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Austin, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
512-537 0   004F BANDWIDTH.COM CLEC, LLC - TX 558   2009-01-23   
512-537 1   004F BANDWIDTH.COM CLEC, LLC - TX 558   2009-03-07   
512-537 2   004F BANDWIDTH.COM CLEC, LLC - TX 558   2009-03-07   
512-537 3   004F BANDWIDTH.COM CLEC, LLC - TX 558   2009-03-07   
512-537 4   004F BANDWIDTH.COM CLEC, LLC - TX 558   2009-03-07   
512-537 5   004F BANDWIDTH.COM CLEC, LLC - TX 558   2009-03-07   
512-537 6   004F BANDWIDTH.COM CLEC, LLC - TX 558   2009-03-07   
512-537 7   004F BANDWIDTH.COM CLEC, LLC - TX 558   2009-03-07   
512-537 8   004F BANDWIDTH.COM CLEC, LLC - TX 558   2009-03-07   
512-537 9   004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-03-21   
512-538 A AUSUTXYYPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-538 0   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-538 1   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-538 2   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-538 3   5562 METROPCS, INC. 558   2005-01-09   
512-538 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2005-11-11   
512-538 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2005-11-11   
512-538 6   5562 METROPCS, INC. 558   2005-01-09   
512-538 7   5562 METROPCS, INC. 558   2005-01-09   
512-538 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2005-11-11   
512-538 9   5562 METROPCS, INC. 558   2005-01-09   
512-539 A AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-539 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2008-02-12   
512-539 1   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2008-01-19   
512-539 2   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2008-01-19   
512-539 3   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2008-01-19   
512-539 4   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2008-01-19   
512-539 5   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2008-01-19   
512-539 6   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2007-12-30   
512-539 7   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2007-12-13   
512-539 8   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2007-12-13   
512-539 9   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2007-12-13   
512-541 A AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-541 0   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2008-09-20   
512-541 1   903C ONVOY, LLC - TX 558   2008-09-08   
512-541 2   903C ONVOY, LLC - TX 558   2008-09-08   
512-541 3   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2008-07-14   
512-541 4   903C ONVOY, LLC - TX 558   2008-09-08   
512-541 5   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2008-06-01   
512-541 6   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2008-07-05   
512-541 7   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2008-07-15   
512-541 8   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2008-06-20   
512-541 9   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2008-06-01   
512-542 A AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-542 0   9533 SOUTHWESTERN BELL 558      
512-542 1   5562 METROPCS, INC. 558   2007-08-02   
512-542 2   9533 SOUTHWESTERN BELL 558      
512-542 3   9533 SOUTHWESTERN BELL 558      
512-542 4   6529 T-MOBILE USA, INC. 558   2007-08-02   
512-542 5   9533 SOUTHWESTERN BELL 558      
512-542 6   9533 SOUTHWESTERN BELL 558      
512-542 7   9533 SOUTHWESTERN BELL 558      
512-542 8   9533 SOUTHWESTERN BELL 558      
512-542 9   9533 SOUTHWESTERN BELL 558      
512-544 A AUSTTXUHAMD  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558      
512-544 0   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2005-04-25   
512-544 1   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2005-04-25   
512-544 2   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2005-04-25   
512-544 3   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2005-04-25   
512-544 4   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2005-04-25   
512-544 5   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2005-04-25   
512-544 6   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2005-04-25   
512-544 7   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2005-04-25   
512-544 8   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2005-04-25   
512-544 9   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2005-04-25   
512-547 A AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-547 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2009-03-29   
512-547 1   903C ONVOY, LLC - TX 558   2009-02-10   
512-547 2   903C ONVOY, LLC - TX 558   2009-02-10   
512-547 3   903C ONVOY, LLC - TX 558   2009-02-10   
512-547 4   903C ONVOY, LLC - TX 558   2009-02-10   
512-547 5   903C ONVOY, LLC - TX 558   2009-02-10   
512-547 6   903C ONVOY, LLC - TX 558   2009-02-10   
512-547 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2009-03-29   
512-547 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2009-03-29   
512-547 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2008-11-22   
512-550 A AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-550 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-12-12   
512-550 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-12-12   
512-550 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-10-03   
512-550 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-10-03   
512-550 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-10-03   
512-550 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-10-03   
512-550 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-09-11   
512-550 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-09-11   
512-550 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-09-11   
512-550 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-09-11   
512-551 A   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558      
512-551 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2009-07-03   
512-551 1   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2009-07-03   
512-551 2   516C AT&T CORP. 558   2009-11-13   
512-551 3   516C AT&T CORP. 558   2009-04-24   
512-551 4   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2008-12-27   
512-551 5   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2009-04-16   
512-551 6   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2009-04-16   
512-551 7   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2009-04-16   
512-551 8   516C AT&T CORP. 558   2009-07-03   
512-551 9   516C AT&T CORP. 558   2009-07-03   
512-552 A AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-552 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   

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

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