Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: SMFRCTDSDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
203-277 A Old Greenwich CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-280 A Darien CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-293 A Westport CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-295 A Norwalk CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-296 A Bridgeport CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-297 A Danbury CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-307 A Fairfield CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-310 A New Canaan CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-320 A Darien CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-369 A Old Greenwich CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-388 A Stamford CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-391 A Stamford CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-399 A Stamford CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-428 A Stamford CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-429 A Westport CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-448 A Danbury CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-455 A Bridgeport CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-480 A Fairfield CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-566 A Stamford CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-607 A Stamford CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-620 A Darien CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-636 A Darien CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-642 A Norwalk CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-705 A Stamford CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-719 A Stamford CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-818 A Norwalk CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-827 A Old Greenwich CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-844 A Fairfield CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-897 A Stamford CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-898 A Darien CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-920 A New Canaan CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-923 A Bridgeport CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-955 A Fairfield CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-986 A Old Greenwich CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-990 A Old Greenwich CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-995 A Bridgeport CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
475-328 A Darien CT 7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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