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: 643

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
318-643 A Harrisonburg LA SHPTLAMAXZY  749E ONVOY, LLC - LA 486      
318-643 0 Harrisonburg LA   749E ONVOY, LLC - LA 486   2016-10-29   
318-643 1 Harrisonburg LA   749E ONVOY, LLC - LA 486   2016-06-16   
318-643 2 Harrisonburg LA   749E ONVOY, LLC - LA 486   2016-06-16   
318-643 3 Harrisonburg LA   749E ONVOY, LLC - LA 486   2016-10-29   
318-643 4 Harrisonburg LA   749E ONVOY, LLC - LA 486   2020-12-13   
318-643 5 Harrisonburg LA   749E ONVOY, LLC - LA 486   2020-12-13   
318-643 6 Harrisonburg LA   749E ONVOY, LLC - LA 486   2021-02-21   
318-643 7 Harrisonburg LA   749E ONVOY, LLC - LA 486   2021-02-21   
318-643 8 Harrisonburg LA   749E ONVOY, LLC - LA 486   2021-02-21   
318-643 9 Harrisonburg LA   749E ONVOY, LLC - LA 486   2021-02-21   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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