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: CMPKMICPDS0

Remotes:

Switch Switch name Switch type
CDSPMIMNRSA  CEDAR SPRINGS  5ER 
FRMTMIMNRSA  FREMONT  5ER 
GRNTMIMNRSA  GRANT  5ER 
MRLYMIMNRSA  MORLEY  5ER 
RCFRMIMNRS1  ROCKFORD  EXM 
SDLKMIMNRSA  SAND LAKE  5ER 
SPRTMIMNRSA  SPARTA  5ER 
TRFNMIMNRSA  TRUFANT  5ER 
WHCLMIADRSA  WHITE CLOUD  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
616-647 A Grand Rapids MI 9323 MICHIGAN BELL TEL CO 348      
616-647 0 Grand Rapids MI 9323 MICHIGAN BELL TEL CO 348      
616-647 1 Grand Rapids MI 9323 MICHIGAN BELL TEL CO 348      
616-647 2 Grand Rapids MI 9323 MICHIGAN BELL TEL CO 348      
616-647 3 Grand Rapids MI 9323 MICHIGAN BELL TEL CO 348      
616-647 4 Grand Rapids MI 9323 MICHIGAN BELL TEL CO 348      
616-647 6 Grand Rapids MI 9323 MICHIGAN BELL TEL CO 348      
616-647 8 Grand Rapids MI 9323 MICHIGAN BELL TEL CO 348      
616-647 9 Grand Rapids MI 9323 MICHIGAN BELL TEL CO 348      
616-784 A Grand Rapids MI 9323 MICHIGAN BELL TEL CO 348      
616-785 A Grand Rapids MI 9323 MICHIGAN BELL TEL CO 348      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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