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: 817 [Rate centres in NPA 817] [Dial plan for NPA 817]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-256 6 Fort Worth TX   6529 T-MOBILE USA, INC. 552   2025-05-05   
817-256 7 Fort Worth TX   6529 T-MOBILE USA, INC. 552   2025-05-05   
817-256 8 Fort Worth TX   6529 T-MOBILE USA, INC. 552   2025-05-05   
817-256 9 Fort Worth TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
817-257 A Fort Worth TX DLLSTXHM0MD  829J PAETEC ITEL, LLC 552   2025-01-23   
817-258 A Fort Worth TX FTWOTXEDDS3  9533 SOUTHWESTERN BELL 552      
817-258 0 Fort Worth TX   9533 SOUTHWESTERN BELL 552      
817-258 1 Fort Worth TX   5562 METROPCS, INC. 552   2006-03-17   
817-258 2 Fort Worth TX   9533 SOUTHWESTERN BELL 552      
817-258 3 Fort Worth TX   9533 SOUTHWESTERN BELL 552      
817-258 4 Fort Worth TX   9533 SOUTHWESTERN BELL 552      
817-258 5 Fort Worth TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2014-12-22   
817-258 6 Fort Worth TX   9533 SOUTHWESTERN BELL 552      
817-258 7 Fort Worth TX   9533 SOUTHWESTERN BELL 552      
817-258 8 Fort Worth TX   9533 SOUTHWESTERN BELL 552      
817-258 9 Fort Worth TX   9533 SOUTHWESTERN BELL 552      
817-259 A Fort Worth TX DLLSTXBKDS1  7715 MATRIX TELECOM, LLC. S/I/I TNCI - TX 552      
817-260 A Arlington TX DLLSTXBKDS1  7715 MATRIX TELECOM, LLC. S/I/I TNCI - TX 552      
817-261 A Arlington EMS TX FTWOTXCRDS1  9533 SOUTHWESTERN BELL 552      
817-262 A Arlington EMS TX FTWOTXEDDS3  9533 SOUTHWESTERN BELL 552      
817-262 0 Arlington EMS TX   6529 T-MOBILE USA, INC. 552   2005-08-22   
817-262 1 Arlington EMS TX   5562 METROPCS, INC. 552   2007-07-01   
817-262 2 Arlington EMS TX   6529 T-MOBILE USA, INC. 552   2005-08-22   
817-262 3 Arlington EMS TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2009-04-04   
817-262 4 Arlington EMS TX   9533 SOUTHWESTERN BELL 552      
817-262 5 Arlington EMS TX   903C ONVOY, LLC - TX 552   2010-03-19   
817-262 6 Arlington EMS TX   9533 SOUTHWESTERN BELL 552      
817-262 7 Arlington EMS TX   6529 T-MOBILE USA, INC. 552   2005-09-24   
817-262 8 Arlington EMS TX   6529 T-MOBILE USA, INC. 552   2005-09-24   
817-262 9 Arlington EMS TX   6529 T-MOBILE USA, INC. 552   2005-08-22   
817-263 A Fort Worth TX FTWOTXAXDS0  9533 SOUTHWESTERN BELL 552      
817-264 A Arlington EMS TX RONKTXWORS2  9533 SOUTHWESTERN BELL 552      
817-264 0 Arlington EMS TX   9533 SOUTHWESTERN BELL 552      
817-264 1 Arlington EMS TX   6529 T-MOBILE USA, INC. 552   2006-04-15   
817-264 2 Arlington EMS TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2013-01-19   
817-264 3 Arlington EMS TX   903C ONVOY, LLC - TX 552   2009-02-10   
817-264 4 Arlington EMS TX   9533 SOUTHWESTERN BELL 552      
817-264 5 Arlington EMS TX   5562 METROPCS, INC. 552   2015-01-30   
817-264 6 Arlington EMS TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-02-26   
817-264 7 Arlington EMS TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-02-26   
817-264 8 Arlington EMS TX   9533 SOUTHWESTERN BELL 552      
817-264 9 Arlington EMS TX   9533 SOUTHWESTERN BELL 552      
817-265 A Arlington EMS TX FTWOTXCRDS1  9533 SOUTHWESTERN BELL 552      
817-266 A Glendale EMS TX ELSSTXAEGT6  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
817-267 A Euless EMS TX FTWOTXEUDS0  9533 SOUTHWESTERN BELL 552      
817-268 A Euless EMS TX FTWOTXATRP0  9533 SOUTHWESTERN BELL 552      
817-268 0 Euless EMS TX   9533 SOUTHWESTERN BELL 552      
817-268 1 Euless EMS TX   9533 SOUTHWESTERN BELL 552      
817-268 2 Euless EMS TX   9533 SOUTHWESTERN BELL 552      
817-268 3 Euless EMS TX   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 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 >>

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.