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
214-900 5   5562 METROPCS, INC. 552   2011-01-17   
214-900 6   5562 METROPCS, INC. 552   2011-01-17   
214-900 7   5562 METROPCS, INC. 552   2011-01-17   
214-900 8   5562 METROPCS, INC. 552   2011-01-17   
214-900 9   5562 METROPCS, INC. 552   2011-01-17   
214-902 A DLLSTXFLDS0  9533 SOUTHWESTERN BELL 552      
214-904 A DLLSTXFLDS0  9533 SOUTHWESTERN BELL 552      
214-905 A DLLSTXMEDS0  9533 SOUTHWESTERN BELL 552      
214-915 A DLLSTXRIDS3  9533 SOUTHWESTERN BELL 552      
214-915 0   9533 SOUTHWESTERN BELL 552      
214-915 1   9533 SOUTHWESTERN BELL 552      
214-915 2   177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2019-12-31   
214-915 3   9533 SOUTHWESTERN BELL 552      
214-915 4   9533 SOUTHWESTERN BELL 552      
214-915 5   9533 SOUTHWESTERN BELL 552      
214-915 6   9533 SOUTHWESTERN BELL 552      
214-915 7   9533 SOUTHWESTERN BELL 552      
214-915 8   793K TWC IP ENABLED SERVICES, LLC 552   2013-01-05   
214-915 9   9533 SOUTHWESTERN BELL 552      
214-916 A DLLSTXRIDS3  9533 SOUTHWESTERN BELL 552      
214-916 0   5562 METROPCS, INC. 552   2007-03-01   
214-916 1   5562 METROPCS, INC. 552   2007-03-01   
214-916 2   9533 SOUTHWESTERN BELL 552      
214-916 3   9533 SOUTHWESTERN BELL 552      
214-916 4   9533 SOUTHWESTERN BELL 552      
214-916 5   9533 SOUTHWESTERN BELL 552      
214-916 6   5562 METROPCS, INC. 552   2011-01-09   
214-916 7   5562 METROPCS, INC. 552   2007-03-01   
214-916 8   5562 METROPCS, INC. 552   2007-03-01   
214-916 9   5562 METROPCS, INC. 552   2007-03-01   
214-917 A DLLSTXRIDS3  9533 SOUTHWESTERN BELL 552      
214-920 A DLLSTXMEDS0  9533 SOUTHWESTERN BELL 552      
214-921 A DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-922 A DLLSTXRODS0  9533 SOUTHWESTERN BELL 552      
214-928 A DLLSTXHARPA  9533 SOUTHWESTERN BELL 552      
214-928 0   5562 METROPCS, INC. 552   2020-03-14   
214-928 1   9533 SOUTHWESTERN BELL 552      
214-928 2   9533 SOUTHWESTERN BELL 552      
214-928 3   9533 SOUTHWESTERN BELL 552      
214-928 4   9533 SOUTHWESTERN BELL 552      
214-928 5   9533 SOUTHWESTERN BELL 552      
214-928 6   9533 SOUTHWESTERN BELL 552      
214-928 7   9533 SOUTHWESTERN BELL 552      
214-928 8   9533 SOUTHWESTERN BELL 552      
214-928 9   9533 SOUTHWESTERN BELL 552      
214-932 A DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
214-933 A DLLSTXDVDS0  9533 SOUTHWESTERN BELL 552      
214-933 0   9533 SOUTHWESTERN BELL 552   2009-12-26   
214-933 1   9533 SOUTHWESTERN BELL 552   2009-12-26   
214-933 2   9533 SOUTHWESTERN BELL 552   2009-12-26   
214-933 3   9533 SOUTHWESTERN BELL 552   2009-12-26   
214-933 4   9533 SOUTHWESTERN BELL 552   2009-12-26   
214-933 5   9533 SOUTHWESTERN BELL 552   2009-12-26   
214-933 6   9533 SOUTHWESTERN BELL 552   2009-12-26   
214-933 7   9533 SOUTHWESTERN BELL 552   2009-12-26   
214-933 8   9533 SOUTHWESTERN BELL 552   2009-12-26   
214-933 9   9533 SOUTHWESTERN BELL 552   2009-12-26   
214-939 A DLLSTXRIDS0  9533 SOUTHWESTERN BELL 552      
214-939 0   6529 T-MOBILE USA, INC. 552   2025-03-06   
214-939 1   6529 T-MOBILE USA, INC. 552   2025-03-06   
214-939 2   9533 SOUTHWESTERN BELL 552      
214-939 3   9533 SOUTHWESTERN BELL 552      
214-939 4   9533 SOUTHWESTERN BELL 552      
214-939 5   9533 SOUTHWESTERN BELL 552      
214-939 6   9533 SOUTHWESTERN BELL 552      
214-939 7   829J PAETEC ITEL, LLC 552   2009-07-19   
214-939 8   9533 SOUTHWESTERN BELL 552      
214-939 9   5562 METROPCS, INC. 552   2016-03-11   
214-941 A DLLSTXWHRPA  9533 SOUTHWESTERN BELL 552      
214-942 A DLLSTXWHRPA  9533 SOUTHWESTERN BELL 552      
214-943 A DLLSTXWHRPA  9533 SOUTHWESTERN BELL 552      
214-944 A DLLSTXWHRPA  9533 SOUTHWESTERN BELL 552      
214-944 0   5562 METROPCS, INC. 552   2019-02-21   
214-944 1   9533 SOUTHWESTERN BELL 552      
214-944 2   9533 SOUTHWESTERN BELL 552      
214-944 3   9533 SOUTHWESTERN BELL 552      
214-944 4   9533 SOUTHWESTERN BELL 552      
214-944 5   9533 SOUTHWESTERN BELL 552      
214-944 6   9533 SOUTHWESTERN BELL 552      
214-944 7   5562 METROPCS, INC. 552   2018-01-25   
214-944 8   5562 METROPCS, INC. 552   2018-01-25   
214-944 9   5562 METROPCS, INC. 552   2018-02-28   
214-946 A DLLSTXWHRPA  9533 SOUTHWESTERN BELL 552      
214-946 0   5562 METROPCS, INC. 552   2018-01-25   
214-946 1   9533 SOUTHWESTERN BELL 552      
214-946 2   9533 SOUTHWESTERN BELL 552      
214-946 3   9533 SOUTHWESTERN BELL 552      
214-946 4   9533 SOUTHWESTERN BELL 552      
214-946 5   9533 SOUTHWESTERN BELL 552      
214-946 6   9533 SOUTHWESTERN BELL 552      
214-946 7   9533 SOUTHWESTERN BELL 552      
214-946 8   9533 SOUTHWESTERN BELL 552      
214-946 9   9533 SOUTHWESTERN BELL 552      
214-947 A DLLSTXWHRPA  9533 SOUTHWESTERN BELL 552      
214-948 A DLLSTXWHRPA  9533 SOUTHWESTERN BELL 552      
214-951 A DLLSTXMEDS0  9533 SOUTHWESTERN BELL 552      
214-951 0   9533 SOUTHWESTERN BELL 552      
214-951 1   9533 SOUTHWESTERN BELL 552      
214-951 2   9533 SOUTHWESTERN BELL 552      
214-951 3   9533 SOUTHWESTERN BELL 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 >>

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.