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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
947-426 4 Southfield MI 516J TON80 COMMUNICATIONS, LLC 340   2022-03-08   
947-436 A Troy MI 516J TON80 COMMUNICATIONS, LLC 340      
947-436 4 Troy MI 516J TON80 COMMUNICATIONS, LLC 340   2022-03-31   
947-447 8 Rochester MI 516J TON80 COMMUNICATIONS, LLC 340   2021-07-21   
947-466 A Milford-White Lake MI 516J TON80 COMMUNICATIONS, LLC 340      
947-466 3 Milford-White Lake MI 516J TON80 COMMUNICATIONS, LLC 340   2022-03-16   
947-546 A Walled Lake MI 516J TON80 COMMUNICATIONS, LLC 340      
947-546 3 Walled Lake MI 516J TON80 COMMUNICATIONS, LLC 340   2022-04-30   
947-837 A West Bloomfield MI 516J TON80 COMMUNICATIONS, LLC 340      
947-837 4 West Bloomfield MI 516J TON80 COMMUNICATIONS, LLC 340   2022-03-10   

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

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