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: RONNMTXCDS0

Remotes:

Switch Switch name Switch type
FHIRMT01RS0  FLATHEAD INDIAN RESERVATION  DC1 
PABLMTXCRS1  PABLO  DC1 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
406-528 A Ronan MT 2252 RONAN TEL. CO. 648      
406-676 A Ronan MT 2252 RONAN TEL. CO. 648      

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

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