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: SNLDILXDDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
309-745 A Sunnyland IL 1015 FRONTIER NORTH, INC. - IL 368      
309-745 1 Sunnyland IL 1015 FRONTIER NORTH, INC. - IL 368      
309-745 3 Sunnyland IL 1015 FRONTIER NORTH, INC. - IL 368      
309-745 5 Sunnyland IL 1015 FRONTIER NORTH, INC. - IL 368      
309-745 8 Sunnyland IL 1015 FRONTIER NORTH, INC. - IL 368      
309-745 9 Sunnyland IL 1015 FRONTIER NORTH, INC. - IL 368      
309-819 A Sunnyland IL 1015 FRONTIER NORTH, INC. - IL 368      
309-819 0 Sunnyland IL 1015 FRONTIER NORTH, INC. - IL 368      
309-819 9 Sunnyland IL 1015 FRONTIER NORTH, INC. - IL 368      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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