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: SHPTLAMA02Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
318-203 A Shreveport LA 624H ONVOY SPECTRUM, LLC 486      
318-266 A Alexandria LA 624H ONVOY SPECTRUM, LLC 486      
318-440 A Blanchard LA 624H ONVOY SPECTRUM, LLC 486      
318-530 A Calhoun LA 624H ONVOY SPECTRUM, LLC 486      
318-830 A Farmerville LA 624H ONVOY SPECTRUM, LLC 486      
318-844 A Gibsland LA 624H ONVOY SPECTRUM, LLC 486      
318-890 A Waterproof LA 624H ONVOY SPECTRUM, LLC 486      
318-901 A Shreveport LA 624H ONVOY SPECTRUM, LLC 486      
318-975 A Zwolle LA 624H ONVOY SPECTRUM, LLC 486      
318-983 A Winnfield LA 624H ONVOY SPECTRUM, LLC 486      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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