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: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-606 1 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-12-05   
956-606 2 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-12-05   
956-606 3 Laredo TX   903C ONVOY, LLC - TX 566   2014-12-16   
956-606 4 Laredo TX   903C ONVOY, LLC - TX 566   2014-12-16   
956-606 5 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-12-04   
956-606 6 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-12-04   
956-606 7 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-12-04   
956-606 8 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-12-04   
956-606 9 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-12-04   
956-607 A Edinburg TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568      
956-608 A Laredo TX   4290 STPCS JOINT VENTURE, LLC DBA T-MOBILE USA 566      
956-608 0 Laredo TX   4290 STPCS JOINT VENTURE, LLC DBA T-MOBILE USA 566   2015-02-08   
956-608 1 Laredo TX   4290 STPCS JOINT VENTURE, LLC DBA T-MOBILE USA 566   2015-02-08   
956-608 2 Laredo TX   583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 566   2015-02-20   
956-608 3 Laredo TX   583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 566   2015-03-12   
956-608 4 Laredo TX   583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 566   2015-04-15   
956-608 5 Laredo TX   776A VTX COMMUNICATIONS, LLC - TX 566   2017-05-19   
956-608 6 Laredo TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566   2016-03-01   
956-608 7 Laredo TX   903C ONVOY, LLC - TX 566   2015-05-18   
956-608 8 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-05-14   
956-608 9 Laredo TX   4290 STPCS JOINT VENTURE, LLC DBA T-MOBILE USA 566   2015-02-08   
956-609 A Edinburg TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 568      
956-609 0 Edinburg TX   5562 METRO PCS, INC. 568   2017-04-12   
956-609 1 Edinburg TX   5562 METRO PCS, INC. 568   2018-03-23   
956-609 2 Edinburg TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2016-05-29   
956-609 3 Edinburg TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 568   2015-03-12   
956-609 4 Edinburg TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2016-01-16   
956-609 5 Edinburg TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2016-02-05   
956-609 6 Edinburg TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2016-11-06   
956-609 7 Edinburg TX   7575 CENTURYLINK COMMUNICATIONS LLC 568   2016-06-08   
956-609 8 Edinburg TX   583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568   2015-08-27   
956-609 9 Edinburg TX   583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568   2015-03-15   
956-610 A Harlingen TX HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-612 A Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
956-612 0 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-01-09   
956-612 1 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-01-09   
956-612 2 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-01-09   
956-612 3 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-01-09   
956-612 4 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-01-09   
956-612 5 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-01-09   
956-612 6 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-01-09   
956-612 7 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-01-09   
956-612 8 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-01-09   
956-612 9 Laredo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-01-09   
956-614 A Zapata TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 568      
956-614 0 Zapata TX   004F BANDWIDTH.COM CLEC, LLC - TX 568   2015-10-11   
956-614 1 Zapata TX   004F BANDWIDTH.COM CLEC, LLC - TX 568   2018-09-13   
956-614 3 Zapata TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 568   2017-12-19   
956-614 5 Zapata TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2018-10-28   
956-614 6 Zapata TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 568   2015-07-20   

<< 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 >>

Last updated: Sun, 31 May 2020 11:59:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.