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: 669

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-669 A Darien CT SMFRCTQI9MD  3493 GLOBAL CROSSING LOCAL SERVICES, INC. - CT 920      
203-669 0 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-12-22   
203-669 1 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2004-03-15   
203-669 2 Darien CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-669 3 Darien CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2021-03-12   
203-669 4 Darien CT NWHNCT030MD  3722 CONVERSENT COMMUNICATIONS OF CONNECTICUT, LLC - CT 920   2006-03-04   
203-669 5 Darien CT SMFRCT0162Z  3863 CTC COMMUNICATIONS CORP. - CT 920   2006-07-09   
203-669 6 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-08-25   
203-669 7 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-08-25   
203-669 8 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-08-25   
203-669 9 Darien CT SMFRCTQI9MD  3493 GLOBAL CROSSING LOCAL SERVICES, INC. - CT 920      

Last updated: Wed, 07 Feb 2024 04:12:25 UTC

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