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: CHMPILCPX5Y

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
447-600 1 Tolono IL 624H ONVOY SPECTRUM, LLC 370   2024-05-18   
447-627 0 Sibley IL 624H ONVOY SPECTRUM, LLC 370   2024-05-18   
447-644 0 Royal IL 624H ONVOY SPECTRUM, LLC 370   2024-05-18   
447-647 8 Mahomet IL 624H ONVOY SPECTRUM, LLC 370   2024-05-17   
447-666 1 Buckley IL 624H ONVOY SPECTRUM, LLC 370   2024-05-16   
447-667 1 Ogden IL 624H ONVOY SPECTRUM, LLC 370   2024-05-17   
447-674 0 Ivesdale IL 624H ONVOY SPECTRUM, LLC 370   2024-05-17   
447-677 0 Potomac IL 624H ONVOY SPECTRUM, LLC 370   2024-05-17   
447-737 1 East Lynn IL 624H ONVOY SPECTRUM, LLC 370   2024-05-16   
447-744 0 Broadlands IL 624H ONVOY SPECTRUM, LLC 370   2024-05-16   
447-766 1 Catlin IL 624H ONVOY SPECTRUM, LLC 370   2024-05-16   
447-774 1 Homer IL 624H ONVOY SPECTRUM, LLC 370   2024-05-17   
447-783 1 Ridge Farm IL 624H ONVOY SPECTRUM, LLC 370   2024-05-18   
447-800 9 Rankin IL 624H ONVOY SPECTRUM, LLC 370   2024-05-18   
447-832 1 Oakwood IL 624H ONVOY SPECTRUM, LLC 370   2024-05-17   
447-867 3 Westville IL 624H ONVOY SPECTRUM, LLC 370   2024-05-18   
447-900 8 Sidney IL 624H ONVOY SPECTRUM, LLC 370   2024-05-18   
447-902 A Champaign-Urbana IL 624H ONVOY SPECTRUM, LLC 370      
447-902 9 Champaign-Urbana IL 624H ONVOY SPECTRUM, LLC 370   2021-10-09   
447-999 0 Flatville IL 624H ONVOY SPECTRUM, LLC 370   2024-05-16   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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