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: JFCYMOXAX6Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
573-257 A Jefferson City MO 624H ONVOY SPECTRUM, LLC 521      
573-257 8 Jefferson City MO 624H ONVOY SPECTRUM, LLC 521      
573-861 1 Jefferson City MO 624H ONVOY SPECTRUM, LLC 521      
573-861 3 Jefferson City MO 624H ONVOY SPECTRUM, LLC 521      
573-861 4 Jefferson City MO 624H ONVOY SPECTRUM, LLC 521      
573-861 5 Jefferson City MO 624H ONVOY SPECTRUM, LLC 521      
573-861 6 Jefferson City MO 624H ONVOY SPECTRUM, LLC 521      

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

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