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 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 99 100 101 102 103 104 105 106 107 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
214-954 1 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-954 2 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-954 3 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-954 4 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-954 5 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-954 6 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-954 7 DLLSTXRIXIY  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 552   2008-03-31   
214-954 8 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-954 9 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-956 A DLLSTXFLDS0  9533 SOUTHWESTERN BELL 552      
214-962 A DLLSTXMEDS0  9533 SOUTHWESTERN BELL 552      
214-962 0 DLLTTX01DMD  5562 METROPCS, INC. 552   2006-07-20   
214-962 1 DLLSTXMEDS0  9533 SOUTHWESTERN BELL 552      
214-962 2 DLLSTXMEDS0  9533 SOUTHWESTERN BELL 552      
214-962 3 DLLSTXMEDS0  9533 SOUTHWESTERN BELL 552      
214-962 4 DLLTTX01DMD  5562 METROPCS, INC. 552   2006-12-07   
214-962 5 DLLSTXMEDS0  9533 SOUTHWESTERN BELL 552      
214-962 6 DLLTTX01DMD  5562 METROPCS, INC. 552   2006-12-07   
214-962 7 DLLTTX01DMD  5562 METROPCS, INC. 552   2007-03-01   
214-962 8 DLLTTX01DMD  5562 METROPCS, INC. 552   2007-03-01   
214-962 9 DLLTTX01DMD  5562 METROPCS, INC. 552   2007-03-01   
214-964 A DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-964 0 DLLSTXRIXIY  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 552   2015-06-24   
214-964 1 DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-964 2 DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-964 3 DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-964 4 DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-964 5 DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-964 6 DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-964 7 DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-964 8 DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-964 9 DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-965 A DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-969 A DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-977 A DLLSTXRIDS4  9533 SOUTHWESTERN BELL 552      
214-978 A DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-978 0 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-978 1 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-978 2 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-978 3 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-978 4 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-978 5 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-978 6 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-978 7 DLLTTX01DMD  5562 METROPCS, INC. 552   2007-05-04   
214-978 8 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-978 9 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-979 A DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-981 A DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-981 0 DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-981 1 DLLSTXTAXTZ  624H ONVOY SPECTRUM, LLC 552   2022-01-14   

<< 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 99 100 101 102 103 104 105 106 107 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.