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: CFVLIN01GMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
317-907 6 Indianapolis IN 478J NUSO, LLC 336   2024-08-09   
317-907 7 Indianapolis IN 478J NUSO, LLC 336   2024-08-09   
463-237 A Indianapolis IN 478J NUSO, LLC 336      
463-237 1 Indianapolis IN 478J NUSO, LLC 336   2020-10-02   
463-291 2 Indianapolis IN 478J NUSO, LLC 336   2024-02-11   
463-291 4 Indianapolis IN 478J NUSO, LLC 336   2024-02-11   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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