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Darien, CT

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
203-656 A DARNCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-662 A DARNCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-669 A   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2025-04-26   
203-669 0   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-12-22   
203-669 1   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2004-03-15   
203-669 2   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-669 3   624H ONVOY SPECTRUM, LLC 920   2021-03-12   
203-669 4   829J PAETEC ITEL, LLC 920   2006-03-04   
203-669 5   829J PAETEC ITEL, LLC 920   2006-07-09   
203-669 6   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-08-25   
203-669 7   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-08-25   
203-669 8   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-08-25   
203-669 9   145J TERRA NOVA TELECOM INC. 920   2025-04-28   
203-875 A NWHNCT02X5X  7421 AT&T - LOCAL 920      
203-875 0   539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-03   
203-875 1   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-11-12   
203-875 2   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-11-12   
203-875 3   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-11-12   
203-875 4   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-11-12   
203-875 5   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-12-22   
203-875 6   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-12-22   
203-875 7   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-12-22   
203-875 8   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-12-22   
203-875 9   7421 AT&T - LOCAL 920      
203-898 A SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-898 0   5562 METROPCS, INC. 920   2007-07-13   
203-898 1   5562 METROPCS, INC. 920   2006-08-29   
203-898 2   5562 METROPCS, INC. 920   2006-08-29   
203-898 3   5562 METROPCS, INC. 920   2005-11-04   
203-898 4   5562 METROPCS, INC. 920   2005-10-03   
203-898 5   5562 METROPCS, INC. 920   2005-04-30   
203-898 6   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2005-03-24   
203-898 7   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2005-03-24   
203-898 8   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2005-03-24   
203-898 9   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2005-03-24   
475-259 A BLFDCTAP2MD  5562 METROPCS, INC. 920      
475-259 0   639C ONVOY, LLC - CT 920   2017-12-09   
475-259 1   539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2018-11-04   
475-259 2   639C ONVOY, LLC - CT 920   2018-10-31   
475-259 3   639C ONVOY, LLC - CT 920   2018-10-31   
475-259 4   425J CSC WIRELESS, LLC 920   2019-12-20   
475-259 5   5562 METROPCS, INC. 920   2019-02-01   
475-259 6   425J CSC WIRELESS, LLC 920   2019-12-20   
475-259 7   639C ONVOY, LLC - CT 920   2019-03-29   
475-259 8   639C ONVOY, LLC - CT 920   2019-03-29   
475-259 9   5562 METROPCS, INC. 920   2017-11-09   
475-264 A HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-264 0   539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2020-04-10   
475-264 1   624H ONVOY SPECTRUM, LLC 920   2022-01-17   
475-264 2   639C ONVOY, LLC - CT 920   2020-05-24   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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