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: 251 [Rate centres in NPA 251] [Dial plan for NPA 251]

NXX: 643

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-643 A Mobile AL MOBLALSKDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 480      
251-643 0 Mobile AL MOBLALIHG02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2023-09-02   
251-643 1 Mobile AL MOBLALSKDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 480      
251-643 2 Mobile AL MOBMALZY0MD  6916 ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 480   2004-05-20   
251-643 3 Mobile AL MOBMALZY0MD  6916 ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 480   2004-06-08   
251-643 4 Mobile AL MOBMALZY0MD  6916 ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 480   2004-07-02   
251-643 5 Mobile AL MOBMALZY0MD  6916 ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 480   2004-07-30   
251-643 6 Mobile AL MOBMALZY0MD  6916 ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 480   2006-01-14   
251-643 7 Mobile AL MOBLALSKDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 480      
251-643 8 Mobile AL MOBMALZY0MD  6916 ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 480   2006-01-14   
251-643 9 Mobile AL MOBLALIHG02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2023-09-02   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.