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Operating Company Number (OCN): 3370
Carriers are telecom operating companies that own number blocks (NPA-NXX). A number showing this carrier does not guarantee the caller is that company — scam calls can spoof caller ID.
| State | NPA | NXX | Rate center | Open |
|---|---|---|---|---|
| MA | 413 | 206 | CHICOPEE | Prefix |
| MA | 413 | 216 | BECKET | Prefix |
| MA | 413 | 217 | WILLIAMSTN | Prefix |
| MA | 413 | 233 | SPRINGFLD | Prefix |
| MA | 413 | 248 | SHEFFIELD | Prefix |
| MA | 413 | 252 | BELCHERTN | Prefix |
| MA | 413 | 313 | HOLYOKE | Prefix |
| MA | 413 | 366 | WILBRAHAM | Prefix |
| MA | 413 | 384 | LONGMEADOW | Prefix |
| MA | 413 | 398 | NORTHADAMS | Prefix |
| MA | 413 | 437 | HOLYOKE | Prefix |
| MA | 413 | 486 | ELONGMEDOW | Prefix |
| MA | 413 | 495 | SPRINGFLD | Prefix |
| MA | 413 | 509 | WILBRAHAM | Prefix |
| MA | 413 | 551 | LENOX | Prefix |
| MA | 413 | 570 | NORTHAMPTN | Prefix |
| MA | 413 | 595 | HAMPDEN | Prefix |
| MA | 413 | 629 | PITTSFIELD | Prefix |
| MA | 413 | 645 | GREATBNGTN | Prefix |
| MA | 413 | 676 | TURNERSFLS | Prefix |
| MA | 413 | 693 | SPRINGFLD | Prefix |
| MA | 413 | 727 | NORTHAMPTN | Prefix |
| MA | 413 | 759 | ELONGMEDOW | Prefix |
| MA | 413 | 779 | EASTHAMPTN | Prefix |
| MA | 413 | 842 | DALTON | Prefix |
| MA | 413 | 875 | WESTFIELD | Prefix |
| MA | 413 | 888 | CHICOPEE | Prefix |
| MA | 413 | 935 | LONGMEADOW | Prefix |
| MA | 413 | 937 | LEE | Prefix |
| MA | 413 | 995 | LUDLOW | Prefix |
| MA | 413 | 998 | SOUTHWICK | Prefix |
| MA | 508 | 373 | WORCESTER | Prefix |
| MA | 508 | 471 | WORCESTER | Prefix |
| MA | 508 | 488 | MILFORD | Prefix |
| MA | 508 | 499 | OXFORD | Prefix |
| MA | 508 | 506 | OXFORD | Prefix |
| MA | 508 | 521 | BROCKTON | Prefix |
| MA | 508 | 568 | HYANNIS | Prefix |
| MA | 508 | 656 | FRAMINGHAM | Prefix |
| MA | 508 | 659 | BRIDGEWTR | Prefix |
| MA | 508 | 683 | MARLBORO | Prefix |
| MA | 508 | 970 | MARLBORO | Prefix |
| MA | 617 | 221 | QUINCY | Prefix |
| MA | 617 | 226 | BOSTON | Prefix |
| MA | 617 | 286 | CHARLESTN | Prefix |
| MA | 617 | 309 | BOSTON | Prefix |
| MA | 617 | 340 | NEWTON | Prefix |
| MA | 617 | 391 | BOSTON | Prefix |
| MA | 617 | 409 | CHELSEA | Prefix |
| MA | 617 | 410 | EVERETT | Prefix |
| MA | 617 | 844 | CAMBRIDGE | Prefix |
| MA | 617 | 903 | BRIGHTON | Prefix |
| MA | 774 | 203 | ATTLEBORO | Prefix |
| MA | 774 | 204 | FRAMINGHAM | Prefix |
| MA | 774 | 213 | MIDDLEBORO | Prefix |
| MA | 774 | 221 | AUBURN | Prefix |
| MA | 774 | 237 | HARWICH | Prefix |
| MA | 774 | 250 | EASTON | Prefix |
| MA | 774 | 352 | DENNIS | Prefix |
| MA | 774 | 354 | LEICESTER | Prefix |
| MA | 774 | 495 | WEBSTER | Prefix |
