CATALOG OF EXCHANGES IN AREA CODE 617 (Eastern Massachusetts) First 3 digits are the exchange. The letter which may appear next can have the following values: C - Boston Central Exchanges M - Metropolitan Boston exchanges L - Exchanges that are local for the Lynn area (substitute your own here) The purpose of this list is to enable an auto-dialing terminal-emulation program to determine whether a "1" should be dialed first, and to warn the user if he is making a toll-call. 222 Attleboro 223 C Boston 224 Manomet 225 M Cambridge 226 Attleboro 227 C Boston 228 Nantucket 229 Burlington 231 L Saugus 232 M Brookline 233 L Saugus 234 Whitinsville 235 M Wellsley 236 C Boston 237 M Wellsley 238 Easton 239 M Wellsley 241 M Charlestown 242 M Charlestown 243 M Newton 244 M Newton 245 M Wakefield 246 M Wakefield 247 C Boston 248 Charlton 249 Athol 250 Chelmsford 251 North Chelmsford 252 rehoboth 253 M Cambridge 254 M Brighton 255 Orleans 256 Chelmsford 257 Siasconset 258 M Cambridge (CSDL) 259 M Lincoln 262 C Boston 263 Acton 264 Acton 265 M Dorchester 266 C Boston 267 C Boston 268 M South Boston 269 M South Boston 270 Burlington 271 M Bedford 272 Burlington 273 Burlington 274 M Bedford 275 M Bedford 276 M Bedford 277 M Brookline 278 Uxbridge 279 M Stoneham 281 Gloucester 282 M Dorchester 283 Gloucester 284 M Revere 285 Norton 286 M Revere 287 M Dorchester 288 M Dorchester 289 M Revere 291 Wareham 292 C Boston 293 Bryantville 294 Bryantville 295 Wareham 296 M Mattapan 297 Winchendon 298 M Mattapan 299 Naushon Island 321 M Malden 322 M Malden 323 M West Roxbury 324 M Malden 325 M West Roxbury 326 M Dedham 327 M West Roxbury 328 M Quincy 329 M Dedham 331 M Weymouth 332 M Newton 333 M Milton 334 L Lynnfield 335 M Weymouth 336 Seekonk 337 M Weymouth 338 C Boston 339 Mansfield 341 Stoughton 342 Fitchburg 343 Fitchburg 344 Stoughton 345 Fitchburg 346 Merrimac 347 Sturbridge 349 Wellfleet 350 C Boston 351 Northboro 352 Georgetown 353 C Boston 354 M Cambridge 355 Barre 356 Ipswich 357 C Boston 358 Wayland 359 Medfield 361 M Hyde Park 362 Barnstable 363 West Newbury 364 M Hyde Park 365 Clinton 366 Westboro 367 C Boston 368 Clinton 369 Concord 371 Concord 372 Haverhill 373 Haverhill 374 Haverhill 376 Millis 378 East Bridgewater 379 North Swansea 381 M Everett 383 M Cohasset 384 Wrentham 385 Dennis 386 Ashby 387 M Everett 388 Amesbury 389 M Everett 391 M Medford 392 M Dedham 393 Northboro 394 Dennis 395 M Medford 396 M Medford 398 Dennis 399 South Attleboro 421 C Boston 422 Sterling 423 C Boston 424 C Boston 425 Shirley 426 C Boston 427 M Roxbury 428 Osterville 429 Holliston 431 M Wellesley 432 Harwich 433 Pepperell 434 C Boston 435 Hopkinton 436 M Dorchester 437 C Boston 438 M Stoneham 439 C Boston 441 Lowell 442 M Roxbury 443 Sudbury 444 M Needham 445 M Roxbury 447 Whitman 448 Groton 449 M Needham 451 C Boston 452 Lowell 453 Lowell 454 Lowell 456 Harvard 458 Lowell 459 Lowell 460 Marlboro 461 M Dedham 462 Newburyport 463 M South Boston 464 Princeton 465 Newburyport 466 M Waltham 467 Marlboro 468 Hamilton 469 M Brookline (Roslindale) 470 Andover 471 M Quincy 472 M Quincy 473 Milford 475 Andover 476 East Douglas 477 Osterville 478 Milford 479 M Quincy 480 Marlboro 481 Marlboro 482 C Boston 483 M West Medford 484 M Belmont 485 Marlboro 486 Littleton 487 Provincetown 488 M West Medford 489 M Belmont 491 M Cambridge 492 M Cambridge 496 Maynard 497 M Cambridge 498 M Cambridge 499 M Cambridge 522 M Jamaica Plain 523 C Boston 524 M Jamaica Plain 525 Manchester 526 Manchester 527 M Newton 528 Franklin 529 Upton 531 L Peabody 532 L Peabody 533 Medway 534 Leominster 535 L Peabody 536 C Boston 537 Leominster 540 Falmouth 542 C Boston 543 Foxboro 544 Orange 545 Scituate 546 Rockport 547 M Cambridge 548 Falmouth 549 Foxboro 551 M Norwood 552 M Newton 559 Brockton 561 M East Boston 562 Hudson 563 Cataumet 564 Cataumet 566 M Brookline 567 M East Boston 568 Hudson 569 M East Boston 570 C Boston 571 C Boston 572 C Boston 574 C Boston 576 M Cambridge 577 M Cambridge 578 