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: 508

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-508 A New Haven CT   829J PAETEC ITEL, LLC 920      
203-508 0 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-06-13   
203-508 1 New Haven CT NWHNCT030MD  3863 CTC COMMUNICATIONS CORP. - CT 920   2004-04-04   
203-508 2 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-07-16   
203-508 3 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-07-16   
203-508 4 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-05-29   
203-508 5 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-01-01   
203-508 6 New Haven CT   829J PAETEC ITEL, LLC 920   2004-07-22   
203-508 7 New Haven CT   829J PAETEC ITEL, LLC 920   2004-07-22   
203-508 8 New Haven CT   829J PAETEC ITEL, LLC 920   2004-07-22   
203-508 9 New Haven CT   829J PAETEC ITEL, LLC 920   2004-07-22   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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