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: 513 [Rate centres in NPA 513] [Dial plan for NPA 513]

NXX: 637

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
513-637 A Mason OH CNCNOHRE2MD  464C ONVOY, LLC - OH 922      
513-637 0 Mason OH CNCNOHRE5MD  073H TELNYX LLC 922   2023-01-10   
513-637 1 Mason OH CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2023-02-10   
513-637 2 Mason OH CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2023-02-10   
513-637 3 Mason OH CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2023-01-09   
513-637 4 Mason OH CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2023-01-09   
513-637 5 Mason OH CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2023-01-09   
513-637 6 Mason OH CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2023-01-09   
513-637 7 Mason OH CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2023-01-09   
513-637 8 Mason OH CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2023-02-10   
513-637 9 Mason OH CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2023-03-25   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.