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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-428 4 Austin TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2007-09-05   
512-428 5 Austin TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2007-09-05   
512-428 6 Austin TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2007-09-05   
512-428 7 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-428 8 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2009-12-17   
512-428 9 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-429 A Rockdale TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-429 0 Rockdale TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-429 1 Rockdale TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-429 2 Rockdale TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-429 3 Rockdale TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-429 4 Rockdale TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-429 5 Rockdale TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-429 6 Rockdale TX AUSWTXGXBMD  5562 METROPCS, INC. 558   2016-10-28   
512-429 7 Rockdale TX SMRCTXXAKMD  508J CENTURYLINK COMMUNICATIONS, LLC 558   2014-04-09   
512-429 8 Rockdale TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-429 9 Rockdale TX AUSWTXGXBMD  5562 METROPCS, INC. 558   2016-07-01   
512-430 A Rockdale TX RCDLTXRDRS1  9533 SOUTHWESTERN BELL 558      
512-430 0 Rockdale TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2006-12-16   
512-430 1 Rockdale TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2008-09-22   
512-430 2 Rockdale TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2009-03-09   
512-430 3 Rockdale TX AUSWTXGXBMD  5562 METROPCS, INC. 558   2016-06-03   
512-430 4 Rockdale TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2003-04-05   
512-430 5 Rockdale TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2013-02-09   
512-430 6 Rockdale TX RCDLTXRDRS1  9533 SOUTHWESTERN BELL 558      
512-430 7 Rockdale TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2010-02-23   
512-430 8 Rockdale TX AUSWTXGXBMD  5562 METROPCS, INC. 558   2016-07-20   
512-430 9 Rockdale TX AUSTTX92X0X  139F WORLDCALL INTERCONNECT INC. 558   2008-12-13   
512-431 A Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-432 A Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-432 0 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-432 1 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-432 2 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-432 3 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-432 4 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-432 5 Austin TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2007-09-12   
512-432 6 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-432 7 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-432 8 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-432 9 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-433 A Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-433 0 Austin TX AUSWTXGXBMD  5562 METROPCS, INC. 558   2007-11-12   
512-433 1 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-433 2 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-433 3 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-433 4 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-433 5 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-433 6 Austin TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2006-08-23   
512-433 7 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-433 8 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-433 9 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-01-29   
512-434 A Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-434 0 Austin TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2012-09-16   
512-434 1 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-434 2 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-434 3 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2023-08-07   
512-434 4 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2023-08-07   
512-434 5 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-434 6 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2023-08-24   
512-434 7 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-434 8 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2023-08-07   
512-434 9 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-01-29   
512-435 A Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-435 0 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-435 1 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-02-07   
512-435 2 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-435 3 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-435 4 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-435 5 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-435 6 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-435 7 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-02-07   
512-435 8 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-435 9 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-01-21   
512-436 A Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-436 0 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2006-04-24   
512-436 1 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-436 2 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-436 3 Austin TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-03-21   
512-436 4 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-436 5 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-436 6 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-436 7 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-436 8 Austin TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2007-09-12   
512-436 9 Austin TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2006-04-24   
512-437 A Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-437 0 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-437 1 Austin TX AUSWTXGXBMD  5562 METROPCS, INC. 558   2007-11-12   
512-437 2 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-437 3 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-437 4 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-437 5 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-437 6 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-437 7 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-437 8 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-437 9 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-438 A Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-438 0 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-438 1 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-438 2 Austin TX AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-438 3 Austin TX AUSTTXHIDS0  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 >>

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.