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.
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Switch: FRTNILFMRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
309-245 A Farmington IL 9329 ILLINOIS BELL TEL CO 368      
309-245 2 Farmington IL 9329 ILLINOIS BELL TEL CO 368      
309-245 4 Farmington IL 9329 ILLINOIS BELL TEL CO 368      
309-245 9 Farmington IL 9329 ILLINOIS BELL TEL CO 368      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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