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: CSNVMICBRSA

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
616-675 A Casnovia MI 9323 MICHIGAN BELL TEL CO 348      
616-675 3 Casnovia MI 9323 MICHIGAN BELL TEL CO 348      
616-675 4 Casnovia MI 9323 MICHIGAN BELL TEL CO 348      
616-675 5 Casnovia MI 9323 MICHIGAN BELL TEL CO 348      
616-675 7 Casnovia MI 9323 MICHIGAN BELL TEL CO 348      
616-678 A Kent City MI 9323 MICHIGAN BELL TEL CO 348      
616-678 4 Kent City MI 9323 MICHIGAN BELL TEL CO 348      
616-678 5 Kent City MI 9323 MICHIGAN BELL TEL CO 348      
616-678 7 Kent City MI 9323 MICHIGAN BELL TEL CO 348      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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