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.

OCN: 468B PANHANDLE TELECOMMUNICATIONS SYSTEMS, INC.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
580-206 A Guymon OK GYMNOK041MD  546      
580-516 A Felt-Wheeless OK GYMNOK041MD  546      
580-517 A Boise City OK GYMNOK041MD  546      
580-518 A Keyes OK GYMNOK041MD  546      
580-519 A Griggs OK GYMNOK041MD  546      
580-520 A Eva OK GYMNOK041MD  546      
580-521 A Texhoma OK GYMNOK041MD  546      
580-522 A Hooker OK GYMNOK041MD  546      
580-523 A Tyrone OK GYMNOK041MD  546      
580-524 A Hardesty OK GYMNOK041MD  546      
580-525 A Balko OK GYMNOK041MD  546      
580-527 A Beaver OK GYMNOK041MD  546      
580-528 A Floris OK GYMNOK041MD  546      
580-539 A Turpin OK GYMNOK041MD  546      
580-552 A Logan OK GYMNOK041MD  546      
580-553 A Laverne OK LVRNOKXA1MD  536      
580-617 A Guymon OK GYMNOK041MD  546      
580-651 A Guymon OK GYMNOK041MD  546      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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