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: 2371 CASCADE UTILITIES, INC.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
503-337 A Estacada OR ESCDORXXDS0  672      
503-630 A Estacada OR ESCDORXXDS0  672      
503-637 A Estacada OR ESCDORXXDS0  672      
503-695 A Corbett OR CRBTORXCRS0  672      
503-834 A Estacada OR ESCDORXXDS0  672      
541-584 A Elkton OR EKTNORXBDS0  670      
541-587 A Scottsburg OR EKTNORXBDS0  670      
541-599 A Ash Valley OR EKTNORXBDS0  670      
541-853 A Medical Springs OR MDSPORXXRS0  672      
541-856 A Haines OR HANSORXARS0  672      

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

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