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.

San Antonio, TX

<< 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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
210-996 A SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566      
210-996 0 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2014-09-15   
210-996 1 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2014-09-15   
210-996 2 SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566   2014-09-12   
210-996 3 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-04-28   
210-996 4 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2014-09-15   
210-996 5 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2014-09-15   
210-996 6 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2014-09-15   
210-996 7 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2014-09-15   
210-996 8 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2014-09-15   
210-996 9 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2014-09-15   
210-997 A SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
210-997 0 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-09-05   
210-997 1 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-09-05   
210-997 2 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-09-05   
210-997 3 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-09-05   
210-997 4 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-09-05   
210-997 5 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-09-05   
210-997 6 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-09-05   
210-997 7 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-09-05   
210-997 8 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-09-05   
210-997 9 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-09-05   
210-998 A SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
210-998 0 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2011-03-24   
210-998 1 SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2011-04-28   
210-998 2 SNANTXCA44Z  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 566   2011-04-11   
210-998 3 SNANTXCA44Z  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 566   2011-04-11   
210-998 4 SNANTXCA44Z  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 566   2011-04-20   
210-998 5 SNANTXEW0MD  829J PAETEC ITEL, LLC 566   2011-04-08   
210-998 6 SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2011-04-28   
210-998 7 SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2011-04-28   
210-998 8 SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2011-04-28   
210-998 9 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2011-01-20   
210-999 A SNANTXCADS2  9533 SOUTHWESTERN BELL 566      
210-999 0 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2006-10-06   
210-999 1 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2006-10-06   
210-999 2 SNANTXCADS2  9533 SOUTHWESTERN BELL 566      
210-999 3 SNANTXCADS2  9533 SOUTHWESTERN BELL 566      
210-999 4 SNANTXCADS2  9533 SOUTHWESTERN BELL 566      
210-999 5 SNANTXCA44Z  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 566   2005-12-15   
210-999 6 SNANTXCADS2  9533 SOUTHWESTERN BELL 566      
210-999 7 SNANTXCADS2  9533 SOUTHWESTERN BELL 566      
210-999 8 SNANTXCADS2  9533 SOUTHWESTERN BELL 566      
210-999 9 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2006-10-06   
726-200 A SNANTXCA84Z  965H FRACTEL, LLC 566      
726-200 0 SNANTXCA84Z  965H FRACTEL, LLC 566   2020-08-29   
726-200 1 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-08-31   
726-200 2 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-08-31   
726-200 3 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-08-31   
726-200 4 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-08-31   
726-200 5 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-08-31   
726-200 6 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-08-31   
726-200 7 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-08-31   
726-200 8 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-08-31   
726-200 9 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-08-31   
726-201 A SNANTXCA41Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
726-201 0 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-12-04   
726-201 1 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-12-04   
726-201 2 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-12-04   
726-201 3 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-12-04   
726-201 4 SNANTXDIX4X  197D VONAGE AMERICA LLC 566   2020-11-28   
726-201 5 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-12-04   
726-201 6 SNANTXCA41Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566   2020-11-27   
726-201 7 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-12-04   
726-201 8 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-12-04   
726-201 9 SNANTXCADS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 566   2020-11-28   
726-202 A SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566      
726-202 0 SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2021-05-24   
726-202 1 SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2021-05-24   
726-202 2 SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2021-05-24   
726-202 3 SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2021-05-24   
726-202 4 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2021-05-25   
726-202 5 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2021-05-25   
726-202 6 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2021-05-25   
726-202 7 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2021-05-25   
726-202 8 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2021-05-25   
726-202 9 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2021-05-25   
726-203 A SNANTX39TMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 566      
726-203 0 SNANTX39TMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 566   2021-05-15   
726-203 1 SNANTX39TMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 566   2021-05-15   
726-203 2 SNANTX39TMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 566   2021-05-15   
726-203 3 SNANTX91X7Y  5562 METROPCS, INC. 566   2022-01-30   
726-203 4 SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566   2022-01-22   
726-203 5 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2022-01-26   
726-203 6 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2022-01-26   
726-203 7 SNANTX91X7Y  5562 METROPCS, INC. 566   2022-01-30   
726-203 8 SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566   2022-01-01   
726-203 9 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2022-01-26   
726-204 A SNANTXCA92Z  475J CALLWORKS CORPORATION 566      
726-204 0 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2021-07-02   
726-204 1 SNANTXCA92Z  475J CALLWORKS CORPORATION 566   2021-06-21   
726-204 2 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2021-07-02   
726-204 3 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2021-07-02   
726-204 4 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2021-07-02   
726-204 5 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2021-07-02   
726-204 6 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2021-07-02   
726-204 7 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2021-07-02   
726-204 8 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2021-07-02   
726-204 9 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2021-07-02   
726-205 A SNANTX91X7Y  6529 T-MOBILE USA, INC. 566      

<< 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 >>

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.