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: MNTCCAXG82A

Remotes:

Switch Switch name Switch type
CLEMCAXFRS9  CLEMENTS  DRL 
FRTNCAXFRS8  FARMINGTON  RLC 
LNDNCAXFRSA  LINDEN  RSC 
LTHPCAXFRS3  LATHROP  RSC 
RIPNCAXFRS5  RIPON  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
209-239 A Manteca CA 4420 FRONTIER CALIFORNIA INC. 738      
209-825 A Manteca CA 4420 FRONTIER CALIFORNIA INC. 738      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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