Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: WRCSMACEX1X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
508-373 A Worcester MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
508-471 A Worcester MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
508-499 A Oxford MA 3370 CTC COMMUNICATIONS CORP. - MA 128   2004-01-12   
508-506 A Oxford MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
774-221 A Auburn MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
774-354 A Leicester MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
774-495 A Webster MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
774-614 A Boylston MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
774-760 A Westboro MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
774-799 A Shrewsbury MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
774-808 A Millbury MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-586 A Bolton MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-598 A Clinton MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-602 A Fitchburg MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-652 A Templeton MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-668 A Westminster MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-672 A Princeton MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-678 A Sterling MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-696 A Fitchburg MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-728 A Leominster MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-870 A Leominster MA 3370 CTC COMMUNICATIONS CORP. - MA 128      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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