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: 941

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-941 A Somerville MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-941 0 Somerville MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-941 1 Somerville MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-941 2 Somerville MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-941 3 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-941 4 Somerville MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-941 5 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-941 6 Somerville MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-941 7 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-941 8 Somerville MA CMBRMABEQMD  321J HD CARRIER LLC 128      
617-941 9 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.