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: SXFLSDCHMMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
605-215 A Sioux Falls SD 6701 AERIAL COMMUNICATIONS, INC. 640      
605-231 A Sioux Falls SD 6701 AERIAL COMMUNICATIONS, INC. 640      
605-376 A Sioux Falls SD 6701 AERIAL COMMUNICATIONS, INC. 640      
605-418 A Aberdeen SD 6701 AERIAL COMMUNICATIONS, INC. 640      
605-521 A Sioux Falls SD 6701 AERIAL COMMUNICATIONS, INC. 640      
605-522 A Yankton SD 5562 METROPCS, INC. 640      
605-671 A Colton SD 6701 AERIAL COMMUNICATIONS, INC. 640      
605-675 A Vermillion SD 6701 AERIAL COMMUNICATIONS, INC. 640      
605-691 A Brookings SD 6701 AERIAL COMMUNICATIONS, INC. 640      
605-728 A Sioux Falls SD 6701 AERIAL COMMUNICATIONS, INC. 640      
605-736 A Brookings SD 6701 AERIAL COMMUNICATIONS, INC. 640      
605-751 A Beresford SD 5562 METROPCS, INC. 640      
605-805 A Pierre SD 5562 METROPCS, INC. 640      
605-868 A Watertown SD 6701 AERIAL COMMUNICATIONS, INC. 640      
605-953 A Hartford SD 6701 AERIAL COMMUNICATIONS, INC. 640      
605-963 A Dell Rapids SD 6701 AERIAL COMMUNICATIONS, INC. 640      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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