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: 256 [Rate centres in NPA 256] [Dial plan for NPA 256]

NXX: 877

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-877 A Sand Rock AL BRHMALHRGMD  965H FRACTEL, LLC 476      
256-877 0 Sand Rock AL BRHMALMT32Z  604E ONVOY, LLC - AL 476      
256-877 1 Sand Rock AL BRHMALHWX6X  318J COMCAST IP PHONE, LLC 476      
256-877 2 Sand Rock AL BRHMALHRHMD  516J TON80 COMMUNICATIONS, LLC 476      
256-877 5 Sand Rock AL BRHMALMT32Z  604E ONVOY, LLC - AL 476      
256-877 6 Sand Rock AL BRHMALMT32Z  604E ONVOY, LLC - AL 476      
256-877 7 Sand Rock AL BRHMALHRGMD  965H FRACTEL, LLC 476      
256-877 8 Sand Rock AL   624H ONVOY SPECTRUM, LLC 476      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.