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: MNMOILXDDS0

Remotes:

Switch Switch name Switch type
ABNGILXDRS0  ABINGDON  RSC 
BGVLILXDRS1  BIGGSVILLE  RSS 
GLPTILXDRS0  GULFPORT  DRL 
KRWDILXDRS0  KIRKWOOD  RSS 
LNMLILXDRS0  LONDON MILLS  1RC 
RSVLILXDRS1  ROSEVILLE  RSC 
STRNILXDRS0  STRONGHURST  RSS 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
309-457 A Monmouth IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
309-734 A Monmouth IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      

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

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