Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

NXX: 355

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-355 A Lockhart TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558      
737-355 0 Lockhart TX   004F BANDWIDTH.COM CLEC, LLC - TX 558   2023-03-27   
737-355 1 Lockhart TX   004F BANDWIDTH.COM CLEC, LLC - TX 558   2023-03-27   
737-355 2 Lockhart TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2023-11-24   
737-355 3 Lockhart TX   903C ONVOY, LLC - TX 558   2024-04-12   
737-355 4 Lockhart TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2024-04-12   
737-355 5 Lockhart TX   903C ONVOY, LLC - TX 558   2025-05-10   
737-355 6 Lockhart TX   903C ONVOY, LLC - TX 558   2024-06-07   
737-355 7 Lockhart TX   903C ONVOY, LLC - TX 558   2024-07-15   
737-355 8 Lockhart TX   903C ONVOY, LLC - TX 558   2023-08-26   
737-355 9 Lockhart TX   903C ONVOY, LLC - TX 558   2024-03-08   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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