Area Code 203 Details

203 is the area code that covers the southwest of Connecticut, including Fairfield county, New Haven, and part of Litchfield. It overlays area code 475, which will go into effect December 2009. Beginning in November, 2009, all callers in Connecticut must use 10-digit dialing.

AreaCode/Prefix (Exchange) Location
203-200 New Haven, CT
203-201 New Haven, CT
203-202 Darien, CT
203-204 Guilford, CT
203-205 Danbury, CT
203-206 Waterbury, CT
203-207 Danbury, CT
203-208 Branford, CT
203-209 Bridgeport, CT
203-210 Wilton, CT
203-212 Bridgeport, CT
203-213 Meriden, CT
203-214 New Haven, CT
203-215 New Haven, CT
203-216 Westport, CT
203-217 Waterbury, CT
203-218 Bridgeport, CT
203-219 Stamford, CT
203-220 Trumbull, CT
203-221 Westport, CT
203-222 Westport, CT
203-223 Stamford, CT
203-224 Bridgeport, CT
203-226 Westport, CT
203-227 Westport, CT
203-228 Waterbury, CT
203-229 Norwalk, CT
203-230 New Haven, CT
203-232 Waterbury, CT
203-233 Waterbury, CT
203-234 New Haven, CT
203-235 Meriden, CT
203-236 Waterbury, CT
203-237 Meriden, CT
203-238 Meriden, CT
203-239 New Haven, CT
203-240 Danbury, CT
203-241 Danbury, CT
203-243 Bridgeport, CT
203-244 Ridgefield, CT
203-245 Madison, CT
203-246 Norwalk, CT
203-247 Norwalk, CT
203-248 New Haven, CT
203-249 Stamford, CT
203-250 Cheshire, CT
203-251 Stamford, CT
203-252 Stamford, CT
203-253 Stamford, CT
203-254 Fairfield, CT
203-255 Fairfield, CT
203-256 Fairfield, CT
203-257 Bridgeport, CT
203-258 Bridgeport, CT
203-259 Fairfield, CT
203-260 Bridgeport, CT
203-261 Trumbull, CT
203-262 Southbury, CT
203-263 Woodbury, CT
203-264 Southbury, CT
203-265 Wallingford, CT
203-266 Woodbury, CT
203-267 Southbury, CT
203-268 Trumbull, CT
203-269 Wallingford, CT
203-270 Newtown, CT
203-271 Cheshire, CT
203-272 Cheshire, CT
203-273 Stamford, CT
203-274 Stamford, CT
203-275 Bridgeport, CT
203-276 Stamford, CT
203-277 Old Greenwich, CT
203-279 Bridgeport, CT
203-280 Darien, CT
203-281 New Haven, CT
203-282 Stamford, CT
203-283 Milford, CT
203-284 Wallingford, CT
203-285 New Haven, CT
203-286 Norwalk, CT
203-287 New Haven, CT
203-288 New Haven, CT
203-289 Danbury, CT
203-290 Bridgeport, CT
203-291 Westport, CT
203-292 Fairfield, CT
203-293 Stamford, CT
203-294 Wallingford, CT
203-295 Stamford, CT
203-296 Bridgeport, CT
203-297 Danbury, CT
203-298 New Haven, CT
203-299 Norwalk, CT
203-300 Danbury, CT
203-301 Milford, CT
203-302 Greenwich, CT
203-303 Wallingford, CT
203-304 Newtown, CT
203-306 Milford, CT
203-307 Fairfield, CT
203-309 New Haven, CT
203-310 New Canaan, CT
203-312 Danbury, CT
203-313 Danbury, CT
203-314 New Haven, CT
203-315 Branford, CT
203-316 Stamford, CT
203-317 Meriden, CT
203-318 Madison, CT
