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Area code 617



Area code 617 (created in 1947) is the area code for the cities of Boston, Brookline, and Quincy, Massachusetts, Massachusetts (LATA code 128).

It was one of the original area codes from October 1947, and originally covered the eastern half of Massachusetts from Cape Cod in the east to Worcester in the west. The decision to assign 617 to Boston was somewhat unusual, since the North American Numbering Plan Administrator wanted to keep the number of "clicks" to a minimum for large cities given the rotary dialing technology of the time.[1] Area code 617 has 14 clicks, one of the most for an original area code assigned to a major city.

Due to the rapid growth of Boston's suburbs, most of the western and southern portion split off as 508 in 1988. This was intended as a long-term solution, but within a decade 617 was close to exhaustion once again due to the demand for more phone lines for auxiliary devices (mobile phones, fax machines, pagers, and BBS lines). In 1997, most of Boston's outer suburbs split off as 781, which almost completely surrounds 617. This reduced 617 to essentially the inner ring of Greater Boston. On May 2, 2001, 857 was overlaid onto 617.

Splits from area code 617

  • 508 - Split on July 16, 1988 & finished January 1, 1989 (978 split from 508 on September 1, 1997)
  • 781 - Split on September 1, 1997 & finished February 1, 1997

Communities

Counties

Portions of the following counties are covered:

Central Office codes (By location)

(617)-NXX

  • Belmont: 209, 404, 484, 486, 489, 672, 826, 855, 883, 932, 977, 993
  • Boston Central: 204, 205, 210, 212, 217, 222, 223, 224, 226, 227, 228, 235, 236, 239, 246, 247, 248, 255, 259, 261, 262, 263, 266, 267, 275, 279, 283, 289, 292, 293, 295, 303, 304, 305, 306, 309, 310, 312, 314, 316, 320, 330, 331, 338, 341, 342, 343, 345, 346, 348, 350, 351, 352, 353, 356, 357, 358, 366, 367, 368, 369, 371, 372, 373, 375, 377, 378, 385, 391, 392, 399, 406, 407, 412, 413, 414, 416, 421, 422, 423, 424, 425, 426, 428, 429, 434, 437, 438, 439, 443, 447, 448, 449, 450, 451, 456, 457, 459, 470, 476, 478, 480, 482, 488, 490, 502, 504, 507, 510, 512, 513, 515, 517, 519, 521, 523, 526, 530, 531, 532, 534, 535, 536, 542, 543, 549, 556, 557, 563, 565, 570, 571, 572, 573, 574, 578, 579, 585, 587, 589, 590, 592, 593, 594, 595, 598, 603, 619, 620, 624, 626, 635, 636, 637, 638, 643, 645, 646, 648, 650, 654, 662, 664, 670, 671, 672, 680, 683, 686, 692, 694, 695, 697, 699, 717, 719, 720, 721, 722, 723, 724, 725, 726, 727, 728, 733, 737, 742, 743, 747, 748, 753, 755, 756, 757, 760, 763, 772, 777, 778, 780, 784, 785, 788, 790, 794, 799, 816, 818, 820, 823, 824, 828, 830, 832, 834, 835, 838, 839, 840, 848, 849, 850, 851, 854, 856, 859, 861, 865, 867, 869, 872, 875, 877, 878, 880, 888, 892, 894, 896, 897, 901, 904, 908, 912, 918, 919, 921, 927, 931, 933, 936, 937, 938, 939, 943, 946, 947, 948, 951, 954, 956, 959, 960, 961, 963, 973, 986, 988, 994
  • Brighton: 202, 206, 208, 254, 319, 403, 415, 560, 562, 586, 746, 779, 782, 783, 787, 789, 817, 870, 891, 903, 925, 987
  • Brookline: 232, 264, 274, 277, 278, 355, 383, 396, 432, 487, 505, 525, 566, 582, 608, 632, 651, 667, 677, 713, 730, 731, 732, 734, 735, 738, 739, 751, 754, 860, 879, 906, 935, 953, 975, 991, 992
  • Cambridge: 201, 216, 218, 225, 229, 230, 233, 234, 245, 250, 251, 252, 253, 256, 258, 280, 290, 299, 300, 301, 308, 324, 335, 339, 349, 354, 359, 374, 384, 386, 388, 395, 397, 401, 417, 430, 441, 444, 452, 453, 460, 465, 468, 475, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 503, 520, 528, 540, 547, 550, 551, 575, 576, 577, 583, 588, 599, 613, 621, 642, 647, 649, 661, 665, 674, 679, 682, 685, 693, 703, 710, 714, 715, 758, 761, 768, 798, 800, 802, 803, 806, 812, 821, 836, 844, 852, 858, 864, 866, 868, 871, 873, 876, 899, 902, 909, 914, 940, 945, 949, 955, 976, 995, 998, 999
  • Charlestown: 241, 242, 286, 337, 380, 398, 580, 669, 681, 712, 886, 952, 982
  • Chelsea: 270, 336, 370, 409, 461, 466, 660, 819, 884, 887, 889, 958
  • Dorchester: 265, 282, 287, 288, 297, 326, 379, 436, 446, 474, 506, 514, 533, 704, 707, 740, 822, 825, 905, 929, 979
  • East Boston: 271, 418, 455, 561, 567, 568, 569, 634, 716, 874, 895, 913, 970, 981, 997
  • Everett: 203, 294, 381, 382, 387, 389, 394, 410, 420, 544, 545, 601, 843, 917, 944
  • Hyde Park (includes Readville and parts of Milton): 214, 272, 276, 333, 360, 361, 362, 364, 408, 604, 675, 705, 833, 910, 990
  • Jamaica Plain (includes Roslindale and West Roxbury): 323, 325, 327, 344, 363, 390, 435, 469, 477, 522, 524, 553, 676, 942, 971, 983
  • Melrose: 957
  • Milton (includes Mattapan, see also Hyde Park): 273, 291, 296, 298, 313, 322, 433, 615, 690, 696, 698, 898, 907, 915, 922, 980
  • Newton: 213, 215, 219, 243, 244, 332, 340, 431, 454, 467, 473, 485, 527, 546, 552, 558, 559, 564, 581, 584, 597, 609, 610, 614, 618, 630, 631, 641, 644, 655, 656, 658, 659, 663, 678, 762, 775, 795, 796, 831, 853, 862, 881, 882, 885, 893, 916, 928, 964, 965, 969
  • Quincy: 221, 237, 249, 302, 317, 328, 347, 376, 405, 471, 472, 479, 481, 483, 509, 537, 639, 653, 657, 687, 689, 691, 706, 729, 745, 750, 769, 770, 773, 774, 786, 793, 801, 804, 829, 837, 842, 845, 847, 890, 934, 984, 985
  • Roxbury: 238, 318, 400, 427, 442, 445, 516, 541, 602, 606, 652, 708, 749, 792, 989
  • Saugus: 285
  • Somerville: 284, 440, 501, 591, 616, 623, 625, 627, 628, 629, 666, 684, 702, 718, 741, 764, 767, 776, 863, 941, 996
  • South Boston: 268, 269, 307, 315, 334, 463, 464, 596, 622, 701, 752, 765, 766
  • Watertown: 231, 321, 393, 402, 458, 600, 607, 612, 668, 673, 744, 923, 924, 926, 972
  • Winthrop: 207, 329, 539, 841, 846

(857)-NXX

  • Belmont: 373, 626,
  • Boston Central: 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

Main article: N11 code

See also

References

External links

  • NANPA Area Code Map of Massachusetts
North: 339/781
West: 339/781 Area codes 617/857 East: Atlantic Ocean
South: 339/781
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