| MA | 774 | 521 | OSTERVILLE | Prefix |
| MA | 774 | 614 | BOYLSTON | Prefix |
| MA | 774 | 654 | REHOBOTH | Prefix |
| MA | 774 | 760 | WESTBORO | Prefix |
| MA | 774 | 799 | SHREWSBURY | Prefix |
| MA | 774 | 808 | MILLBURY | Prefix |
| MA | 781 | 244 | LYNN | Prefix |
| MA | 781 | 349 | NORWOOD | Prefix |
| MA | 781 | 352 | NORWOOD | Prefix |
| MA | 781 | 362 | BURLINGTON | Prefix |
| MA | 781 | 404 | WOBURN | Prefix |
| MA | 781 | 475 | MEDFORD | Prefix |
| MA | 781 | 514 | NEEDHAM | Prefix |
| MA | 781 | 521 | SAUGUS | Prefix |
| MA | 781 | 610 | ROCKLAND | Prefix |
| MA | 781 | 664 | BRAINTREE | Prefix |
| MA | 781 | 737 | CANTON | Prefix |
| MA | 781 | 801 | DEDHAM | Prefix |
| MA | 781 | 804 | HINGHAM | Prefix |
| MA | 781 | 810 | WALTHAM | Prefix |
| MA | 781 | 815 | RANDOLPH | Prefix |
| MA | 781 | 859 | ARLINGTON | Prefix |
| MA | 781 | 879 | LEXINGTON | Prefix |
| MA | 781 | 886 | STOUGHTON | Prefix |
| MA | 781 | 905 | MALDEN | Prefix |
| MA | 781 | 914 | WAKEFIELD | Prefix |
| MA | 781 | 974 | WEYMOUTH | Prefix |
| MA | 857 | 223 | BOSTON | Prefix |
| MA | 857 | 228 | WATERTOWN | Prefix |
| MA | 857 | 229 | NEWTON | Prefix |
| MA | 857 | 574 | EASTBOSTON | Prefix |
| MA | 978 | 203 | WILMINGTON | Prefix |
| MA | 978 | 212 | HUDSON | Prefix |
| MA | 978 | 225 | NEWBURYPT | Prefix |
| MA | 978 | 243 | MAYNARD | Prefix |
| MA | 978 | 289 | ANDOVER | Prefix |
| MA | 978 | 309 | ROCKPORT | Prefix |
| MA | 978 | 391 | AYER | Prefix |
| MA | 978 | 398 | LAWRENCE | Prefix |
| MA | 978 | 420 | HAVERHILL | Prefix |
| MA | 978 | 520 | WILMINGTON | Prefix |
| MA | 978 | 533 | ANDOVER | Prefix |
| MA | 978 | 569 | LOWELL | Prefix |
| MA | 978 | 584 | BILLERICA | Prefix |
| MA | 978 | 586 | BOLTON | Prefix |
| MA | 978 | 598 | CLINTON | Prefix |
| MA | 978 | 599 | SALEM | Prefix |
| MA | 978 | 602 | FITCHBURG | Prefix |
| MA | 978 | 620 | LAWRENCE | Prefix |
| MA | 978 | 624 | DANVERS | Prefix |
| MA | 978 | 652 | TEMPLETON | Prefix |
| MA | 978 | 668 | WESTMINSTR | Prefix |
| MA | 978 | 672 | PRINCETON | Prefix |
| MA | 978 | 678 | STERLING | Prefix |
| MA | 978 | 696 | FITCHBURG | Prefix |
| MA | 978 | 715 | BILLERICA | Prefix |
| MA | 978 | 727 | WESTFORD | Prefix |
| MA | 978 | 728 | LEOMINSTER | Prefix |
| MA | 978 | 783 | ANDOVER | Prefix |
| MA | 978 | 785 | LUNENBURG | Prefix |
| MA | 978 | 822 | SHIRLEY | Prefix |
| MA | 978 | 831 | CONCORD | Prefix |
| MA | 978 | 870 | LEOMINSTER | Prefix |
| MA | 978 | 879 | GLOUCESTER | Prefix |
| MA | 978 | 888 | LOWELL | Prefix |
| MA | 978 | 893 | ACTON | Prefix |
| MA | 978 | 898 | NO READING | Prefix |
| MA | 978 | 968 | PEABODY | Prefix |
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