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: 617 [Rate centres in NPA 617] [Dial plan for NPA 617]

NXX: 741

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-741 A Somerville MA BSTPMALLRMD  8345 GLOBAL CROSSING LOCAL SERVICES, INC. - MA 128      
617-741 0 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-741 1 Somerville MA BSTPMALLRMD  8345 GLOBAL CROSSING LOCAL SERVICES, INC. - MA 128      
617-741 2 Somerville MA CMBRMABEQMD  321J HD CARRIER LLC 128      
617-741 3 Somerville MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
617-741 4 Somerville MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-741 5 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-741 6 Somerville MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-741 7 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-741 8 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-741 9 Somerville 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.