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: SNDSMIMNRSA

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
810-633 A Applegate MI 9323 MICHIGAN BELL TEL CO 340      
810-633 9 Applegate MI 9323 MICHIGAN BELL TEL CO 340      
810-648 A Sandusky MI 9323 MICHIGAN BELL TEL CO 340      
810-648 0 Sandusky MI 9323 MICHIGAN BELL TEL CO 340      
810-648 1 Sandusky MI 9323 MICHIGAN BELL TEL CO 340      
810-648 2 Sandusky MI 9323 MICHIGAN BELL TEL CO 340      
810-648 3 Sandusky MI 9323 MICHIGAN BELL TEL CO 340      
810-648 4 Sandusky MI 9323 MICHIGAN BELL TEL CO 340      
810-648 5 Sandusky MI 9323 MICHIGAN BELL TEL CO 340      
810-648 6 Sandusky MI 9323 MICHIGAN BELL TEL CO 340      
810-648 9 Sandusky MI 9323 MICHIGAN BELL TEL CO 340      

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

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