C Boston 579 C Boston 580 Brockton 581 L Nahant 582 Lunenburg 583 Brockton 584 Brockton 585 Kingston 586 Brockton 587 Brockton 588 Brockton 589 C Boston 592 L Lynn 593 L Lynn 594 L Lynn 595 L Lynn 596 L Lynn 597 Townsend 598 L Lynn 599 L Lynn 620 Framingham 623 M Somerville 625 M Somerville 626 Framingham 627 Edgartown 628 M Somerville 629 M Somerville 630 Gardner 631 L Marblehead 632 Gardner 633 M Waltham 636 Westport 637 C Boston 638 C Boston 639 L Marblehead 641 M Arlington 642 M Waltham 643 M Arlington 644 Assonet 645 Chilmark 646 M Arlington 647 M Waltham 648 M Arlington 651 Natick 653 Natick 654 C Boston 655 Natick 656 Lowell 657 Wilmington 658 Wilmington 659 Norwell 661 M Cambridge 662 M Melrose 663 Billerica 664 North Reading 665 M Melrose 666 M Somerville 667 Billerica 668 Walpole 669 Dighton 671 Billerica 672 Fall River 673 Fall River 674 Fall River 675 Fall River 676 Fall River 678 Fall River 679 Fall River 681 Lawrence 682 Lawrence 683 Lawrence 684 M Waltham 685 Lawrence 686 Lawrence 687 Lawrence 688 Lawrence 689 Lawrence 691 Lawrence 692 Westford 693 Vineyard Haven 695 North Attleboro 696 M Milton 697 Bridgewater 698 M Milton 699 North Attleboro 720 C Boston 721 M Winchester 722 C Boston 723 C Boston 724 Petersham 725 C Boston 726 C Boston 727 C Boston 729 M Winchester 731 M Brookline 732 M Brookline 734 M Brookline 735 M Brookline 737 C Boston 738 M Brookline 739 M Brookline 740 M Hingham 741 L Salem 742 C Boston 743 C Boston 744 L Salem 745 L Salem 746 Plymouth 747 Plymouth 748 Marion 749 M Hingham 752 Worcester 753 Worcester 754 Worcester 755 Worcester 756 Worcester 757 Worcester 758 Mattapoisett 759 Buzzards Bay 761 South Attleboro 762 M Norwood 763 Rochester 764 Southbridge 765 Southbridge 767 M Holbrook 768 Essex 769 M Norwood 770 M Quincy 771 Hyannis 772 Ayer 773 M Quincy 774 Danvers 775 Hyannis 776 M Somerville 777 Danvers 778 Hyannis 779 Bolton 781 C Boston 782 M Brighton 783 M Brighton 784 Sharon 785 Dover 786 M Quincy 787 M Brighton 788 North Framingham 789 M Brighton 791 Worcester 792 Worcester 793 Worcester 794 Lawrence 795 Worcester 796 Fort Devens 798 Worcester 799 Worcester 821 M Canton 822 Taunton 823 Taunton 824 Taunton 825 M Dorchester 826 Hanover 827 Ashburnham 828 M Canton 829 Holden 832 Auburn 834 Marshfield 835 West Boylston 837 Marshfield 838 Berlin 839 Grafton 841 Shrewsbury 842 Shrewsbury 843 M Braintree 845 Shrewsbury 846 M Winthrop 847 M Quincy 848 M Braintree 849 M Braintree 851 Tewksbury 852 Worcester 853 Worcester 855 M Belmont 856 Worcester 858 Tewksbury 860 M Lexington 861 M Lexington 862 M Lexington 863 M Lexington 864 M Cambridge 865 Millbury 866 Carver 867 North Brookfield 868 M Cambridge 869 Boylston 870 Westboro 871 Rockland 872 Framingham 874 Westminster 875 Framingham 876 M Cambridge 877 Framingham 878 Rockland 879 Framingham 880 Taunton 881 Ashland 882 Oakham 883 Blackstne 884 M Chelsea 885 Spencer 886 Rutland 887 Topsfield 888 Sagamore 889 M Chelsea 890 M Waltham 891 M Waltham 892 Leicester 893 M Waltham 894 M Waltham 895 M Waltham 896 Brewster 897 Maynard 899 M Waltham 921 Beverly 922 Beverly 923 M Watertown 924 M Watertown 925 M Hull 926 M Watertown 927 Beverly 928 Hubbardston 929 M Dorchester 931 C Boston 933 M Woburn 934 Duxbury 935 M Woburn 936 C Boston 937 Lowell 938 M Woburn 939 Templeton 942 M Reading 943 Webster 944 M Reading 945 Chatham 946 Middleboro 947 Middleboro 948 Rowley 949 Webster 955 C Boston 956 C Boston 957 Dracut 961 M Randolph 963 M Randolph 964 M Newton 965 M Newton 966 Bellingham 967 Lowell 968 Cataumet 969 M Newton 973 C Boston 986 M Randolph 987 Oxford 990 New Bedford 991 New Bedford 992 New Bedford 993 New Bedford 994 New Bedford 995 New Bedford 996 New Bedford 997 New Bedford 998 New Bedford 999 New Bedford orth Framingham 789 M Beading 945 Chatham 946 Middleboro 947 Middleboro 948 Rowley 949 Webster 955 C Boston 956 C Boston 957 Dracut 961 M Randolph 963 M Randolph 964 M Newton 965 M Newton 966 Bellingham 967 Lowell 968 Cataumet 969 M Newton 973