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: FRMNMAUNX0X

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
978-757 A Ayer MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
978-757 6 Ayer MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
978-784 5 Ayer MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-785 A Lunenburg MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-785 1 Lunenburg MA 3370 CTC COMMUNICATIONS CORP. - MA 128   2005-05-13   
978-822 A Shirley MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-831 A Concord MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-831 1 Concord MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-831 5 Concord MA 3370 CTC COMMUNICATIONS CORP. - MA 128   2010-07-07   
978-862 A Ayer MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-862 0 Ayer MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-862 1 Ayer MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-862 2 Ayer MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-862 3 Ayer MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-862 9 Ayer MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-875 6 Hudson MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128   2006-07-22   
978-881 A Acton MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-881 0 Acton MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-881 1 Acton MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-881 2 Acton MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-881 3 Acton MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-881 9 Acton MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-893 A Acton MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-893 1 Acton MA 3370 CTC COMMUNICATIONS CORP. - MA 128      

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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