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: ESCNMIMNDS0

Remotes:

Switch Switch name Switch type
BRRVMIMNRSA  BARK RIVER  DE5 
CRNLMIMNRSA  CORNELL  DLU 
GLDSMIGERSA  GLADSTONE  DLU 
PWRSMIMNRSA  POWERS  DLU 
ROCKMIMNRSA  ROCK  DE5 
RPRVMIMNRSA  RAPID RIVER  DLU 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
906-233 A Escanaba MI 9323 MICHIGAN BELL TEL CO 342      
906-786 A Escanaba MI 9323 MICHIGAN BELL TEL CO 342      
906-789 A Escanaba MI 9323 MICHIGAN BELL TEL CO 342      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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