Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 636 [Rate centres in NPA 636] [Dial plan for NPA 636]

NXX: 233

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-233 A St Charles MO STLTMOBOAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520      
636-233 0 St Charles MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520      
636-233 1 St Charles MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2004-03-02   
636-233 2 St Charles MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2004-03-02   
636-233 3 St Charles MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2004-03-02   
636-233 4 St Charles MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2005-06-17   
636-233 5 St Charles MO   6529 T-MOBILE USA, INC. 520   2005-08-21   
636-233 6 St Charles MO   6529 T-MOBILE USA, INC. 520   2005-12-10   
636-233 7 St Charles MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2005-12-18   
636-233 8 St Charles MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2005-12-18   
636-233 9 St Charles MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2008-12-11   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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