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: CLMAMOXAXXX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
235-208 A Columbia MO 225F PEERLESS NETWORK OF MISSOURI, LLC - MO 521   2025-04-27   
235-208 0 Columbia MO 225F PEERLESS NETWORK OF MISSOURI, LLC - MO 521   2025-04-27   
235-208 5 Columbia MO 225F PEERLESS NETWORK OF MISSOURI, LLC - MO 521   2026-03-14   
235-208 6 Columbia MO 225F PEERLESS NETWORK OF MISSOURI, LLC - MO 521   2026-07-16   

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

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