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: 559

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-559 A Darien CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-559 0 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2004-02-02   
203-559 1 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2004-02-02   
203-559 2 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2007-04-11   
203-559 3 Darien CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-559 4 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2003-09-08   
203-559 5 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2003-09-08   
203-559 6 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2003-05-28   
203-559 7 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2003-05-28   
203-559 8 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2002-12-16   
203-559 9 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2002-12-16   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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