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.

NPA: 508 [Rate centres in NPA 508] [Dial plan for NPA 508]

NXX: 656

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-656 A Framingham MA FRMNMAUNX0X  3370 CTC COMMUNICATIONS CORP. - MA 128      
508-656 0 Framingham MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
508-656 1 Framingham MA FRMNMAUNX0X  3370 CTC COMMUNICATIONS CORP. - MA 128      
508-656 2 Framingham MA FRMNMAUNX0X  3370 CTC COMMUNICATIONS CORP. - MA 128      
508-656 3 Framingham MA   3370 CTC COMMUNICATIONS CORP. - MA 128      
508-656 4 Framingham MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
508-656 5 Framingham MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
508-656 6 Framingham MA FRMNMAUNX0X  3370 CTC COMMUNICATIONS CORP. - MA 128      
508-656 7 Framingham MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
508-656 8 Framingham MA CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128      
508-656 9 Framingham MA CMBSMA01GT3  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.