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: LIVNMIMNRP0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
313-937 A Detroit Zone 5 MI 9323 AMERITECH MICHIGAN 340      
734-261 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-266 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-334 A Wayne MI 9323 AMERITECH MICHIGAN 340      
734-367 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-421 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-422 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-425 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-427 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-458 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-466 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-513 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-522 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-523 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-524 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-525 A Livonia MI 9323 AMERITECH MICHIGAN 340      
734-762 A Livonia MI 9323 AMERITECH MICHIGAN 340      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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