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: SALMSDXADS3

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
605-239 A Alexandria SD 1669 TRIOTEL COMMUNICATIONS, INC. 640      
605-246 A Spencer SD 1669 TRIOTEL COMMUNICATIONS, INC. 640      
605-247 A Center SD 1669 TRIOTEL COMMUNICATIONS, INC. 640      
605-425 A Salem SD 1669 TRIOTEL COMMUNICATIONS, INC. 640      
605-449 A Emery SD 1669 TRIOTEL COMMUNICATIONS, INC. 640      
605-485 A Winfred SD 1669 TRIOTEL COMMUNICATIONS, INC. 640      
605-523 A Canova SD 1669 TRIOTEL COMMUNICATIONS, INC. 640      
605-825 A Clayton SD 1669 TRIOTEL COMMUNICATIONS, INC. 640      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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