Local Calling Guide

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Smithers Lake EMS, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
281-343 A SMLKTXSMDS0  9533 SOUTHWESTERN BELL 560      
281-343 0 SMLKTXSMDS0  9533 SOUTHWESTERN BELL 560      
281-343 1 SMLKTXSMDS0  9533 SOUTHWESTERN BELL 560      
281-343 2 SMLKTXSMDS0  9533 SOUTHWESTERN BELL 560      
281-343 3 HSTNTXJAX3Y  073H TELNYX LLC 560   2017-06-19   
281-343 4 HSTNTX279MD  7399 WESTEL, INC. - TX 560   2009-07-12   
281-343 5 SMLKTXSMDS0  9533 SOUTHWESTERN BELL 560      
281-343 6 SMLKTXSMDS0  9533 SOUTHWESTERN BELL 560      
281-343 7 SMLKTXSMDS0  9533 SOUTHWESTERN BELL 560      
281-343 8 SMLKTXSMDS0  9533 SOUTHWESTERN BELL 560      
281-343 9 SMLKTXSMDS0  9533 SOUTHWESTERN BELL 560      
281-937 A SMLKTXSMDS0  9533 SOUTHWESTERN BELL 560      
281-937 0 SMLKTXSMDS0  9533 SOUTHWESTERN BELL 560      
281-937 1 SMLKTXSMDS0  9533 SOUTHWESTERN BELL 560      
281-937 2 HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-10-29   
281-937 3 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2011-07-29   
281-937 4 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2011-02-24   
281-937 5   515J IP HORIZON LLC 560   2025-03-03   
281-937 6   515J IP HORIZON LLC 560   2025-03-03   
281-937 7 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2007-02-16   
281-937 8 HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2013-04-26   
281-937 9 SMLKTXSMDS0  9533 SOUTHWESTERN BELL 560      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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