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: WRBGMOXAZMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
660-227 6 Butler MO 938F MCC TELEPHONY OF MISSOURI, LLC - MO 524   2010-08-09   
660-250 6 Norborne MO 938F MCC TELEPHONY OF MISSOURI, LLC - MO 524   2010-08-09   
660-910 1 Appleton City MO 938F MCC TELEPHONY OF MISSOURI, LLC - MO 524   2024-11-28   
816-376 6 Henrietta MO 938F MCC TELEPHONY OF MISSOURI, LLC - MO 524   2010-08-09   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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