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: ALMTILXEDS0

Remotes:

Switch Switch name Switch type
BCCYILXERS0  BEECHER CITY  RSS 
BRTWILXERS0  BROWNSTOWN  1RE 
EDWDILXERS0  EDGEWOOD  1RE 
FARNILXERS0  FARINA  1RE 
STEMILXERS0  ST ELMO  1RE 
STPRILXERS0  ST PETER  1RE 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
618-483 A Altamont IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      

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

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