Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 337 [Rate centres in NPA 337] [Dial plan for NPA 337]

NXX: 403

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-403 A Hayes LA SCTTLA06G02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488      
337-403 0 Hayes LA LFYTLAMAX7Z  624H ONVOY SPECTRUM, LLC 488   2023-07-22   
337-403 1 Hayes LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488   2023-09-18   
337-403 2 Hayes LA LFYTLA3624Z  490J DISH WIRELESS, LLC 488   2023-12-12   
337-403 3 Hayes LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488   2021-02-19   
337-403 4 Hayes LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488   2019-08-31   
337-403 7 Hayes LA LFYTLAMAX5X  3232 LEVEL 3 COMMUNICATIONS, LLC - LA 488   2014-09-11   
337-403 9 Hayes LA SCTTLA06G02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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