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.
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Switch: LTFDMIXJDS1

Remotes:

Switch Switch name Switch type
MSHVMIXIRS0  MOSHERVILLE  DCL 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
517-542 A Litchfield MI 0671 BRIGHTSPEED OF CENTRAL MICHIGAN, INC 346      

Last updated: Sat, 02 May 2026 12:20:53 UTC

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