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: MTONILXCRMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
447-221 A Westervelt IL 224C ONVOY, LLC 976      
447-221 1 Westervelt IL 224C ONVOY, LLC 976   2021-06-07   
447-221 2 Westervelt IL 224C ONVOY, LLC 976   2021-03-27   
447-221 3 Westervelt IL 224C ONVOY, LLC 976   2021-05-09   
447-221 4 Westervelt IL 224C ONVOY, LLC 976   2021-07-05   
447-223 A Findlay IL 224C ONVOY, LLC 976      
447-223 2 Findlay IL 224C ONVOY, LLC 976   2021-03-27   
447-223 3 Findlay IL 224C ONVOY, LLC 976   2021-05-09   
447-223 4 Findlay IL 224C ONVOY, LLC 976   2021-06-07   
447-223 5 Findlay IL 224C ONVOY, LLC 976   2021-07-05   
447-224 A Kirksville IL 224C ONVOY, LLC 976      
447-224 2 Kirksville IL 224C ONVOY, LLC 976   2021-03-27   
447-224 3 Kirksville IL 224C ONVOY, LLC 976   2021-05-09   
447-224 4 Kirksville IL 224C ONVOY, LLC 976   2021-06-07   
447-224 5 Kirksville IL 224C ONVOY, LLC 976   2021-07-05   
447-250 2 Charleston IL 224C ONVOY, LLC 976   2023-05-04   
447-288 A Charleston IL 224C ONVOY, LLC 976   2024-04-22   
447-288 0 Charleston IL 224C ONVOY, LLC 976   2024-04-22   
447-288 1 Charleston IL 224C ONVOY, LLC 976   2024-04-22   
447-290 A Effingham IL 224C ONVOY, LLC 976   2024-05-04   
447-290 0 Effingham IL 224C ONVOY, LLC 976   2024-05-04   
447-810 A Mattoon IL 224C ONVOY, LLC 976      
447-810 0 Mattoon IL 224C ONVOY, LLC 976   2021-05-15   

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Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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