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: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-237 3 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2018-12-03   
737-237 4 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2018-12-03   
737-237 5 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2018-04-06   
737-237 6 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2018-04-06   
737-237 7 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2018-04-06   
737-237 8 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2018-04-06   
737-237 9 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2018-04-06   
737-238 A Bertram TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558      
737-238 0 Bertram TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2018-08-19   
737-238 1 Bertram TX AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2018-08-20   
737-238 2 Bertram TX AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2018-12-19   
737-238 3 Bertram TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2019-05-30   
737-238 4 Bertram TX AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2019-09-14   
737-238 5 Bertram TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2019-07-12   
737-238 6 Bertram TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2018-12-21   
737-238 7 Bertram TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2018-12-21   
737-238 8 Bertram TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2018-12-21   
737-238 9 Bertram TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2018-12-21   
737-239 A Austin TX AUSTTXGR47Z  597F VOIP INNOVATIONS, LLC 558      
737-239 0 Austin TX AUSTTXGR47Z  597F VOIP INNOVATIONS, LLC 558   2018-09-28   
737-239 1 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2019-03-16   
737-239 2 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2018-10-16   
737-239 3 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2018-10-16   
737-239 4 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2018-10-16   
737-239 5 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2018-10-16   
737-239 6 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2018-10-16   
737-239 7 Austin TX SMRCTXXAKMD  508J CENTURYLINK COMMUNICATIONS, LLC 558   2018-10-03   
737-239 8 Austin TX AUSWTXOO2MD  829J PAETEC ITEL, LLC 558   2018-10-08   
737-239 9 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2019-03-16   
737-240 A Georgetown TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
737-240 0 Georgetown TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2016-11-25   
737-240 1 Georgetown TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2017-11-18   
737-240 2 Georgetown TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2017-10-12   
737-240 3 Georgetown TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2020-05-09   
737-240 4 Georgetown TX AUSTTXGRX3Y  073H TELNYX LLC 558   2017-03-22   
737-240 5 Georgetown TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2016-11-26   
737-240 6 Georgetown TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2016-11-26   
737-240 7 Georgetown TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2016-11-26   
737-240 8 Georgetown TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2016-11-26   
737-240 9 Georgetown TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2016-11-26   
737-241 A Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-241 0 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2017-10-15   
737-241 1 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2017-10-15   
737-241 2 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2017-10-15   
737-241 3 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2017-10-15   
737-241 4 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2017-10-15   
737-241 5 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2017-10-15   
737-241 6 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2017-10-15   
737-241 7 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2017-10-15   
737-241 8 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2017-10-16   
737-241 9 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2017-10-16   
737-242 A Austin TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558      
737-242 0 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2019-02-03   
737-242 1 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2021-11-01   
737-242 2 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2018-11-29   
737-242 3 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2018-11-17   
737-242 4 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2019-01-05   
737-242 5 Austin TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2019-01-05   
737-242 6 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2019-02-03   
737-242 7 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2019-03-16   
737-242 8 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2019-03-16   
737-242 9 Austin TX AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2019-03-16   
737-243 A Austin TX AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558      
737-243 0 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2018-12-10   
737-243 1 Austin TX AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2018-10-19   
737-243 2 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2018-12-10   
737-243 3 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2020-05-26   
737-243 4 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2020-05-26   
737-243 5 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2020-05-26   
737-243 6 Austin TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2018-11-19   
737-243 7 Austin TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2018-11-19   
737-243 8 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2019-10-17   
737-243 9 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2019-10-17   
737-244 A Taylor TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558      
737-244 0 Taylor TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2019-11-09   
737-244 1 Taylor TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2020-08-20   
737-244 2 Taylor TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2020-10-01   
737-244 3 Taylor TX AUSWTXGXBMD  5562 METROPCS, INC. 558   2021-06-01   
737-244 4 Taylor TX AUSTTXGR51Z  965H FRACTEL, LLC 558   2020-08-01   
737-244 5 Taylor TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2021-04-13   
737-244 6 Taylor TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-02-08   
737-244 7 Taylor TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-02-08   
737-244 8 Taylor TX AUSTTXGR42Z  073H TELNYX LLC 558   2021-03-12   
737-244 9 Taylor TX AUSTTXUH9MD  073H TELNYX LLC 558   2022-04-02   
737-245 A Georgetown TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-245 0 Georgetown TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2018-04-27   
737-245 1 Georgetown TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2018-06-09   
737-245 2 Georgetown TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2018-06-09   
737-245 3 Georgetown TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2020-07-21   
737-245 4 Georgetown TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2018-06-05   
737-245 5 Georgetown TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2018-04-28   
737-245 6 Georgetown TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2019-10-25   
737-245 7 Georgetown TX AUSTTXGR40Z  197D VONAGE AMERICA LLC 558   2018-12-07   
737-245 8 Georgetown TX AUSTTXGR40Z  197D VONAGE AMERICA LLC 558   2018-12-07   
737-245 9 Georgetown TX AUSTTXGR46Z  158H INVOXIO INCORPORATED 558   2018-07-29   
737-246 A Austin TX AUSTTXGR49Z  996H AIRESPRING, INC. 558      
737-246 0 Austin TX AUSTTXGR49Z  996H AIRESPRING, INC. 558   2018-11-11   
737-246 1 Austin TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2019-02-08   
737-246 2 Austin TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2019-02-08   
737-246 3 Austin TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2019-02-08   

<< 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 >>

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.