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: 402

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-402 A Delta AL   829J PAETEC ITEL, LLC 476      
256-402 0 Delta AL   829J PAETEC ITEL, LLC 476      
256-402 1 Delta AL   829J PAETEC ITEL, LLC 476      
256-402 2 Delta AL   829J PAETEC ITEL, LLC 476      
256-402 3 Delta AL BRHMALMT32Z  604E ONVOY, LLC - AL 476      
256-402 4 Delta AL BRHMALMT32Z  604E ONVOY, LLC - AL 476      
256-402 5 Delta AL BRHMALMT32Z  604E ONVOY, LLC - AL 476      
256-402 6 Delta AL   829J PAETEC ITEL, LLC 476      
256-402 7 Delta AL BRHMAL16X8X  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 476      
256-402 8 Delta AL BRHMALMTY2X  073H TELNYX LLC 476      
256-402 9 Delta AL BRHMALMT32Z  604E ONVOY, LLC - AL 476      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.