203-319 Fairfield, CT
203-320 Darien, CT
203-321 Stamford, CT
203-322 Stamford, CT
203-323 Stamford, CT
203-324 Stamford, CT
203-325 Stamford, CT
203-326 Stamford, CT
203-327 Stamford, CT
203-328 Stamford, CT
203-329 Stamford, CT
203-330 Bridgeport, CT
203-331 Bridgeport, CT
203-332 Bridgeport, CT
203-333 Bridgeport, CT
203-334 Bridgeport, CT
203-335 Bridgeport, CT
203-336 Bridgeport, CT
203-337 Bridgeport, CT
203-338 Bridgeport, CT
203-339 Bridgeport, CT
203-340 Greenwich, CT
203-341 Westport, CT
203-342 Bridgeport, CT
203-344 Old Greenwich, CT
203-345 Bridgeport, CT
203-346 Waterbury, CT
203-348 Stamford, CT
203-349 Westport, CT
203-350 Madison, CT
203-351 Stamford, CT
203-352 Stamford, CT
203-353 Stamford, CT
203-354 Norwalk, CT
203-355 Stamford, CT
203-356 Stamford, CT
203-357 Stamford, CT
203-358 Stamford, CT
203-359 Stamford, CT
203-360 Bridgeport, CT
203-361 New Haven, CT
203-362 Bridgeport, CT
203-363 Stamford, CT
203-364 Newtown, CT
203-365 Bridgeport, CT
203-366 Bridgeport, CT
203-367 Bridgeport, CT
203-368 Bridgeport, CT
203-369 Old Greenwich, CT
203-370 New Haven, CT
203-371 Bridgeport, CT
203-372 Bridgeport, CT
203-373 Bridgeport, CT
203-374 Bridgeport, CT
203-375 Bridgeport, CT
203-376 New Haven, CT
203-377 Bridgeport, CT
203-378 Bridgeport, CT
203-379 Meriden, CT
203-380 Bridgeport, CT
203-381 Bridgeport, CT
203-382 Bridgeport, CT
203-383 Bridgeport, CT
203-384 Bridgeport, CT
203-385 Bridgeport, CT
203-386 Bridgeport, CT
203-387 New Haven, CT
203-388 Stamford, CT
203-389 New Haven, CT
203-390 New Haven, CT
203-391 Stamford, CT
203-392 New Haven, CT
203-393 New Haven, CT
203-394 Bridgeport, CT
203-395 Bridgeport, CT
203-396 Bridgeport, CT
203-397 New Haven, CT
203-398 Norwalk, CT
203-399 Stamford, CT
203-400 Trumbull, CT
203-401 New Haven, CT
203-403 Ridgefield, CT
203-404 New Haven, CT
203-405 Woodbury, CT
203-406 Stamford, CT
203-407 New Haven, CT
203-408 Redding, CT
203-409 Old Greenwich, CT
203-410 New Haven, CT
203-412 New Haven, CT
203-413 Greenwich, CT
203-414 Bridgeport, CT
203-415 New Haven, CT
203-416 Bridgeport, CT
203-417 Danbury, CT
203-418 Fairfield, CT
203-419 Waterbury, CT
203-420 Meriden, CT
203-421 Madison, CT
203-422 Greenwich, CT
203-423 Wilton, CT
203-424 Danbury, CT
203-425 Stamford, CT
203-426 Newtown, CT
203-427 Meriden, CT
203-428 Stamford, CT
203-429 Stamford, CT
203-430 New Haven, CT
203-431 Ridgefield, CT
203-432 New Haven, CT
203-433 Branford, CT
203-434 Norwalk, CT
203-435 New Haven, CT
203-436 New Haven, CT
203-437 Waterbury, CT
203-438 Ridgefield, CT
203-439 Cheshire, CT
203-440 Meriden, CT
203-441 Wolcott, CT
203-442 New Canaan, CT
203-443 Meriden, CT
203-444 New Haven, CT
203-445 Trumbull, CT
