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Houston, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
281-418 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
281-433 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-434 A HSTNTXMOIMD  9748 AMERICAN MESSAGING SERVICES, LLC 560      
281-435 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-439 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
281-450 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-451 A HSTDTXBGBMD  5562 METROPCS, INC. 560      
281-451 0   5562 METROPCS, INC. 560      
281-451 1   5562 METROPCS, INC. 560      
281-451 2   5562 METROPCS, INC. 560      
281-451 3   5562 METROPCS, INC. 560      
281-451 4   5562 METROPCS, INC. 560      
281-451 5   5562 METROPCS, INC. 560      
281-451 6   5562 METROPCS, INC. 560      
281-451 7   5562 METROPCS, INC. 560      
281-451 8   5562 METROPCS, INC. 560      
281-451 9   6701 AERIAL COMMUNICATIONS, INC. 560      
281-455 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-460 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-467 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-468 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-472 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
281-501 A HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
281-501 0   318J COMCAST IP PHONE, LLC 560   2007-02-14   
281-501 1   318J COMCAST IP PHONE, LLC 560   2007-02-14   
281-501 2   318J COMCAST IP PHONE, LLC 560   2007-02-14   
281-501 3   318J COMCAST IP PHONE, LLC 560   2007-02-14   
281-501 4   7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2007-07-31   
281-501 5   7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2007-07-31   
281-501 6   903C ONVOY, LLC - TX 560   2007-08-10   
281-501 7   903C ONVOY, LLC - TX 560   2007-08-10   
281-501 8   318J COMCAST IP PHONE, LLC 560   2007-10-15   
281-501 9   318J COMCAST IP PHONE, LLC 560   2007-08-26   
281-507 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-510 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
281-513 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-520 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-520 0   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2006-05-19   
281-520 1   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2006-05-19   
281-520 2   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2006-05-19   
281-520 3   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2006-07-22   
281-520 4   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2006-07-22   
281-520 5   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2006-08-30   
281-520 6   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2006-08-30   
281-520 7   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2006-08-30   
281-520 8   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2006-08-30   
281-520 9   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2006-08-30   
281-527 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
281-536 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-543 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-546 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-567 A HSTNTXMOIMD  9748 AMERICAN MESSAGING SERVICES, LLC 560      
281-604 A HSTNTXCLDS0  9533 SOUTHWESTERN BELL 560      
281-605 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-605 0   6701 AERIAL COMMUNICATIONS, INC. 560   2007-07-01   
281-605 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2006-09-22   
281-605 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2006-09-19   
281-605 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2006-09-19   
281-605 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2006-09-19   
281-605 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2006-09-22   
281-605 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2006-09-22   
281-605 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2006-09-22   
281-605 8   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2006-09-17   
281-605 9   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2006-09-17   
281-610 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-613 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
281-615 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-620 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-621 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
281-627 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-629 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
281-630 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-635 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-635 0   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-635 1   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-635 2   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-635 3   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-635 4   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-635 5   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-635 6   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-635 7   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-635 8   6701 AERIAL COMMUNICATIONS, INC. 560   2003-06-03   
281-635 9   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-636 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-652 A HSTNTXMCDS0  9533 SOUTHWESTERN BELL 560      
281-652 0   9533 SOUTHWESTERN BELL 560      
281-652 1   9533 SOUTHWESTERN BELL 560      
281-652 2   9533 SOUTHWESTERN BELL 560      
281-652 3   9533 SOUTHWESTERN BELL 560      
281-652 4   9533 SOUTHWESTERN BELL 560      
281-652 5   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2002-12-15   
281-652 6   6701 AERIAL COMMUNICATIONS, INC. 560   2003-06-03   
281-652 7   6701 AERIAL COMMUNICATIONS, INC. 560   2005-10-08   
281-652 8   903C ONVOY, LLC - TX 560   2009-02-11   
281-652 9   9533 SOUTHWESTERN BELL 560      
281-657 A HSTWTXUFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560      
281-657 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560      
281-657 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560      
281-657 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560      
281-657 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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