Sub Code Listings for 203 - Connecticut

These are the cities covered by the 203 area code, located in Connecticut (CT). There are 777 sub codes listed under this area code.

These are the cities covered by the 203 area code, located in Connecticut (CT). There are 777 sub codes listed under this area code.

Enter the full number into the search bar below for a look-up report including Owner Name, Address, Number History, Phone Carrier and much more!


(* Please use the format 303-847-5412)

Sub-Code City, State
203-556 Bridgeport, CT
203-668 New Haven, CT
203-863 Greenwich, CT
203-254 Fairfield, CT
203-746 Danbury, CT
203-348 Stamford, CT
203-934 New Haven, CT
203-753 Waterbury, CT
203-412 New Haven, CT
203-464 New Haven, CT
203-463 Seymour, CT
203-391 Stamford, CT
203-714 Naugatuck, CT
203-740 Danbury, CT
203-667 Stamford, CT
203-375 Bridgeport, CT
203-844 Fairfield, CT
203-255 Fairfield, CT
203-510 Waterbury, CT
203-588 Stamford, CT
203-655 Darien, CT
203-531 Byram, CT
203-998 Stamford, CT
203-285 New Haven, CT
203-268 Trumbull, CT
203-261 Trumbull, CT
203-289 Danbury, CT
203-452 Trumbull, CT
203-538 Huntington, CT
203-346 Waterbury, CT
203-454 Westport, CT
203-902 New Haven, CT
203-569 Stamford, CT
203-839 Norwalk, CT
203-836 New Haven, CT
203-633 Wolcott, CT
203-884 Guilford, CT
203-286 Norwalk, CT
203-381 Bridgeport, CT
203-906 Ansonia-Derby, CT
203-417 Danbury, CT
203-977 Stamford, CT
203-437 Waterbury, CT
203-263 Woodbury, CT
203-968 Stamford, CT
203-613 Norwalk, CT
203-865 New Haven, CT
203-660 Byram, CT
203-371 Bridgeport, CT
203-551 Bridgeport, CT
203-278 Ansonia-Derby, CT
203-894 Ridgefield, CT
203-415 New Haven, CT
203-273 Stamford, CT
203-462 Stamford, CT
203-643 Branford, CT
203-848 New Haven, CT
203-281 New Haven, CT
203-736 Ansonia-Derby, CT
203-777 New Haven, CT
203-294 Wallingford, CT
203-769 Greenwich, CT
203-843 New Haven, CT
203-490 Naugatuck, CT
203-980 New Haven, CT
203-394 Bridgeport, CT
203-969 Stamford, CT
203-533 Guilford, CT
203-403 Ridgefield, CT
203-202 Darien, CT
203-654 New Haven, CT
203-398 Norwalk, CT
203-525 Waterbury, CT
203-279 Bridgeport, CT
203-572 Bridgeport, CT
203-433 Branford, CT
203-759 Waterbury, CT
203-762 Wilton, CT
203-882 Milford, CT
203-218 Bridgeport, CT
203-368 Bridgeport, CT
203-570 Stamford, CT
203-816 Trumbull, CT
203-283 Milford, CT
203-929 Huntington, CT
203-241 Danbury, CT
203-554 Stamford, CT
203-565 Waterbury, CT
203-563 Wilton, CT
203-716 New Canaan, CT
203-889 New Haven, CT
203-561 Stamford, CT
203-249 Stamford, CT
203-374 Bridgeport, CT
203-290 Bridgeport, CT
203-593 Norwalk, CT
203-430 New Haven, CT
203-907 New Haven, CT
203-310 New Canaan, CT
203-784 New Haven, CT
203-967 Stamford, CT
203-727 Bridgeport, CT
203-483 Branford, CT
203-869 Greenwich, CT
203-481 Branford, CT
203-599 Meriden, CT
203-802 Waterbury, CT
203-807 Norwalk, CT
203-651 Cheshire, CT
203-957 Norwalk, CT
203-661 Greenwich, CT
203-250 Cheshire, CT
203-891 New Haven, CT
203-351 Stamford, CT
203-790 Danbury, CT
203-420 Meriden, CT
203-834 Wilton, CT
203-766 New Haven, CT
203-693 Milford, CT
203-332 Bridgeport, CT
203-835 Norwalk, CT
203-920 New Canaan, CT
203-376 New Haven, CT
203-691 New Haven, CT
203-868 New Haven, CT
203-695 Waterbury, CT
203-776 New Haven, CT
