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.

Switch: DLLSTXAL0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
254-233 4 Strawn TX 515J IP HORIZON LLC 552   2021-06-01   
254-505 9 Ranger TX 515J IP HORIZON LLC 552   2024-01-04   
254-572 1 Strawn TX 515J IP HORIZON LLC 552   2024-01-04   
430-258 0 Marshall TX 515J IP HORIZON LLC 554   2021-03-18   
469-768 5 Frisco TX 515J IP HORIZON LLC 552   2021-03-18   
469-870 6 Grand Prairie TX 515J IP HORIZON LLC 552   2021-03-18   
469-902 A Dallas TX 515J IP HORIZON LLC 552      
682-343 2 North Richland Hills TX 515J IP HORIZON LLC 552   2021-04-23   
682-428 1 Fort Worth TX 515J IP HORIZON LLC 552   2021-03-18   
903-434 0 Mount Pleasant TX 515J IP HORIZON LLC 554   2021-03-18   
903-653 2 Longview TX 515J IP HORIZON LLC 554   2021-03-21   
940-253 2 Bowie TX 515J IP HORIZON LLC 548   2021-03-18   
940-282 3 Graham TX 515J IP HORIZON LLC 548   2021-03-18   
940-292 1 Vernon TX 515J IP HORIZON LLC 548   2021-03-18   
940-477 0 Henrietta TX 515J IP HORIZON LLC 548   2021-03-18   
940-592 0 Iowa Park TX 515J IP HORIZON LLC 548   2021-03-18   
945-234 9 McKinney TX 515J IP HORIZON LLC 552   2021-03-18   

Last updated: Fri, 28 Jun 2024 03:14:50 UTC

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