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 5:59:56 AM on December 22, 2024.
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 |
December 20, 2024