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: PTLDMIPTRSA

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
517-647 A Portland MI 9323 MICHIGAN BELL TEL CO 346      
517-647 0 Portland MI 9323 MICHIGAN BELL TEL CO 346      
517-647 1 Portland MI 9323 MICHIGAN BELL TEL CO 346      
517-647 2 Portland MI 9323 MICHIGAN BELL TEL CO 346      
517-647 4 Portland MI 9323 MICHIGAN BELL TEL CO 346      
517-647 5 Portland MI 9323 MICHIGAN BELL TEL CO 346      
517-647 6 Portland MI 9323 MICHIGAN BELL TEL CO 346      
517-647 7 Portland MI 9323 MICHIGAN BELL TEL CO 346      

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

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