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: 770

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-770 A Lafayette LA LFYTLA364MD  939H COMMIO, LLC 488      
337-770 0 Lafayette LA   939H COMMIO, LLC 488   2022-06-19   
337-770 1 Lafayette LA   624H ONVOY SPECTRUM, LLC 488   2022-11-08   
337-770 2 Lafayette LA   749E ONVOY, LLC - LA 488   2025-01-09   
337-770 3 Lafayette LA   749E ONVOY, LLC - LA 488   2025-01-09   
337-770 4 Lafayette LA   653C TELEPORT COMMUNICATIONS AMERICA LA - LLC 488   2025-06-03   
337-770 5 Lafayette LA   321J HD CARRIER LLC 488   2025-08-15   
337-770 6 Lafayette LA   624H ONVOY SPECTRUM, LLC 488   2022-08-12   
337-770 7 Lafayette LA   624H ONVOY SPECTRUM, LLC 488   2022-08-12   
337-770 8 Lafayette LA   624H ONVOY SPECTRUM, LLC 488   2022-08-12   
337-770 9 Lafayette LA   624H ONVOY SPECTRUM, LLC 488   2022-08-12   

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

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