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: 446

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-446 A Dorchester MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-446 0 Dorchester MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-446 1 Dorchester MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-446 2 Dorchester MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-446 3 Dorchester MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-06-19   
617-446 4 Dorchester MA   515J IP HORIZON LLC 128   2013-09-01   
617-446 5 Dorchester MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2010-04-07   
617-446 6 Dorchester MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-446 7 Dorchester MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-17   
617-446 8 Dorchester MA SOVLMAABBMD  145J TERRA NOVA TELECOM INC. 128   2023-06-22   
617-446 9 Dorchester MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-17   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.