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: TAYLMIWKDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
313-291 A Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-292 A Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-295 A Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-299 A Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-299 0 Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-299 1 Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-299 2 Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-299 3 Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-299 4 Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-299 5 Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-299 7 Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-299 8 Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-299 9 Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-375 A Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-375 2 Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
313-375 7 Detroit Zone 6 MI 9323 AMERITECH MICHIGAN 340      
734-287 A Wyandotte MI 9323 AMERITECH MICHIGAN 340      
734-374 A Wyandotte MI 9323 AMERITECH MICHIGAN 340      
734-374 0 Wyandotte MI 9323 AMERITECH MICHIGAN 340      
734-374 1 Wyandotte MI 9323 AMERITECH MICHIGAN 340      
734-374 2 Wyandotte MI 9323 AMERITECH MICHIGAN 340      
734-374 3 Wyandotte MI 9323 AMERITECH MICHIGAN 340      
734-374 4 Wyandotte MI 9323 AMERITECH MICHIGAN 340      
734-374 5 Wyandotte MI 9323 AMERITECH MICHIGAN 340      
734-374 7 Wyandotte MI 9323 AMERITECH MICHIGAN 340      
734-374 8 Wyandotte MI 9323 AMERITECH MICHIGAN 340      
734-374 9 Wyandotte MI 9323 AMERITECH MICHIGAN 340      
734-759 5 Wyandotte MI 9323 AMERITECH MICHIGAN 340   2005-09-07   
734-759 6 Wyandotte MI 9323 AMERITECH MICHIGAN 340   2005-09-07   
734-946 A Romulus MI 9323 AMERITECH MICHIGAN 340      
734-947 A Romulus MI 9323 AMERITECH MICHIGAN 340      
734-947 1 Romulus MI 9323 AMERITECH MICHIGAN 340      
734-947 2 Romulus MI 9323 AMERITECH MICHIGAN 340      
734-947 3 Romulus MI 9323 AMERITECH MICHIGAN 340      
734-947 4 Romulus MI 9323 AMERITECH MICHIGAN 340      
734-947 5 Romulus MI 9323 AMERITECH MICHIGAN 340      
734-947 6 Romulus MI 9323 AMERITECH MICHIGAN 340      
734-947 7 Romulus MI 9323 AMERITECH MICHIGAN 340      
734-947 9 Romulus MI 9323 AMERITECH MICHIGAN 340      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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