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: HOLTMIHEDS0

Remotes:

Switch Switch name Switch type
MASNMIMSRSA  MASON  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
517-694 A Holt MI 9323 MICHIGAN BELL TEL CO 346      
517-699 A Holt MI 9323 MICHIGAN BELL TEL CO 346      
517-699 0 Holt MI 9323 MICHIGAN BELL TEL CO 346      
517-699 1 Holt MI 9323 MICHIGAN BELL TEL CO 346      
517-699 2 Holt MI 9323 MICHIGAN BELL TEL CO 346      
517-699 3 Holt MI 9323 MICHIGAN BELL TEL CO 346      
517-699 4 Holt MI 9323 MICHIGAN BELL TEL CO 346      
517-699 5 Holt MI 9323 MICHIGAN BELL TEL CO 346      
517-699 6 Holt MI 9323 MICHIGAN BELL TEL CO 346      
517-699 7 Holt MI 9323 MICHIGAN BELL TEL CO 346      
517-699 8 Holt MI 9323 MICHIGAN BELL TEL CO 346      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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