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: 318 [Rate centres in NPA 318] [Dial plan for NPA 318]

NXX: 946

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
318-946 A Shreveport LA SHPULA34G02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 486      
318-946 0 Shreveport LA SHPTLALY0MD  5562 METROPCS, INC. 486   2008-11-14   
318-946 1 Shreveport LA SHPTLALY0MD  5562 METROPCS, INC. 486   2008-11-14   
318-946 2 Shreveport LA SHPTLALY0MD  5562 METROPCS, INC. 486   2008-12-22   
318-946 3 Shreveport LA SHPULA34G02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 486   2007-08-21   
318-946 4 Shreveport LA SHPTLALY0MD  5562 METROPCS, INC. 486   2008-12-22   
318-946 5 Shreveport LA SHPTLALY0MD  5562 METROPCS, INC. 486   2008-12-22   
318-946 6 Shreveport LA SHPTLALY0MD  6664 SPRINT SPECTRUM, L.P. 486   2008-02-27   
318-946 7 Shreveport LA SHPTLALY0MD  5562 METROPCS, INC. 486   2008-12-22   
318-946 8 Shreveport LA SHPTLAMA11Z  318J COMCAST IP PHONE LLC 486   2008-04-13   
318-946 9 Shreveport LA SHPTLALY0MD  6664 SPRINT SPECTRUM, L.P. 486   2011-04-08   

Last updated: Fri, 13 May 2022 22:16:13 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.