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: 660

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
318-660 A Springhill LA SHPTLAMAXQY  653C TELEPORT COMMUNICATIONS AMERICA LA - LLC 486      
318-660 0 Springhill LA   145J TERRA NOVA TELECOM INC. 486   2026-01-04   
318-660 1 Springhill LA SHPTLAMAX6Y  3232 LEVEL 3 COMMUNICATIONS, LLC - LA 486   2020-05-18   
318-660 2 Springhill LA PLDNLAXA3MD  749E ONVOY, LLC - LA 486   2021-03-25   
318-660 3 Springhill LA PLDNLAXA3MD  749E ONVOY, LLC - LA 486   2020-01-10   
318-660 4 Springhill LA PLDNLAXA3MD  749E ONVOY, LLC - LA 486   2021-04-05   
318-660 5 Springhill LA PLDNLAXA3MD  749E ONVOY, LLC - LA 486   2021-04-05   
318-660 6 Springhill LA SHPTLAMAXQY  653C TELEPORT COMMUNICATIONS AMERICA LA - LLC 486   2015-03-16   

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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