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: 361

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-361 A New Haven CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-361 0 New Haven CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-02-17   
203-361 1 New Haven CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-02-17   
203-361 2 New Haven CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-02-17   
203-361 3 New Haven CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2011-02-06   
203-361 4 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2011-02-08   
203-361 5 New Haven CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-02-17   
203-361 6 New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-02-08   
203-361 7 New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-02-08   
203-361 8 New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-02-08   
203-361 9 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-10-19   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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