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: KLFLOR54DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
541-273 A Klamath Falls OR 9638 QWEST CORPORATION 670      
541-274 2 Klamath Falls OR 9638 QWEST CORPORATION 670   2006-12-19   
541-274 3 Klamath Falls OR 9638 QWEST CORPORATION 670   2006-12-19   
541-274 4 Klamath Falls OR 9638 QWEST CORPORATION 670   2006-12-19   
541-274 5 Klamath Falls OR 9638 QWEST CORPORATION 670   2006-12-19   
541-274 6 Klamath Falls OR 9638 QWEST CORPORATION 670   2006-12-19   
541-274 7 Klamath Falls OR 9638 QWEST CORPORATION 670   2007-07-16   
541-274 8 Klamath Falls OR 9638 QWEST CORPORATION 670   2006-12-19   
541-850 A Klamath Falls OR 9638 QWEST CORPORATION 670      
541-851 A Klamath Falls OR 9638 QWEST CORPORATION 670      
541-851 0 Klamath Falls OR 9638 QWEST CORPORATION 670      
541-851 4 Klamath Falls OR 9638 QWEST CORPORATION 670   2003-11-18   
541-851 5 Klamath Falls OR 9638 QWEST CORPORATION 670      
541-851 8 Klamath Falls OR 9638 QWEST CORPORATION 670      
541-880 A Klamath Falls OR 9638 QWEST CORPORATION 670      
541-880 0 Klamath Falls OR 9638 QWEST CORPORATION 670      
541-880 1 Klamath Falls OR 9638 QWEST CORPORATION 670      
541-880 2 Klamath Falls OR 9638 QWEST CORPORATION 670      
541-880 5 Klamath Falls OR 9638 QWEST CORPORATION 670      
541-880 7 Klamath Falls OR 9638 QWEST CORPORATION 670      
541-882 A Klamath Falls OR 9638 QWEST CORPORATION 670      
541-883 A Klamath Falls OR 9638 QWEST CORPORATION 670      
541-884 A Klamath Falls OR 9638 QWEST CORPORATION 670      
541-885 A Klamath Falls OR 9638 QWEST CORPORATION 670      

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

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