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: DLTNNEXSDS0

Remotes:

Switch Switch name Switch type
BSHNNEXSRS0  BUSHNELL  1RC 
DIX NEXSRS0  DIX  1RC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
308-377 A Dalton NE 1537 DALTON TEL. CO. 646      
308-483 A Lodgepole NE 1537 DALTON TEL. CO. 646      
308-884 A Gurley NE 1537 DALTON TEL. CO. 646      

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

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