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Area Code 203

There are 800 phone number prefixes within area code 203. Additionally, there are more than 2,000 phone numbers in this area code that have received at least one user report. The location of calls from area code 203 is Connecticut, USA. Most numbers in this area code are in US Eastern time, where the time is currently 12:57:28 PM on March 28, 2025.
 
Choose a phone number from the list below to browse user reports for . You can also use the search box above to search for user reports about any phone number, or to file a report about any phone number.

Prefix City / State Primary Telco
203-700 Connecticut
203-701 Milford, CT At&t - Local
203-702 Danbury, CT Paetec Communications, Llc - Ct
203-703 Stamford, CT Southern New England Telco Dba Frontier Comm Of Ct
203-704 Wolcott, CT Level 3 Communications, Llc - Ct
203-705 Stamford, CT Mcimetro Access Transmission Services Llc - Ct
203-706 Waterbury, CT Ctc Communications Corp. - Ct
203-707 Waterbury, CT Cellco Partnership Dba Verizon Wireless - Ct
203-708 Stamford, CT Southern New England Telco Dba Frontier Comm Of Ct
203-709 Waterbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-710 New Haven, CT New Cingular Wireless Pcs, Llc - Dc
203-711 Connecticut
203-712 Huntington, CT Global Crossing Local Services, Inc. - Ct
203-713 Milford, CT Global Crossing Local Services, Inc. - Ct
203-714 Naugatuck, CT Global Crossing Local Services, Inc. - Ct
203-715 Meriden, CT Omnipoint Communications, Inc. - Ct
203-716 New Canaan, CT Global Crossing Local Services, Inc. - Ct
203-717 Greenwich, CT Cablevision Lightpath, Inc. - Ct
203-718 Cheshire, CT Global Crossing Local Services, Inc. - Ct
203-719 Stamford, CT Southern New England Telco Dba Frontier Comm Of Ct
203-720 Naugatuck, CT Southern New England Telco Dba Frontier Comm Of Ct
203-721 Waterbury, CT At&t - Local
203-722 Norwalk, CT New Cingular Wireless Pcs, Llc - Dc
203-723 Naugatuck, CT Southern New England Telco Dba Frontier Comm Of Ct
203-724 Stamford, CT Choice One Communications, Inc. - Ct
203-725 Waterbury, CT Comcast Ip Phone, Llc
203-726 Bridgeport, CT Cellco Partnership Dba Verizon Wireless - Ct
203-727 Bridgeport, CT Sprint Spectrum, L.p.
203-728 Stamford, CT Southern New England Telco Dba Frontier Comm Of Ct
203-729 Naugatuck, CT Southern New England Telco Dba Frontier Comm Of Ct
203-730 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-731 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-732 Ansonia-derby, CT Southern New England Telco Dba Frontier Comm Of Ct
203-733 Danbury, CT Cellco Partnership Dba Verizon Wireless - Ct
203-734 Ansonia-derby, CT Southern New England Telco Dba Frontier Comm Of Ct
203-735 Ansonia-derby, CT Southern New England Telco Dba Frontier Comm Of Ct
203-736 Ansonia-derby, CT Southern New England Telco Dba Frontier Comm Of Ct
203-737 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-738 Guilford, CT Choice One Communications, Inc. - Ct
203-739 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-740 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-741 Wallingford, CT Southern New England Telco Dba Frontier Comm Of Ct
203-742 Greenwich, CT Mcimetro Access Transmission Services Llc - Ct
203-743 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-744 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-745 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-746 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-747 New Haven, CT Teleport Communications America, Llc - Ct
203-748 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-749 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-750 Norwalk, CT Southern New England Telco Dba Frontier Comm Of Ct
203-751 Ansonia-derby, CT Southern New England Telco Dba Frontier Comm Of Ct
203-752 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-753 Waterbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-754 Waterbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-755 Waterbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-756 Waterbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-757 Waterbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-758 Waterbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-759 Waterbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-760 Bridgeport, CT Peerless Network Of Connecticut, Llc - Ct
203-761 Wilton, CT Southern New England Telco Dba Frontier Comm Of Ct
203-762 Wilton, CT Southern New England Telco Dba Frontier Comm Of Ct
203-763 Fairfield, CT Level 3 Communications, Llc - Ct
203-764 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-765 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-766 New Haven, CT American Messaging Services, Llc
203-767 Bridgeport, CT Cellco Partnership Dba Verizon Wireless - Ct
203-768 Waterbury, CT Omnipoint Communications, Inc. - Ct
203-769 Greenwich, CT Verizon New York, Inc.
203-770 Danbury, CT New Cingular Wireless Pcs, Llc - Dc
203-771 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-772 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-773 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-774 Wallingford, CT Choice One Communications, Inc. - Ct
203-775 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-776 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-777 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-778 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-779 Madison, CT Choice One Communications, Inc. - Ct
203-780 New Haven, CT Peerless Network Of Connecticut, Llc - Ct
203-781 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-782 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-783 Milford, CT Southern New England Telco Dba Frontier Comm Of Ct
203-784 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-785 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-786 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-787 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-788 Danbury, CT New Cingular Wireless Pcs, Llc - Dc
203-789 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-790 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-791 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-792 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-793 Wallingford, CT Global Crossing Local Services, Inc. - Ct
203-794 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-795 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct
203-796 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-797 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-798 Danbury, CT Southern New England Telco Dba Frontier Comm Of Ct
203-799 New Haven, CT Southern New England Telco Dba Frontier Comm Of Ct

Recent Call Explore
User Reports

866-200-3522
March 26, 2025
Katie Smith - Independent Courier.... Says call is specifically for me and she has documents with my ...
586-204-2819
March 25, 2025
Tried to get my personal information and was acting like the local sheriff. Please look into this
214-935-0853
March 22, 2025
Person calls fake crying in Creole and then you will hear someone else a man say "OK hang up.c
916-302-2123
March 20, 2025
Weirdo called and left breathing sounds o answering machne
210-399-3865
March 18, 2025
Called me to say they have trying to serve me legal papers for the second time and gave a number wit ...