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: 387

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-387 A Welsh LA LFYTLAMAXVY  150C VOICESTREAM GSM I, LLC 488      
337-387 0 Welsh LA LFYTLAMAXVY  150C VOICESTREAM GSM I, LLC 488   2022-01-25   
337-387 1 Welsh LA   792K CHARTER IP ENABLED SERVICES, LLC 488   2025-03-09   
337-387 2 Welsh LA LFYTLAMAXVY  150C VOICESTREAM GSM I, LLC 488   2022-01-25   
337-387 3 Welsh LA LFYTLAMAXVY  150C VOICESTREAM GSM I, LLC 488   2022-01-25   
337-387 4 Welsh LA LFYTLAMAXVY  150C VOICESTREAM GSM I, LLC 488   2022-01-25   
337-387 6 Welsh LA LKCHLADTXDX  5562 METROPCS, INC. 488   2021-11-11   
337-387 7 Welsh LA LFYTLAMAXUY  508J CENTURYLINK COMMUNICATIONS, LLC 488   2014-08-12   
337-387 9 Welsh LA LFYTLAMAXVY  150C VOICESTREAM GSM I, LLC 488      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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