Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Last updated: Sat, 09 May 2015 19:26:05 UTC

NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date Map
203-584 A New Haven CT WLFRCTAICM3  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT [link] 920     map
203-584 0 New Haven CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT [link] 920 2010-09-06     
203-584 1 New Haven CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT [link] 920 2010-09-09     
203-584 2 New Haven CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT [link] 920 2010-10-02     
203-584 3 New Haven CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT [link] 920 2010-11-08     
203-584 4 New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC [link] 920 2010-10-26     
203-584 5 New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC [link] 920 2010-10-26     
203-584 6 New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC [link] 920 2010-10-26     
203-584 7 New Haven CT   199F BANDWIDTH.COM CLEC, LLC - CT [link] 920 2010-12-04     
203-584 8 New Haven CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT [link] 920 2010-12-04     
203-584 9 New Haven CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT [link] 920 2010-12-09     

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