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: 850

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-850 A New Haven CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-850 0 New Haven CT   5562 METROPCS, INC. 920   2008-11-17   
203-850 1 New Haven CT   5562 METROPCS, INC. 920   2008-11-17   
203-850 2 New Haven CT   5562 METROPCS, INC. 920   2008-11-17   
203-850 3 New Haven CT   5562 METROPCS, INC. 920   2008-11-17   
203-850 4 New Haven CT   5562 METROPCS, INC. 920   2008-11-17   
203-850 5 New Haven CT   5562 METROPCS, INC. 920   2013-07-08   
203-850 6 New Haven CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2012-09-06   
203-850 7 New Haven CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-04-19   
203-850 8 New Haven CT   5562 METROPCS, INC. 920   2008-11-17   
203-850 9 New Haven CT   5562 METROPCS, INC. 920   2008-11-17   

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

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