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: 631

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-631 A Mobile AL MOBLALAPDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 480      
251-631 0 Mobile AL MOBLALIHG02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2023-09-02   
251-631 1 Mobile AL MOBLALAPDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 480      
251-631 2 Mobile AL MOBLALAPDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 480      
251-631 3 Mobile AL MOBLALAPDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 480      
251-631 4 Mobile AL MOBLALAPDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 480      
251-631 5 Mobile AL MOBLALAPDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 480      
251-631 6 Mobile AL MOBLALAPDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 480      
251-631 7 Mobile AL MOBLALAPDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 480      
251-631 8 Mobile AL MOBLALAPDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 480      
251-631 9 Mobile AL MOBLALAPDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 480      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.