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: 344

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-344 A Attalla AL BRHMALHWX8X  8271 TELEPORT COMMUNICATIONS AMERICA, LLC - AL 476      
256-344 0 Attalla AL BRHMAL16X8X  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 476      
256-344 1 Attalla AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476      
256-344 2 Attalla AL BRHMALHWXNX  318J COMCAST IP PHONE, LLC 476      
256-344 3 Attalla AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476      
256-344 4 Attalla AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476      
256-344 5 Attalla AL BRHMALMT88Z  516C AT&T CORP. 476      
256-344 6 Attalla AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476      
256-344 7 Attalla AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476      
256-344 8 Attalla AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476      
256-344 9 Attalla AL BRHMALHWX8X  8271 TELEPORT COMMUNICATIONS AMERICA, LLC - AL 476      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.