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

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
508-281 A Marlboro MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
508-298 A Franklin MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
508-474 A Holliston MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
508-488 A Milford MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
508-656 A Framingham MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
508-665 A Framingham MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
508-683 A Marlboro MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
508-772 A Foxboro MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
508-809 A North Attleboro MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
508-902 A Milford MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
508-907 A Natick MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
508-919 A Northboro MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
508-937 A Bellingham MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
508-970 A Marlboro MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
774-203 A Attleboro MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
774-204 A Framingham MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
774-290 A Natick MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
774-388 A Framingham MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
774-396 A Milford MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
774-463 A Marlboro MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-212 A Hudson MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-243 A Maynard MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-391 A Ayer MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-478 A Haverhill MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-648 A Maynard MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
978-755 A Townsend MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
978-757 A Ayer MA 4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
978-785 A Lunenburg MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-822 A Shirley MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-831 A Concord MA 3370 CTC COMMUNICATIONS CORP. - MA 128      
978-862 A Ayer MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-881 A Acton MA 4673 CHOICE ONE COMMUNICATIONS, INC. - MA 128      
978-893 A Acton MA 3370 CTC COMMUNICATIONS CORP. - MA 128      

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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