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: 745

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-745 A New Haven CT NWHNCT02GT0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-745 0 New Haven CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-05-07   
203-745 1 New Haven CT NWHNCT02GT0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-745 2 New Haven CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-05-07   
203-745 3 New Haven CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2006-06-03   
203-745 4 New Haven CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2006-06-03   
203-745 5 New Haven CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2006-06-03   
203-745 6 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2007-09-21   
203-745 7 New Haven CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-12-28   
203-745 8 New Haven CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-12-28   
203-745 9 New Haven CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2008-07-07   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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