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: NWTNIAXCPS0

Remotes:

Switch Switch name Switch type
ALDNIAXORS0  ALDEN  DRL 
BCKYIAXORS0  BUCKEYE  1RC 
CMBRIAXORS0  CAMBRIDGE  1RC 
DOWSIAXORS0  DOWS  RSC 
MINGIAXORL0  MINGO  RLC 
MONRIAXORS0  MONROE  RS 
MXWLIAXPRS0  MAXWELL  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
641-791 A Newton IA 1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-792 A Newton IA 1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-841 A Newton IA 1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      

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

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