 907, 916, 966, 996 Wellesley (includes part of Weston): 235, 237, 239, 263, 283, 304, 371, 416, 431, 446, 489, 591, 694, 705, 772, 943, 992, 997 Weymouth: 277, 331, 335, 337, 340, 413, 534, 624, 626, 637, 682, 724, 789, 803, 812, 901, 927, 974, 985 Winchester: 218, 358, 368, 369, 389, 570, 589, 604, 625, 717, 721, 722, 729, 756, 760, 838, 971, 977, 983 Woburn: 281, 287, 305, 367, 376, 404, 405, 460, 491, 496, 497, 503, 504, 528, 537, 569, 608, 638, 640, 696, 704, 759, 782, 787, 865, 883, 897, 904, 932, 933, 935, 937, 938, 939, 962, 670, 994, 995
339-NXX Arlington: 368, 707 Braintree: 235 Bryantville: 244, 933 Burlington: 234 Cambridge: 550, 940, 976 Canton: 237, 502 Cohasset: 337 Dedham: 204 Hingham: 200, 236 Kingston: 309, 832 Lexington: 223, 970 Lincoln: 333 Lowell: 920 Lynn: 440, 883 Malden: 224 Marshfield: 793 Medford:221, 545, 674 Melrose: 293 Needham: 225 Norwell: 613 Norwood: 206 Randolph: 987 Revere: 226, 532 Rockland: 469, 788 Saugus: 600 Scituate: 526 Sharon: 230, 364 Wakefield: 203, 219 Waltham: 222, 814 Wellesley: 686 Weymouth: 355, 499 Woburn: 227, 298, 645, 927
N11 codes
2-1-1: United Way Worldwide (UWW) and the Alliance for Information and Referral Systems (AIRS) 3-1-1: unused 4-1-1: directory assistance 5-1-1: traffic information or police non-emergency services511 Massachusetts (treated as calling to the 617 area code) 6-1-1: unused 7-1-1: TDD relay (MassRelay) for the deafMass Relay 8-1-1: underground public utility location (Dig Safe),Dig SafeSee FCC Doc. No. 92–105 http://fjallfoss.fcc.gov/edocs_public/attachmatch/DOC-257293A1.doc 9-1-1: emergency servicesState 911 Department
See also List of area codes in Massachusetts List of North American Numbering Plan area codes
References
External links
Massachusetts Area Code Map, Mass. Department of Telecommunications and Cable