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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-613 A Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2024-02-09   
203-614 A Stamford CT SMFRCT02DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-615 A Bridgeport CT BRPTCT01DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-616 A Danbury CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-617 A Danbury CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-618 A Greenwich CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-619 A New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-620 A Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-621 A Darien CT   829J PAETEC ITEL, LLC 920      
203-622 A Greenwich CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-623 A New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-624 A New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-625 A Greenwich CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-626 A Wallingford CT NWHNCT02X5X  7421 AT&T - LOCAL 920      
203-627 A New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2024-02-09   
203-628 A Danbury CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-629 A Greenwich CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-630 A Meriden CT MRDNCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-631 A Meriden CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-632 A Naugatuck CT   829J PAETEC ITEL, LLC 920      
203-633 A Wolcott CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-634 A Meriden CT MRDNCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-635 A Westport CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-636 A Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-637 A Old Greenwich CT OGNWCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-638 A Trumbull CT   829J PAETEC ITEL, LLC 920      
203-639 A Meriden CT MRDNCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-640 A New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-641 A New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-642 A Norwalk CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-643 A Branford CT   829J PAETEC ITEL, LLC 920      
203-644 A Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-645 A New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-646 A Branford CT   639C ONVOY, LLC - CT 920      
203-647 A Milford CT   829J PAETEC ITEL, LLC 920      
203-648 A Danbury CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-649 A Cheshire CT   829J PAETEC ITEL, LLC 920      
203-650 A Bridgeport CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-651 A Cheshire CT   829J PAETEC ITEL, LLC 920      
203-652 A New Canaan CT   829J PAETEC ITEL, LLC 920      
203-653 A Stamford CT   829J PAETEC ITEL, LLC 920      
203-654 A New Haven CT NHVNCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-655 A Darien CT DARNCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-656 A Darien CT DARNCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-657 A New Haven CT HRFRCT0379Z  9748 AMERICAN MESSAGING SERVICES, LLC 920      
203-658 A Stamford CT SMFRCTCTDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-659 A Fairfield CT   829J PAETEC ITEL, LLC 920      
203-660 A Byram CT   639C ONVOY, LLC - CT 132      
203-661 A Greenwich CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-662 A Darien CT DARNCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-663 A Norwalk CT   829J PAETEC ITEL, LLC 920      
203-664 A Redding CT NRWLCT02XMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-665 A Wilton CT   829J PAETEC ITEL, LLC 920      
203-666 A Bridgeport CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-667 A Stamford CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-668 A New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2024-02-09   
203-669 A Darien CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2025-04-26   
203-670 A Fairfield CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-671 A New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-672 A New Haven CT   829J PAETEC ITEL, LLC 920      
203-673 A Bridgeport CT NWHNCT02X5X  7421 AT&T - LOCAL 920      
203-674 A Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-675 A New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2024-02-09   
203-676 A New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2024-02-09   
203-677 A Wallingford CT WLFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-678 A Wallingford CT   829J PAETEC ITEL, LLC 920      
203-679 A Wallingford CT WLFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-680 A New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-681 A Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-682 A Westport CT   829J PAETEC ITEL, LLC 920      
203-683 A Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-684 A New Haven CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-685 A Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-686 A Meriden CT MRDNCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-687 A New Haven CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-688 A New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-689 A Guilford CT NWHNCT02X5X  7421 AT&T - LOCAL 920      
203-690 A Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-691 A New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-692 A Fairfield CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-693 A Milford CT NRWLCT02XMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-694 A Meriden CT MRDNCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-695 A Waterbury CT MDLBCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-696 A Bridgeport CT BRPTCT01DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-697 A Wallingford CT WLFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-698 A Old Greenwich CT OGNWCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-699 A Cheshire CT CHSHCT01DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-701 A Milford CT NWHNCT02X5X  7421 AT&T - LOCAL 920      
203-702 A Danbury CT   829J PAETEC ITEL, LLC 920      
203-703 A Stamford CT SMFRCT02DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-704 A Wolcott CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-705 A Stamford CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-706 A Waterbury CT   829J PAETEC ITEL, LLC 920      
203-707 A Waterbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-708 A Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-709 A Waterbury CT WTRBCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-710 A New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-712 A Huntington CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-713 A Milford CT   639C ONVOY, LLC - CT 920      
203-714 A Naugatuck CT   624H ONVOY SPECTRUM, LLC 920      

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Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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