203-448 Danbury, CT
203-449 Bridgeport, CT
203-450 Bridgeport, CT
203-451 Westport, CT
203-452 Trumbull, CT
203-453 Guilford, CT
203-454 Westport, CT
203-455 Bridgeport, CT
203-456 Danbury, CT
203-457 Guilford, CT
203-458 Guilford, CT
203-459 Trumbull, CT
203-460 Danbury, CT
203-461 Stamford, CT
203-462 Stamford, CT
203-463 Seymour, CT
203-464 New Haven, CT
203-465 Waterbury, CT
203-466 New Haven, CT
203-467 New Haven, CT
203-468 New Haven, CT
203-469 New Haven, CT
203-470 Danbury, CT
203-477 New Haven, CT
203-479 New Haven, CT
203-480 Fairfield, CT
203-481 Branford, CT
203-482 Danbury, CT
203-483 Branford, CT
203-484 Northford, CT
203-485 Greenwich, CT
203-486 Southbury, CT
203-487 Stamford, CT
203-488 Branford, CT
203-489 Greenwich, CT
203-490 Naugatuck, CT
203-491 Newtown, CT
203-492 New Haven, CT
203-493 Redding, CT
203-494 New Haven, CT
203-495 New Haven, CT
203-496 Greenwich, CT
203-497 New Haven, CT
203-498 New Haven, CT
203-499 New Haven, CT
203-500 New Haven, CT
203-501 Danbury, CT
203-502 Bridgeport, CT
203-503 New Haven, CT
203-504 Stamford, CT
203-505 Norwalk, CT
203-506 New Haven, CT
203-507 New Haven, CT
203-508 New Haven, CT
203-509 Waterbury, CT
203-510 Waterbury, CT
203-512 Danbury, CT
203-514 Meriden, CT
203-515 Norwalk, CT
203-517 Stamford, CT
203-518 Waterbury, CT
203-519 Waterbury, CT
203-520 Bridgeport, CT
203-521 Bridgeport, CT
203-522 Bridgeport, CT
203-523 Norwalk, CT
203-524 Stamford, CT
203-525 Waterbury, CT
203-526 Bridgeport, CT
203-527 Waterbury, CT
203-528 Waterbury, CT
203-529 Wilton, CT
203-530 New Haven, CT
203-533 Guilford, CT
203-534 Bridgeport, CT
203-535 New Haven, CT
203-536 Stamford, CT
203-537 Meriden, CT
203-539 Stamford, CT
203-540 Bridgeport, CT
203-541 Stamford, CT
203-542 Greenwich, CT
203-543 Bridgeport, CT
203-544 Redding, CT
203-545 Bridgeport, CT
203-546 Danbury, CT
203-547 Stamford, CT
203-548 Stamford, CT
203-549 Bridgeport, CT
203-550 Stamford, CT
203-551 Bridgeport, CT
203-553 New Haven, CT
203-554 Stamford, CT
203-556 Bridgeport, CT
203-557 Westport, CT
203-558 Waterbury, CT
203-559 Darien, CT
203-560 Waterbury, CT
203-561 Stamford, CT
203-562 New Haven, CT
203-563 Wilton, CT
203-564 Stamford, CT
203-565 Waterbury, CT
203-566 Stamford, CT
203-568 Waterbury, CT
203-569 Stamford, CT
203-570 Stamford, CT
203-571 Westport, CT
203-572 Bridgeport, CT
203-573 Waterbury, CT
203-574 Waterbury, CT
203-575 Waterbury, CT
203-576 Bridgeport, CT
203-577 Waterbury, CT
203-578 Waterbury, CT
203-579 Bridgeport, CT
203-581 Bridgeport, CT
203-582 New Haven, CT
203-583 Bridgeport, CT
203-584 New Haven, CT
203-585 Stamford, CT
203-586 Woodbury, CT
203-587 Redding, CT
203-588 Stamford, CT
203-589 New Haven, CT
