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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-649 1 Allen TX ALLNTXSADS0  9533 SOUTHWESTERN BELL 552   2008-07-20   
972-649 2 Allen TX ADMSTX01DS0  7421 AT&T - LOCAL 552   2005-01-17   
972-649 3 Allen TX ALLNTXSADS0  9533 SOUTHWESTERN BELL 552   2008-07-20   
972-649 4 Allen TX RCSNTXHVBMD  516C AT&T CORP. 552   2014-08-20   
972-649 5 Allen TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-649 6 Allen TX ALLNTXSADS0  9533 SOUTHWESTERN BELL 552   2008-02-15   
972-649 7 Allen TX ALLNTXSADS0  9533 SOUTHWESTERN BELL 552   2008-02-15   
972-649 8 Allen TX DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2010-09-06   
972-649 9 Allen TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-650 A Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-651 A Rockwall TX FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
972-652 A Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-652 0 Irving TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-10-28   
972-652 1 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-652 2 Irving TX DLLSTXNODS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2009-10-06   
972-652 3 Irving TX DLLSTXNODS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2008-01-03   
972-652 4 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-652 5 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-652 6 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-652 7 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-652 8 Irving TX DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2010-08-09   
972-652 9 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 A Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 0 Irving TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2007-01-06   
972-653 1 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 2 Irving TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2007-01-06   
972-653 3 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 4 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 5 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 6 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 7 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 8 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 9 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-654 A Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
972-654 0 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2020-05-24   
972-654 1 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2020-05-24   
972-654 2 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2020-05-24   
972-654 3 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2020-05-24   
972-654 4 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2020-05-24   
972-654 5 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2020-05-24   
972-654 6 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2020-05-24   
972-654 7 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2020-05-24   
972-654 8 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2020-05-24   
972-654 9 Frisco TX CRTNTX35G03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2020-05-24   
972-655 A Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-655 0 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-655 1 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-655 2 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-655 3 Irving TX IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-655 4 Irving TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2007-01-06   

<< 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 >>

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.