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: RVSDIAXOPS0

Remotes:

Switch Switch name Switch type
LNTRIAXORP0  LONE TREE  RP 
LNTRIAXORS0  LONE TREE  RS 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
319-648 A Riverside IA 1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 635      
319-648 0 Riverside IA 1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 635      
319-648 1 Riverside IA 1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 635      
319-648 2 Riverside IA 1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 635      
319-648 3 Riverside IA 1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 635      
319-648 4 Riverside IA 1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 635      
319-648 5 Riverside IA 1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 635      
319-648 9 Riverside IA 1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 635      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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