203-590 Trumbull, CT
203-591 Waterbury, CT
203-592 Waterbury, CT
203-593 Norwalk, CT
203-594 New Canaan, CT
203-595 Stamford, CT
203-596 Waterbury, CT
203-597 Waterbury, CT
203-598 Waterbury, CT
203-599 Meriden, CT
203-600 Meriden, CT
203-601 Trumbull, CT
203-602 Stamford, CT
203-603 New Haven, CT
203-604 Stamford, CT
203-605 New Haven, CT
203-606 New Haven, CT
203-607 Stamford, CT
203-608 Meriden, CT
203-609 Stamford, CT
203-610 Bridgeport, CT
203-612 Bridgeport, CT
203-613 Norwalk, CT
203-614 Stamford, CT
203-615 Bridgeport, CT
203-616 Danbury, CT
203-617 Danbury, CT
203-618 Greenwich, CT
203-619 New Haven, CT
203-620 Darien, CT
203-621 Darien, CT
203-622 Greenwich, CT
203-623 New Haven, CT
203-624 New Haven, CT
203-625 Greenwich, CT
203-626 New Haven, CT
203-627 New Haven, CT
203-628 Danbury, CT
203-629 Greenwich, CT
203-630 Meriden, CT
203-631 Meriden, CT
203-632 Naugatuck, CT
203-633 Wolcott, CT
203-634 Meriden, CT
203-635 Stamford, CT
203-636 Darien, CT
203-637 Old Greenwich, CT
203-638 Trumbull, CT
203-639 Meriden, CT
203-640 New Haven, CT
203-641 New Haven, CT
203-642 Stamford, CT
203-643 Branford, CT
203-644 Norwalk, CT
203-645 New Haven, CT
203-646 Branford, CT
203-647 Milford, CT
203-648 Danbury, CT
203-649 Cheshire, CT
203-650 Bridgeport, CT
203-651 Cheshire, CT
203-652 Stamford, CT
203-653 Stamford, CT
203-654 New Haven, CT
203-655 Darien, CT
203-656 Darien, CT
203-657 New Haven, CT
203-658 Stamford, CT
203-659 Fairfield, CT
203-661 Greenwich, CT
203-662 Darien, CT
203-663 Stamford, CT
203-664 Redding, CT
203-665 Stamford, CT
203-666 New Haven, CT
203-667 Stamford, CT
203-668 New Haven, CT
203-669 Darien, CT
203-670 Waterbury, CT
203-671 New Haven, CT
203-672 New Haven, CT
203-673 Bridgeport, CT
203-674 Stamford, CT
203-675 New Haven, CT
203-676 New Haven, CT
203-677 Wallingford, CT
203-678 Wallingford, CT
203-679 Wallingford, CT
203-680 Waterbury, CT
203-682 Stamford, CT
203-683 Bridgeport, CT
203-684 New Haven, CT
203-685 Bridgeport, CT
203-686 Meriden, CT
203-687 New Haven, CT
203-688 New Haven, CT
203-689 New Haven, CT
203-690 Bridgeport, CT
203-691 New Haven, CT
203-692 Fairfield, CT
203-693 Milford, CT
203-694 Meriden, CT
203-695 Waterbury, CT
203-696 Bridgeport, CT
203-697 Wallingford, CT
203-698 Old Greenwich, CT
203-699 Cheshire, CT
203-701 New Haven, CT
203-702 Danbury, CT
203-703 Stamford, CT
203-704 Wolcott, CT
203-705 Stamford, CT
203-706 Waterbury, CT
203-707 Waterbury, CT
203-708 Stamford, CT
203-709 Waterbury, CT
203-710 New Haven, CT
203-713 Milford, CT
203-714 Naugatuck, CT
203-715 Meriden, CT
203-716 Stamford, CT
203-717 Greenwich, CT
203-718 Cheshire, CT
203-719 Stamford, CT
203-720 Naugatuck, CT
203-721 Waterbury, CT
