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: 972 [Rate centres in NPA 972] [Dial plan for NPA 972]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-432 1 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-432 2 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-432 3 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-432 4 Dallas TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-11-07   
972-432 5 Dallas TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-11-07   
972-432 6 Dallas TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-11-07   
972-432 7 Dallas TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-11-07   
972-432 8 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-432 9 Dallas TX DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-433 A Prosper TX PRSPTXFIRS2  9533 SOUTHWESTERN BELL 552      
972-433 0 Prosper TX DLLSTX97X1X  073H TELNYX LLC 552   2017-06-22   
972-433 1 Prosper TX PRSPTXFIRS2  9533 SOUTHWESTERN BELL 552   2017-06-21   
972-433 2 Prosper TX DLLSTXRIY0X  425J CSC WIRELESS, LLC 552   2019-06-28   
972-433 3 Prosper TX DLLSTXRIY0X  425J CSC WIRELESS, LLC 552   2019-06-28   
972-433 4 Prosper TX DLLSTXRIY0X  425J CSC WIRELESS, LLC 552   2019-06-28   
972-433 5 Prosper TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-09-18   
972-433 6 Prosper TX DLLSTX97X1X  073H TELNYX LLC 552   2019-12-13   
972-433 7 Prosper TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-04-29   
972-433 8 Prosper TX   515J IP HORIZON LLC 552   2017-12-15   
972-433 9 Prosper TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2020-04-26   
972-434 A Lewisville EMS TX LWVLTXXAPS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-435 A Maypearl TX MYPRTXXADS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-435 0 Maypearl TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2012-05-15   
972-435 1 Maypearl TX MYPRTXXADS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-435 2 Maypearl TX MYPRTXXADS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-435 3 Maypearl TX MYPRTXXADS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-435 4 Maypearl TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2008-10-07   
972-435 5 Maypearl TX DLLATX37DMD  8489 GLOBAL CROSSING LOCAL SERVICES, INC. - TX 552   2010-10-18   
972-435 6 Maypearl TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2016-03-14   
972-435 7 Maypearl TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2009-03-07   
972-435 8 Maypearl TX MYPRTXXADS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-435 9 Maypearl TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-01-09   
972-436 A Lewisville TX LWVLTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-437 A Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-437 0 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-437 1 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-437 2 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-437 3 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-437 4 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-437 5 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-437 6 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-437 7 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-437 8 Dallas TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-11-07   
972-437 9 Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-438 A Irving TX IRNGTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-439 A McKinney TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-439 0 McKinney TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2006-08-15   
972-439 1 McKinney TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-04-02   
972-439 2 McKinney TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2006-05-19   
972-439 3 McKinney TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      

<< 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 >>

Last updated: Wed, 07 Feb 2024 04:12:25 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.