Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX: 868

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-868 A New Haven CT NWHNCT02X5X  7421 AT&T - LOCAL 920      
203-868 0 New Haven CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-07-03   
203-868 1 New Haven CT   5562 METROPCS, INC. 920   2003-10-11   
203-868 2 New Haven CT   5562 METROPCS, INC. 920   2003-10-11   
203-868 3 New Haven CT   7421 AT&T - LOCAL 920      
203-868 4 New Haven CT   5562 METROPCS, INC. 920   2003-10-11   
203-868 5 New Haven CT   5562 METROPCS, INC. 920   2004-06-18   
203-868 6 New Haven CT   5562 METROPCS, INC. 920   2004-07-04   
203-868 7 New Haven CT   5562 METROPCS, INC. 920   2005-03-11   
203-868 8 New Haven CT   5562 METROPCS, INC. 920   2005-03-11   
203-868 9 New Haven CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2007-09-02   

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

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