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: PSTNIAXODS0

Remotes:

Switch Switch name Switch type
GSLKIAXORS5  GOOSE LAKE  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
563-577 A Goose Lake IA 1276 PRESTON TEL. CO. 634      
563-689 A Preston IA 1276 PRESTON TEL. CO. 634      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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