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 6:28:42 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 |
|---|---|---|
| 203-600 | Meriden, CT | Metropcs, Inc. |
| 203-601 | Trumbull, CT | Teleport Communications America, Llc - Ct |
| 203-602 | Stamford, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-603 | New Haven, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-604 | Norwalk, CT | Level 3 Communications, Llc - Ct |
| 203-605 | New Haven, CT | Cellco Partnership Dba Verizon Wireless - Ct |
| 203-606 | New Haven, CT | Omnipoint Communications, Inc. - Ct |
| 203-607 | Stamford, CT | Mcimetro Access Transmission Services Llc - Ct |
| 203-608 | Meriden, CT | Paetec Communications, Llc - Ct |
| 203-609 | Stamford, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-610 | Bridgeport, CT | Conversent Communications Of Connecticut, Llc - Ct |
| 203-611 | Connecticut | |
| 203-612 | Bridgeport, CT | Global Crossing Local Services, Inc. - Ct |
| 203-613 | Norwalk, CT | Sprint Spectrum, L.p. |
| 203-614 | Stamford, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-615 | Bridgeport, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-616 | Danbury, CT | Global Crossing Local Services, Inc. - Ct |
| 203-617 | Danbury, CT | Sprint Spectrum, L.p. |
| 203-618 | Greenwich, CT | Verizon New York, Inc. |
| 203-619 | New Haven, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-620 | Darien, CT | Mcimetro Access Transmission Services Llc - Ct |
| 203-621 | Darien, CT | Paetec Communications, Llc - Ct |
| 203-622 | Greenwich, CT | Verizon New York, Inc. |
| 203-623 | New Haven, CT | Cellco Partnership Dba Verizon Wireless - Ct |
| 203-624 | New Haven, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-625 | Greenwich, CT | Verizon New York, Inc. |
| 203-626 | Wallingford, CT | At&t - Local |
| 203-627 | New Haven, CT | Sprint Spectrum, L.p. |
| 203-628 | Danbury, CT | Cablevision Lightpath, Inc. - Ct |
| 203-629 | Greenwich, CT | Verizon New York, Inc. |
| 203-630 | Meriden, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-631 | Meriden, CT | New Cingular Wireless Pcs, Llc - Dc |
| 203-632 | Naugatuck, CT | Choice One Communications, Inc. - Ct |
| 203-633 | Wolcott, CT | Level 3 Communications, Llc - Ct |
| 203-634 | Meriden, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-635 | Westport, CT | Level 3 Communications, Llc - Ct |
| 203-636 | Darien, CT | Mcimetro Access Transmission Services Llc - Ct |
| 203-637 | Old Greenwich, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-638 | Trumbull, CT | Paetec Communications, Llc - Ct |
| 203-639 | Meriden, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-640 | New Haven, CT | New Cingular Wireless Pcs, Llc - Dc |
| 203-641 | New Haven, CT | Cellco Partnership Dba Verizon Wireless - Ct |
| 203-642 | Norwalk, CT | Mcimetro Access Transmission Services Llc - Ct |
| 203-643 | Branford, CT | Choice One Communications, Inc. - Ct |
| 203-644 | Norwalk, CT | Cellco Partnership Dba Verizon Wireless - Ct |
| 203-645 | New Haven, CT | New Cingular Wireless Pcs, Llc - Dc |
| 203-646 | Branford, CT | Global Crossing Local Services, Inc. - Ct |
| 203-647 | Milford, CT | Paetec Communications, Llc - Ct |
| 203-648 | Danbury, CT | Level 3 Communications, Llc - Ct |
| 203-649 | Cheshire, CT | Paetec Communications, Llc - Ct |
| 203-650 | Bridgeport, CT | Sprint Spectrum, L.p. |
| 203-651 | Cheshire, CT | Choice One Communications, Inc. - Ct |
| 203-652 | New Canaan, CT | Paetec Communications, Llc - Ct |
| 203-653 | Stamford, CT | Paetec Communications, Llc - Ct |
| 203-654 | New Haven, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-655 | Darien, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-656 | Darien, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-657 | New Haven, CT | American Messaging Services, Llc |
| 203-658 | Stamford, CT | Teleport Communications America, Llc - Ct |
| 203-659 | Fairfield, CT | Paetec Communications, Llc - Ct |
| 203-660 | Byram, CT | Global Crossing Local Services, Inc. - Ct |
| 203-661 | Greenwich, CT | Verizon New York, Inc. |
| 203-662 | Darien, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-663 | Norwalk, CT | Paetec Communications, Llc - Ct |
| 203-664 | Redding, CT | Cablevision Lightpath, Inc. - Ct |
| 203-665 | Wilton, CT | Paetec Communications, Llc - Ct |
| 203-666 | Bridgeport, CT | Level 3 Communications, Llc - Ct |
| 203-667 | Stamford, CT | Sprint Spectrum, L.p. |
| 203-668 | New Haven, CT | Sprint Spectrum, L.p. |
| 203-669 | Darien, CT | Global Crossing Local Services, Inc. - Ct |
| 203-670 | Fairfield, CT | Omnipoint Communications, Inc. - Ct |
| 203-671 | New Haven, CT | Cellco Partnership Dba Verizon Wireless - Ct |
| 203-672 | New Haven, CT | Paetec Communications, Llc - Ct |
| 203-673 | Bridgeport, CT | At&t - Local |
| 203-674 | Stamford, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-675 | New Haven, CT | Sprint Spectrum, L.p. |
| 203-676 | New Haven, CT | Sprint Spectrum, L.p. |
| 203-677 | Wallingford, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-678 | Wallingford, CT | Paetec Communications, Llc - Ct |
| 203-679 | Wallingford, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-680 | New Haven, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-681 | Byram, CT | Verizon New York, Inc. |
| 203-682 | Westport, CT | Paetec Communications, Llc - Ct |
| 203-683 | Bridgeport, CT | Paetec Communications, Llc - Ct |
| 203-684 | New Haven, CT | Metropcs, Inc. |
| 203-685 | Bridgeport, CT | Omnipoint Communications, Inc. - Ct |
| 203-686 | Meriden, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-687 | New Haven, CT | Level 3 Communications, Llc - Ct |
| 203-688 | New Haven, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-689 | Guilford, CT | At&t - Local |
| 203-690 | Bridgeport, CT | Omnipoint Communications, Inc. - Ct |
| 203-691 | New Haven, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-692 | Fairfield, CT | Global Crossing Local Services, Inc. - Ct |
| 203-693 | Milford, CT | Cablevision Lightpath, Inc. - Ct |
| 203-694 | Meriden, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-695 | Waterbury, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-696 | Bridgeport, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-697 | Wallingford, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-698 | Old Greenwich, CT | Southern New England Telco Dba Frontier Comm Of Ct |
| 203-699 | Cheshire, CT | Southern New England Telco Dba Frontier Comm Of Ct |
December 20, 2024