203-722 Norwalk, CT
203-723 Naugatuck, CT
203-724 Stamford, CT
203-725 Waterbury, CT
203-726 Bridgeport, CT
203-727 Bridgeport, CT
203-728 Stamford, CT
203-729 Naugatuck, CT
203-730 Danbury, CT
203-731 Danbury, CT
203-733 Danbury, CT
203-737 New Haven, CT
203-738 Guilford, CT
203-739 Danbury, CT
203-740 Danbury, CT
203-741 Wallingford, CT
203-742 Greenwich, CT
203-743 Danbury, CT
203-744 Danbury, CT
203-745 New Haven, CT
203-746 Danbury, CT
203-747 New Haven, CT
203-748 Danbury, CT
203-749 Danbury, CT
203-750 Norwalk, CT
203-752 New Haven, CT
203-753 Waterbury, CT
203-754 Waterbury, CT
203-755 Waterbury, CT
203-756 Waterbury, CT
203-757 Waterbury, CT
203-758 Waterbury, CT
203-759 Waterbury, CT
203-760 Bridgeport, CT
203-761 Wilton, CT
203-762 Wilton, CT
203-763 Fairfield, CT
203-764 New Haven, CT
203-765 New Haven, CT
203-766 New Haven, CT
203-767 Bridgeport, CT
203-768 Waterbury, CT
203-769 Greenwich, CT
203-770 Danbury, CT
203-771 New Haven, CT
203-772 New Haven, CT
203-773 New Haven, CT
203-774 Wallingford, CT
203-775 Danbury, CT
203-776 New Haven, CT
203-777 New Haven, CT
203-778 Danbury, CT
203-779 Madison, CT
203-780 Waterbury, CT
203-781 New Haven, CT
203-782 New Haven, CT
203-783 Milford, CT
203-784 New Haven, CT
203-785 New Haven, CT
203-786 New Haven, CT
203-787 New Haven, CT
203-788 Danbury, CT
203-789 New Haven, CT
203-790 Danbury, CT
203-791 Danbury, CT
203-792 Danbury, CT
203-793 Wallingford, CT
203-794 Danbury, CT
203-795 New Haven, CT
203-796 Danbury, CT
203-797 Danbury, CT
203-798 Danbury, CT
203-799 New Haven, CT
203-800 New Haven, CT
203-801 New Canaan, CT
203-802 Waterbury, CT
203-803 Norwalk, CT
203-804 New Haven, CT
203-805 Waterbury, CT
203-806 Cheshire, CT
203-807 Norwalk, CT
203-808 Waterbury, CT
203-809 New Haven, CT
203-810 Norwalk, CT
203-812 New Haven, CT
203-814 Bridgeport, CT
203-815 New Haven, CT
203-816 Trumbull, CT
203-817 Stamford, CT
203-818 Norwalk, CT
203-819 Waterbury, CT
203-820 Norwalk, CT
203-821 New Haven, CT
203-822 Norwalk, CT
203-823 New Haven, CT
203-824 New Haven, CT
203-825 Danbury, CT
203-826 Danbury, CT
203-827 Old Greenwich, CT
203-828 Seymour, CT
203-829 Norwalk, CT
203-830 Danbury, CT
203-831 Norwalk, CT
203-832 Stamford, CT
203-833 Norwalk, CT
203-834 Wilton, CT
203-835 Norwalk, CT
203-836 New Haven, CT
203-837 Danbury, CT
203-838 Norwalk, CT
203-839 Norwalk, CT
203-840 Norwalk, CT
203-841 Waterbury, CT
203-842 Stamford, CT
203-843 New Haven, CT
203-844 Fairfield, CT
203-845 Norwalk, CT
203-846 Norwalk, CT
203-847 Norwalk, CT
203-848 New Haven, CT
203-849 Norwalk, CT
203-850 New Haven, CT
203-851 Norwalk, CT
203-852 Norwalk, CT
203-853 Norwalk, CT
203-854 Norwalk, CT
203-855 Norwalk, CT
