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: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-203 A Everett MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-203 0 Everett MA   145J TERRA NOVA TELECOM INC. 128      
617-203 1 Everett MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-203 2 Everett MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-203 3 Everett MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      
617-203 4 Everett MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-203 5 Everett MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
617-203 6 Everett MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-203 7 Everett MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-203 8 Everett MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
617-203 9 Everett MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.