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: 539

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-539 A Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-539 0 Stamford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2008-11-29   
203-539 1 Stamford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2008-11-29   
203-539 2 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-10-01   
203-539 3 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-539 4 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-539 5 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-539 6 Stamford CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-12-21   
203-539 7 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-539 8 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-539 9 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2011-04-15   

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

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