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: 693

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-693 A Cambridge MA CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-693 0 Cambridge MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-17   
617-693 1 Cambridge MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-17   
617-693 4 Cambridge MA   892D ONVOY, LLC - MA 128   2024-02-22   
617-693 5 Cambridge MA   892D ONVOY, LLC - MA 128   2024-02-22   
617-693 6 Cambridge MA   892D ONVOY, LLC - MA 128   2024-02-22   
617-693 7 Cambridge MA   892D ONVOY, LLC - MA 128   2024-02-22   
617-693 8 Cambridge MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-693 9 Cambridge MA   892D ONVOY, LLC - MA 128   2024-02-22   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.