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: JFCYMOXAXDY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
235-206 A Jefferson City MO 225F PEERLESS NETWORK OF MISSOURI, LLC - MO 521   2025-04-20   
235-206 0 Jefferson City MO 225F PEERLESS NETWORK OF MISSOURI, LLC - MO 521   2025-04-20   
235-206 5 Jefferson City MO 225F PEERLESS NETWORK OF MISSOURI, LLC - MO 521   2026-04-24   
235-206 9 Jefferson City MO 225F PEERLESS NETWORK OF MISSOURI, LLC - MO 521   2025-12-15   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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