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: CLMBIN01DS0

Remotes:

Switch Switch name Switch type
CLMBIN02RSF  COLUMBUS  RSS 
EDBGIN01RSH  EDINBURGH  RSS 
EZTWIN01RSA  ELIZABETHTOWN  RSS 
FLRKIN01RSC  FLAT ROCK  RSC 
HOPEIN01RSJ  HOPE  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
812-314 A Columbus IN 9325 INDIANA BELL TEL CO INC 338      
812-348 A Columbus IN 9325 INDIANA BELL TEL CO INC 338      
812-372 A Columbus IN 9325 INDIANA BELL TEL CO INC 338      
812-373 A Columbus IN 9325 INDIANA BELL TEL CO INC 338      
812-374 A Columbus IN 9325 INDIANA BELL TEL CO INC 338      
812-375 A Columbus IN 9325 INDIANA BELL TEL CO INC 338      
812-376 A Columbus IN 9325 INDIANA BELL TEL CO INC 338      
812-377 A Columbus IN 9325 INDIANA BELL TEL CO INC 338      
812-378 A Columbus IN 9325 INDIANA BELL TEL CO INC 338      
812-379 A Columbus IN 9325 INDIANA BELL TEL CO INC 338      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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