Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 512 [Rate centres in NPA 512] [Dial plan for NPA 512]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-272 A Austin TX AUSTTXMADS0  9533 SOUTHWESTERN BELL 558      
512-273 A McDade TX MCDDTXXADS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-273 0 McDade TX MCDDTXXADS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-273 1 McDade TX MCDDTXXADS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-273 2 McDade TX MCDDTXXADS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-273 3 McDade TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2011-09-05   
512-273 4 McDade TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2013-02-20   
512-273 5 McDade TX AUSXTXZRPS1  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 558   2007-10-15   
512-273 6 McDade TX AUSXTXZRPS1  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 558   2010-11-06   
512-273 7 McDade TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2011-09-05   
512-273 8 McDade TX AUSTTX92X0X  139F WORLDCALL INTERCONNECT INC. 558   2008-09-12   
512-273 9 McDade TX MCDDTXXADS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-274 A Jarrell TX AUSXTXUBCM0  6630 USA MOBILITY WIRELESS, INC. 558      
512-275 A Austin TX AUSTTXGKDS0  8958 XO TEXAS, INC. 558      
512-275 0 Austin TX AUSTTXGKDS0  8958 XO TEXAS, INC. 558      
512-275 1 Austin TX AUSTTXGKDS0  8958 XO TEXAS, INC. 558   2003-04-29   
512-275 2 Austin TX AUSWTXSZDS1  7516 LEVEL 3 TELECOM OF TEXAS, LLC 558   2001-05-15   
512-275 3 Austin TX AUSTTXGKDS0  8958 XO TEXAS, INC. 558   2004-05-05   
512-275 4 Austin TX AUSTTXGKDS0  8958 XO TEXAS, INC. 558   2004-05-05   
512-275 5 Austin TX AUSWTXSZDS1  7516 LEVEL 3 TELECOM OF TEXAS, LLC 558   2001-05-15   
512-275 6 Austin TX AUSTTXGKDS0  8958 XO TEXAS, INC. 558   2004-05-05   
512-275 7 Austin TX AUSWTXSZDS1  7516 LEVEL 3 TELECOM OF TEXAS, LLC 558   2004-01-13   
512-275 8 Austin TX AUSWTXSZDS1  7516 LEVEL 3 TELECOM OF TEXAS, LLC 558   2001-05-15   
512-275 9 Austin TX AUSTTXGKDS0  8958 XO TEXAS, INC. 558      
512-276 A Austin TX AUSTTXWADS0  9533 SOUTHWESTERN BELL 558      
512-276 0 Austin TX AUSUTXZMAMD  6664 SPRINT SPECTRUM L.P. 558   2004-12-12   
512-276 1 Austin TX AUSTTXWADS0  9533 SOUTHWESTERN BELL 558      
512-276 2 Austin TX AUSXTXZRPS1  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 558   2007-09-12   
512-276 3 Austin TX AUSTTXWADS0  9533 SOUTHWESTERN BELL 558      
512-276 4 Austin TX AUSUTXZMAMD  6664 SPRINT SPECTRUM L.P. 558   2005-08-26   
512-276 5 Austin TX AUSTTXGRDS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2003-10-04   
512-276 6 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2006-09-01   
512-276 7 Austin TX AUSTTXWADS0  9533 SOUTHWESTERN BELL 558      
512-276 8 Austin TX AUSTTXGR00Z  4911 IONEX COMMUNICATIONS SOUTH, INC. - TX 558   2004-08-07   
512-276 9 Austin TX AUSTTXWADS0  9533 SOUTHWESTERN BELL 558      
512-277 A Bertram TX AUSTTXGR42Z  073H TELNYX LLC 558      
512-277 0 Bertram TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-277 1 Bertram TX AUSTTX92X0X  139F WORLDCALL INTERCONNECT INC. 558   2008-09-12   
512-277 2 Bertram TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2013-05-13   
512-277 3 Bertram TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2009-02-23   
512-277 4 Bertram TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-11-18   
512-277 5 Bertram TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2011-04-25   
512-277 6 Bertram TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2011-11-02   
512-277 7 Bertram TX AUSTTXGR42Z  073H TELNYX LLC 558   2017-03-22   
512-277 8 Bertram TX   508J CENTURYLINK COMMUNICATIONS LLC 558   2014-04-09   
512-277 9 Bertram TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2011-10-20   
512-278 A Austin TX AUSTTXMADS0  9533 SOUTHWESTERN BELL 558      
512-279 A Austin TX AUSWTXSZDS1  7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      
512-280 A Austin TX AUSTTXMCDS0  9533 SOUTHWESTERN BELL 558      
512-281 A Elgin EMS TX ELGNTXELDS0  9533 SOUTHWESTERN BELL 558      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 >>

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.