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NPA: 903 [Rate centres in NPA 903] [Dial plan for NPA 903]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-437 1 Brownsboro TX   612K CSC VOICE, LLC 552   2022-07-18   
903-437 2 Brownsboro TX ATHNTXXATMD  903C ONVOY, LLC - TX 552   2021-02-03   
903-437 3 Brownsboro TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2014-05-16   
903-437 4 Brownsboro TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2017-10-19   
903-437 5 Brownsboro TX ATHNTXXATMD  903C ONVOY, LLC - TX 552   2018-09-16   
903-437 6 Brownsboro TX ATHNTXXATMD  903C ONVOY, LLC - TX 552   2021-02-03   
903-437 7 Brownsboro TX ATHNTXXATMD  903C ONVOY, LLC - TX 552   2020-08-21   
903-437 8 Brownsboro TX ATHNTXXATMD  903C ONVOY, LLC - TX 552   2020-08-21   
903-437 9 Brownsboro TX ATHNTXXATMD  903C ONVOY, LLC - TX 552   2020-08-21   
903-438 A Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-438 0 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-438 1 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-438 2 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-438 3 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-438 4 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-438 5 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-438 6 Sulphur Springs TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552      
903-438 7 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-438 8 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-438 9 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-439 A Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-439 0 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-439 1 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-439 2 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-439 3 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-439 4 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-439 5 Sulphur Springs TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
903-439 6 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-439 7 Sulphur Springs TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
903-439 8 Sulphur Springs TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
903-439 9 Sulphur Springs TX SLSPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
903-440 A Sulphur Springs TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552      
903-441 A Greenville TX GNVLTXGLDS0  9533 SOUTHWESTERN BELL 552      
903-441 0 Greenville TX GNVLTXGLDS0  9533 SOUTHWESTERN BELL 552      
903-441 1 Greenville TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2007-05-26   
903-441 2 Greenville TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2007-06-14   
903-441 3 Greenville TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2007-07-28   
903-441 4 Greenville TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2007-09-20   
903-441 5 Greenville TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2007-12-21   
903-441 6 Greenville TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2008-04-20   
903-441 7 Greenville TX DLLTTXID1MD  5562 METROPCS, INC. 552   2009-04-02   
903-441 8 Greenville TX   6529 T-MOBILE USA, INC. 552   2012-02-23   
903-441 9 Greenville TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2022-02-28   
903-442 A Sherman TX DLLSTXBKDS1  7715 MATRIX TELECOM, LLC. S/I/I TNCI - TX 552      
903-443 A Ladonia TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
903-443 0 Ladonia TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
903-443 1 Ladonia TX DLLSTX97X1X  073H TELNYX LLC 552   2019-05-17   
903-443 4 Ladonia TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2010-11-08   
903-443 5 Ladonia TX   515J IP HORIZON LLC 552   2017-12-15   
903-443 6 Ladonia TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2011-09-18   

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Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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