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
972-232 8 Dallas TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-232 9 Dallas TX DLLSTXSQDS4  327E YMAX COMMUNICATIONS CORP. - TX 552   2011-07-08   
972-233 A Dallas TX DLLSTXADDS1  9533 SOUTHWESTERN BELL 552      
972-234 A Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-235 A Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-236 A Carrollton TX DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-236 0 Carrollton TX DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-236 1 Carrollton TX DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-236 2 Carrollton TX DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-236 3 Carrollton TX DLLSTX97LMD  997G LOCAL ACCESS LLC - TX 552   2016-01-04   
972-236 4 Carrollton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2016-01-07   
972-236 5 Carrollton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2016-01-07   
972-236 6 Carrollton TX DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-236 7 Carrollton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2011-04-04   
972-236 8 Carrollton TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2015-12-30   
972-236 9 Carrollton TX DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-237 A Grand Prairie TX DLLSTXGPRPA  9533 SOUTHWESTERN BELL 552      
972-238 A Dallas TX DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-239 A Dallas TX DLLSTXADDS1  9533 SOUTHWESTERN BELL 552      
972-240 A Plano TX GRLDTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-241 A Dallas TX DLLSTXFBDS0  9533 SOUTHWESTERN BELL 552      
972-242 A Carrollton TX CRTNTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-243 A Dallas TX DLLSTXFBDS0  9533 SOUTHWESTERN BELL 552      
972-244 A Plano TX IRNGTXXCLMD  7421 AT&T - LOCAL 552      
972-244 0 Plano TX IRNGTXXCLMD  7421 AT&T - LOCAL 552      
972-244 1 Plano TX IRNGTXXCLMD  7421 AT&T - LOCAL 552      
972-244 2 Plano TX IRNGTXXCLMD  7421 AT&T - LOCAL 552      
972-244 3 Plano TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-11-18   
972-244 4 Plano TX DLLSTXHMDS0  7409 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - TX 552   2011-01-20   
972-244 5 Plano TX IRNGTXXCLMD  7421 AT&T - LOCAL 552      
972-244 6 Plano TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-10-16   
972-244 7 Plano TX DLLSTXHMDS0  7409 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - TX 552   2011-01-03   
972-244 8 Plano TX DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2008-06-12   
972-244 9 Plano TX IRNGTXXCLMD  7421 AT&T - LOCAL 552      
972-245 A Carrollton TX CRTNTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-246 A Dallas TX ADMSTX01DS0  7421 AT&T - LOCAL 552      
972-246 0 Dallas TX ADMSTX01DS0  7421 AT&T - LOCAL 552      
972-246 1 Dallas TX ADMSTX01DS0  7421 AT&T - LOCAL 552      
972-246 2 Dallas TX ADMSTX01DS0  7421 AT&T - LOCAL 552      
972-246 3 Dallas TX ADMSTX01DS0  7421 AT&T - LOCAL 552      
972-246 4 Dallas TX ADMSTX01DS0  7421 AT&T - LOCAL 552      
972-246 5 Dallas TX ADMSTX01DS0  7421 AT&T - LOCAL 552      
972-246 6 Dallas TX ADMSTX01DS0  7421 AT&T - LOCAL 552      
972-246 7 Dallas TX DLLTTX01DMD  5562 METROPCS, INC. 552   2010-03-01   
972-246 8 Dallas TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-11-04   
972-246 9 Dallas TX DLLTTX01DMD  5562 METROPCS, INC. 552   2010-03-01   
972-247 A Dallas TX DLLSTXFBDS0  9533 SOUTHWESTERN BELL 552      
972-248 A Dallas TX DLLSTXREDS0  9533 SOUTHWESTERN BELL 552      
972-249 A Grand Prairie EMS TX DLLSTX97DS3  8413 ALLEGIANCE TELECOM OF TEXAS, INC. 552      
972-249 0 Grand Prairie EMS TX DLLSTX97DS3  8413 ALLEGIANCE TELECOM OF TEXAS, INC. 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 >>

Last updated: Thu, 04 Aug 2022 23:14:42 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.