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: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

NXX: 662

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-662 A Blountville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-662 0 Blountville TN JHCYTNXCXAY  073H TELNYX LLC 956   2022-07-07   
423-662 1 Blountville TN JHCYTNXCX2Y  5562 METROPCS, INC. 956   2020-06-14   
423-662 2 Blountville TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2021-07-30   
423-662 3 Blountville TN JHCYTNXCX3X  7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 956   2009-02-15   
423-662 4 Blountville TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2021-07-30   
423-662 5 Blountville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-02-17   
423-662 6 Blountville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-10-23   
423-662 7 Blountville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2020-07-07   
423-662 8 Blountville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-02-17   
423-662 9 Blountville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2022-09-29   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.