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: 506

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
318-506 A Delta LA JCSNMSPSXBY  516C AT&T CORP. 482      
318-506 0 Delta LA JCSNMSPSX4Y  153F BANDWIDTH.COM CLEC, LLC - LA 482      
318-506 1 Delta LA JCSNMSCPXMZ  749E ONVOY, LLC - LA 482      
318-506 2 Delta LA JCSNMSCPXMZ  749E ONVOY, LLC - LA 482      
318-506 3 Delta LA JCSNMSPSX4Y  153F BANDWIDTH.COM CLEC, LLC - LA 482      
318-506 4 Delta LA JCSNMSPSX4Y  153F BANDWIDTH.COM CLEC, LLC - LA 482      
318-506 5 Delta LA JCSNMSPSXBY  516C AT&T CORP. 482      
318-506 6 Delta LA JCSNMSCPXMZ  749E ONVOY, LLC - LA 482      
318-506 7 Delta LA JCSNMSCP41Z  508J CENTURYLINK COMMUNICATIONS, LLC 482      
318-506 8 Delta LA JCSNMSPSXFY  073H TELNYX LLC 482      
318-506 9 Delta LA JCSNMSCPXMZ  749E ONVOY, LLC - LA 482      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.