Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 318 [Rate centres in NPA 318] [Dial plan for NPA 318]

NXX: 599

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
318-599 A Calhoun LA SHPTLAMAX6Y  3232 LEVEL 3 COMMUNICATIONS, LLC - LA 486      
318-599 0 Calhoun LA   3232 LEVEL 3 COMMUNICATIONS, LLC - LA 486   2005-01-07   
318-599 1 Calhoun LA   153F BANDWIDTH.COM CLEC, LLC - LA 486   2012-05-31   
318-599 2 Calhoun LA   749E ONVOY, LLC - LA 486   2016-04-02   
318-599 3 Calhoun LA   516C AT&T CORP. 486   2013-02-16   
318-599 4 Calhoun LA   3232 LEVEL 3 COMMUNICATIONS, LLC - LA 486   2004-12-20   
318-599 5 Calhoun LA   318J COMCAST IP PHONE, LLC 486   2005-09-01   
318-599 6 Calhoun LA   749E ONVOY, LLC - LA 486   2016-04-02   
318-599 8 Calhoun LA   318J COMCAST IP PHONE, LLC 486   2006-09-11   
318-599 9 Calhoun LA   153F BANDWIDTH.COM CLEC, LLC - LA 486   2008-12-18   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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