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.
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NPA: 235 [Rate centres in NPA 235] [Dial plan for NPA 235]

NXX: 217

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
235-217 A Columbia MO JFCYMOXAXEY  700J WAVENATION, LLC 521   2025-09-06   
235-217 0 Columbia MO JFCYMOXAXEY  700J WAVENATION, LLC 521   2025-09-06   
235-217 8 Columbia MO CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2025-11-24   
235-217 9 Columbia MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 521   2026-08-08   

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

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