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: 506

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-506 A Oxford MA WRCSMACEX1X  3370 CTC COMMUNICATIONS CORP. - MA 128      
508-506 0 Oxford MA WRCSMACEX1X  3370 CTC COMMUNICATIONS CORP. - MA 128      
508-506 1 Oxford MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
508-506 2 Oxford MA BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
508-506 3 Oxford MA CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
508-506 4 Oxford MA   515J IP HORIZON LLC 128      
508-506 5 Oxford MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
508-506 6 Oxford MA WRCSMA02DS1  7135 TC SYSTEMS, INC. 128      
508-506 7 Oxford MA BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128      
508-506 8 Oxford MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
508-506 9 Oxford MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.