203-856 Norwalk, CT
203-857 Norwalk, CT
203-858 Norwalk, CT
203-859 New Haven, CT
203-861 Greenwich, CT
203-862 Greenwich, CT
203-863 Greenwich, CT
203-864 Bridgeport, CT
203-865 New Haven, CT
203-866 Norwalk, CT
203-867 New Haven, CT
203-868 New Haven, CT
203-869 Greenwich, CT
203-870 Bridgeport, CT
203-871 Branford, CT
203-872 New Haven, CT
203-873 Bridgeport, CT
203-874 Milford, CT
203-875 Darien, CT
203-876 Milford, CT
203-877 Milford, CT
203-878 Milford, CT
203-879 Wolcott, CT
203-880 Trumbull, CT
203-881 Seymour, CT
203-882 Milford, CT
203-883 Stamford, CT
203-884 Guilford, CT
203-885 Danbury, CT
203-886 Meriden, CT
203-887 New Haven, CT
203-888 Seymour, CT
203-889 New Haven, CT
203-890 Stamford, CT
203-891 New Haven, CT
203-894 Ridgefield, CT
203-895 Trumbull, CT
203-896 Madison, CT
203-897 Stamford, CT
203-898 Darien, CT
203-899 Norwalk, CT
203-900 Greenwich, CT
203-901 New Haven, CT
203-902 New Haven, CT
203-903 New Haven, CT
203-904 Norwalk, CT
203-905 Stamford, CT
203-907 New Haven, CT
203-908 Bridgeport, CT
203-909 New Haven, CT
203-910 Waterbury, CT
203-912 Stamford, CT
203-913 Bridgeport, CT
203-914 Norwalk, CT
203-915 New Haven, CT
203-916 Norwalk, CT
203-917 Danbury, CT
203-918 Stamford, CT
203-919 Norwalk, CT
203-920 Stamford, CT
203-921 Stamford, CT
203-923 Bridgeport, CT
203-927 New Haven, CT
203-928 New Haven, CT
203-930 Greenwich, CT
203-931 New Haven, CT
203-932 New Haven, CT
203-933 New Haven, CT
203-934 New Haven, CT
203-935 Meriden, CT
203-936 New Haven, CT
203-937 New Haven, CT
203-938 Redding, CT
203-939 Norwalk, CT
203-940 Stamford, CT
203-941 Seymour, CT
203-942 Danbury, CT
203-943 Norwalk, CT
203-945 Norwalk, CT
203-946 New Haven, CT
203-947 Danbury, CT
203-948 Danbury, CT
203-949 Wallingford, CT
203-951 Milford, CT
203-952 Norwalk, CT
203-953 Bridgeport, CT
203-955 Fairfield, CT
203-956 Norwalk, CT
203-957 Norwalk, CT
203-960 Stamford, CT
203-961 Stamford, CT
203-962 Stamford, CT
203-963 Norwalk, CT
203-964 Stamford, CT
203-965 Stamford, CT
203-966 New Canaan, CT
203-967 Stamford, CT
203-968 Stamford, CT
203-969 Stamford, CT
203-970 Norwalk, CT
203-971 Greenwich, CT
203-972 New Canaan, CT
203-973 Stamford, CT
203-974 New Haven, CT
203-975 Stamford, CT
203-977 Stamford, CT
203-978 Stamford, CT
203-979 Stamford, CT
203-980 New Haven, CT
203-981 Norwalk, CT
203-982 Waterbury, CT
203-983 Greenwich, CT
203-984 Norwalk, CT
203-985 New Haven, CT
203-986 Old Greenwich, CT
203-987 Greenwich, CT
203-988 New Haven, CT
203-989 Norwalk, CT
203-990 Old Greenwich, CT
203-991 Norwalk, CT
203-992 Greenwich, CT
203-993 Bridgeport, CT
203-994 Danbury, CT
203-995 Bridgeport, CT
203-996 New Haven, CT
203-998 Stamford, CT
203-999 New Haven, CT