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.

Dallas, 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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
469-619 3   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-01-28   
469-619 4   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-01-28   
469-619 5   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-01-28   
469-619 6   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-01-28   
469-619 7   004F BANDWIDTH.COM CLEC, LLC - TX 552   2009-03-07   
469-619 8   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2004-07-12   
469-619 9   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
469-620 A DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
469-620 0   004F BANDWIDTH.COM CLEC, LLC - TX 552   2014-11-22   
469-620 1   004F BANDWIDTH.COM CLEC, LLC - TX 552   2014-11-22   
469-620 2   793K TWC IP ENABLED SERVICES, LLC 552   2014-12-04   
469-620 3   793K TWC IP ENABLED SERVICES, LLC 552   2014-12-04   
469-620 4   829J PAETEC ITEL, LLC 552   2014-11-26   
469-620 5   829J PAETEC ITEL, LLC 552   2014-11-26   
469-620 6   793K TWC IP ENABLED SERVICES, LLC 552   2014-12-04   
469-620 7   903C ONVOY, LLC - TX 552   2014-12-10   
469-620 8   903C ONVOY, LLC - TX 552   2014-12-10   
469-620 9   5562 METROPCS, INC. 552   2014-12-16   
469-621 A DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
469-624 A DLLSTXRNDS1  9533 SOUTHWESTERN BELL 552      
469-627 A FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
469-627 0   5562 METROPCS, INC. 552   2019-07-18   
469-627 1   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2019-07-20   
469-627 2   5562 METROPCS, INC. 552   2019-07-18   
469-627 3   5562 METROPCS, INC. 552   2019-07-18   
469-627 4   508J CENTURYLINK COMMUNICATIONS, LLC 552   2019-07-06   
469-627 5   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2019-07-05   
469-627 6   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2019-07-05   
469-627 7   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2019-07-06   
469-627 8   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2019-07-06   
469-627 9   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552   2019-07-20   
469-638 A   903C ONVOY, LLC - TX 552      
469-638 0   004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-04-29   
469-638 1   624H ONVOY SPECTRUM, LLC 552   2022-09-09   
469-638 2   004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-04-29   
469-638 3   004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-04-29   
469-638 4   004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-04-29   
469-638 5   004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-04-29   
469-638 6   004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-04-29   
469-638 7   903C ONVOY, LLC - TX 552   2019-02-15   
469-638 8   903C ONVOY, LLC - TX 552   2019-02-15   
469-638 9   903C ONVOY, LLC - TX 552   2019-02-15   
469-646 A DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
469-646 0   177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2015-10-31   
469-646 1   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2015-10-31   
469-646 2   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2015-10-31   
469-646 3   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2015-10-31   
469-646 4   903C ONVOY, LLC - TX 552   2015-10-31   
469-646 5   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2015-10-31   
469-646 6   903C ONVOY, LLC - TX 552   2015-11-07   
469-646 7   903C ONVOY, LLC - TX 552   2015-11-07   
469-646 8   903C ONVOY, LLC - TX 552   2015-11-07   
469-646 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2015-10-30   
469-650 A DLLTTXID1MD  5562 METROPCS, INC. 552      
469-650 0   5562 METROPCS, INC. 552   2015-01-29   
469-650 1   5562 METROPCS, INC. 552   2015-01-29   
469-650 2   5562 METROPCS, INC. 552   2015-01-29   
469-650 3   5562 METROPCS, INC. 552   2015-01-29   
469-650 4   5562 METROPCS, INC. 552   2015-01-29   
469-650 5   5562 METROPCS, INC. 552   2015-01-29   
469-650 6   5562 METROPCS, INC. 552   2015-01-29   
469-650 7   5562 METROPCS, INC. 552   2015-01-29   
469-650 8   5562 METROPCS, INC. 552   2015-01-29   
469-650 9   5562 METROPCS, INC. 552   2015-01-29   
469-665 A DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
469-665 0   5562 METROPCS, INC. 552   2018-02-28   
469-665 1   9533 SOUTHWESTERN BELL 552      
469-665 2   9533 SOUTHWESTERN BELL 552      
469-665 3   9533 SOUTHWESTERN BELL 552      
469-665 4   9533 SOUTHWESTERN BELL 552      
469-665 5   9533 SOUTHWESTERN BELL 552      
469-665 6   9533 SOUTHWESTERN BELL 552      
469-665 7   9533 SOUTHWESTERN BELL 552      
469-665 8   004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-17   
469-665 9   004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-04-28   
469-676 A DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
469-676 0   004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-09-07   
469-676 1   004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-09-07   
469-676 2   004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-09-07   
469-676 3   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2019-10-04   
469-676 4   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2019-10-04   
469-676 5   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2019-10-04   
469-676 6   197D VONAGE AMERICA LLC 552   2019-10-05   
469-676 7   5562 METROPCS, INC. 552   2019-09-27   
469-676 8   004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-11-17   
469-676 9   004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-11-17   
469-677 A   793K TWC IP ENABLED SERVICES, LLC 552      
469-677 0   793K TWC IP ENABLED SERVICES, LLC 552   2016-05-28   
469-677 1   793K TWC IP ENABLED SERVICES, LLC 552   2016-05-28   
469-677 2   793K TWC IP ENABLED SERVICES, LLC 552   2016-05-28   
469-677 3   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2016-05-29   
469-677 4   5562 METROPCS, INC. 552   2017-02-13   
469-677 5   793K TWC IP ENABLED SERVICES, LLC 552   2016-06-23   
469-677 6   793K TWC IP ENABLED SERVICES, LLC 552   2016-06-23   
469-677 7   004F BANDWIDTH.COM CLEC, LLC - TX 552   2016-07-03   
469-677 8   004F BANDWIDTH.COM CLEC, LLC - TX 552   2016-07-03   
469-677 9   004F BANDWIDTH.COM CLEC, LLC - TX 552   2016-07-03   
469-680 A FTWQTXFH0MD  508J CENTURYLINK COMMUNICATIONS, LLC 552      
469-680 0   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2015-12-26   
469-680 1   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2015-11-08   

<< 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 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 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.