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: FKLNNEXHDS0

Remotes:

Switch Switch name Switch type
BLTNNEXGRS0  BLOOMINGTON  1RC 
HLDRNEXGRS0  HILDRETH  1RC 
NAPNNEXGRS0  NAPONEE  1RC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
308-425 A Franklin NE 1128 CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 646      
785-429 A South Franklin KS 1128 CITIZENS TELECOM OF NE LLC DBA FRONTIER COM OF NE 646      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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