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: IPLSIN07DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
317-216 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      
317-280 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      
317-290 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      
317-291 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      
317-293 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      
317-295 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      
317-297 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      
317-298 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      
317-299 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      
317-328 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      
317-329 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      
317-347 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      
317-387 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      
317-388 A Indianapolis IN 9325 INDIANA BELL TEL CO INC 336      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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