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: SXFLSD100MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
605-368 6 Harrisburg-Tea SD 365E YMAX COMMUNICATIONS CORP. - SD 640   2008-09-09   
605-731 8 Sioux Falls SD 365E YMAX COMMUNICATIONS CORP. - SD 640   2011-03-14   
605-743 6 Harrisburg-Tea SD 365E YMAX COMMUNICATIONS CORP. - SD 640   2008-09-09   
605-743 7 Harrisburg-Tea SD 365E YMAX COMMUNICATIONS CORP. - SD 640   2008-09-09   
605-838 A Sioux Falls SD 365E YMAX COMMUNICATIONS CORP. - SD 640      
605-838 0 Sioux Falls SD 365E YMAX COMMUNICATIONS CORP. - SD 640   2008-08-01   
605-838 1 Sioux Falls SD 365E YMAX COMMUNICATIONS CORP. - SD 640   2008-08-01   
605-838 2 Sioux Falls SD 365E YMAX COMMUNICATIONS CORP. - SD 640   2008-08-01   
605-838 3 Sioux Falls SD 365E YMAX COMMUNICATIONS CORP. - SD 640   2008-08-01   
605-838 4 Sioux Falls SD 365E YMAX COMMUNICATIONS CORP. - SD 640   2008-08-01   
712-746 3 East Harrisburg IA 353E YMAX COMMUNICATIONS CORP. - IA 640   2008-09-15   
712-746 4 East Harrisburg IA 353E YMAX COMMUNICATIONS CORP. - IA 640   2008-09-15   
712-746 5 East Harrisburg IA 353E YMAX COMMUNICATIONS CORP. - IA 640   2008-09-15   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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