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: 607

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-607 A Sulphur LA LFYTLAMAX5X  3232 LEVEL 3 COMMUNICATIONS, LLC - LA 488      
337-607 0 Sulphur LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488   2016-03-21   
337-607 1 Sulphur LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488   2016-03-21   
337-607 2 Sulphur LA LFYTLAMAX5X  3232 LEVEL 3 COMMUNICATIONS, LLC - LA 488   2016-03-17   
337-607 3 Sulphur LA LKCHLADTSMD  153F BANDWIDTH.COM CLEC, LLC - LA 488   2016-08-21   
337-607 4 Sulphur LA   749E ONVOY, LLC - LA 488   2021-02-19   
337-607 5 Sulphur LA SCTTLA06G02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488   2021-01-09   
337-607 6 Sulphur LA   749E ONVOY, LLC - LA 488   2021-02-19   
337-607 7 Sulphur LA SCTTLA06G02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488   2020-10-17   
337-607 8 Sulphur LA SCTTLA06G02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488   2016-03-08   
337-607 9 Sulphur LA SCTTLA06G02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488   2016-03-08   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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