Local Calling Guide

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

NXX: 748

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-748 A Washington LA LFYTLAMAXIZ  516J TON80 COMMUNICATIONS, LLC 488      
337-748 0 Washington LA LFYTLAMAX7Z  624H ONVOY SPECTRUM, LLC 488   2023-07-29   
337-748 1 Washington LA LFYTLAMAXVY  5562 METROPCS, INC. 488   2022-05-01   
337-748 3 Washington LA LFYTLAMAXIZ  516J TON80 COMMUNICATIONS, LLC 488   2022-04-30   
337-748 7 Washington LA LFYTLAMAXVY  150C VOICESTREAM GSM I, LLC 488   2024-08-15   
337-748 8 Washington LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488   2023-09-18   
337-748 9 Washington LA   515J IP HORIZON LLC 488   2024-04-29   

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

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