203-577 Waterbury, CT
203-701 Milford, CT
203-845 Norwalk, CT
203-258 Bridgeport, CT
203-634 Meriden, CT
203-808 Waterbury, CT
203-607 Stamford, CT
203-729 Naugatuck, CT
203-212 Bridgeport, CT
203-265 Wallingford, CT
203-329 Stamford, CT
203-576 Bridgeport, CT
203-916 Bridgeport, CT
203-974 New Haven, CT
203-592 Waterbury, CT
203-530 New Haven, CT
203-388 Stamford, CT
203-973 Stamford, CT
203-747 New Haven, CT
203-801 New Canaan, CT
203-899 Norwalk, CT
203-445 Trumbull, CT
203-926 Huntington, CT
203-918 Stamford, CT
203-484 Branford, CT
203-744 Danbury, CT
203-999 New Haven, CT
203-749 Danbury, CT
203-970 Norwalk, CT
203-815 New Haven, CT
203-298 New Haven, CT
203-383 Bridgeport, CT
203-673 Bridgeport, CT
203-699 Cheshire, CT
203-269 Wallingford, CT
203-873 Bridgeport, CT
203-755 Waterbury, CT
203-558 Waterbury, CT
203-587 Georgetown, CT
203-826 Danbury, CT
203-322 Stamford, CT
203-522 Bridgeport, CT
203-486 Woodbury, CT
203-812 New Haven, CT
203-516 Ansonia-Derby, CT
203-681 Byram, CT
203-785 New Haven, CT
203-441 Wolcott, CT
203-431 Ridgefield, CT
203-246 Norwalk, CT
203-853 Norwalk, CT
203-947 Danbury, CT
203-793 Wallingford, CT
203-670 Waterbury, CT
203-671 New Haven, CT
203-534 Bridgeport, CT
203-288 New Haven, CT
203-618 Greenwich, CT
203-852 Norwalk, CT
203-639 Meriden, CT
203-827 Old Greenwich, CT
203-904 Norwalk, CT
203-810 Norwalk, CT
203-849 Norwalk, CT
203-895 Trumbull, CT
203-878 Milford, CT
203-636 Darien, CT
203-331 Bridgeport, CT
203-688 New Haven, CT
203-687 New Haven, CT
203-235 Meriden, CT
203-692 Fairfield, CT
203-513 Huntington, CT
203-337 Bridgeport, CT
203-432 New Haven, CT
203-789 New Haven, CT
203-405 Woodbury, CT
203-871 Branford, CT
203-615 Bridgeport, CT
203-880 Trumbull, CT
203-545 Bridgeport, CT
203-284 Wallingford, CT
203-734 Ansonia-Derby, CT
203-272 Cheshire, CT
203-653 Stamford, CT
203-416 Bridgeport, CT
203-421 Madison, CT
203-951 Milford, CT
203-663 Norwalk, CT
203-742 Greenwich, CT
203-775 Danbury, CT
203-508 New Haven, CT
203-794 Danbury, CT
203-498 New Haven, CT
203-396 Bridgeport, CT
203-505 Norwalk, CT
203-207 Danbury, CT
203-851 Norwalk, CT
203-940 Stamford, CT
203-706 Waterbury, CT
203-222 Westport, CT
203-647 Milford, CT
203-360 Bridgeport, CT
203-991 Norwalk, CT
203-586 Woodbury, CT
203-665 Wilton, CT
203-886 Meriden, CT
203-702 Danbury, CT
203-859 New Haven, CT
203-783 Milford, CT
203-267 Woodbury, CT
203-307 Fairfield, CT
203-773 New Haven, CT
203-532 Byram, CT
203-748 Danbury, CT
203-276 Stamford, CT
203-425 Stamford, CT
203-409 Old Greenwich, CT
203-434 Norwalk, CT
203-444 New Haven, CT
203-521 Bridgeport, CT
203-690 Bridgeport, CT
203-456 Danbury, CT
203-253 Stamford, CT
203-247 Norwalk, CT
203-898 Darien, CT
203-287 New Haven, CT
203-315 Branford, CT
203-982 Waterbury, CT
203-482 Danbury, CT
203-721 Waterbury, CT
203-715 Meriden, CT
203-418 Fairfield, CT
203-402 Huntington, CT
203-341 Westport, CT
203-493 Georgetown, CT
203-625 Greenwich, CT
203-404 New Haven, CT
203-678 Wallingford, CT
203-941 Seymour, CT
203-566 Stamford, CT
203-772 New Haven, CT
203-295 Norwalk, CT
203-369 Old Greenwich, CT
203-707 Waterbury, CT
203-270 Newtown, CT
203-303 Wallingford, CT
203-875 Darien, CT
203-335 Bridgeport, CT
203-659 Fairfield, CT
203-767 Bridgeport, CT
203-629 Greenwich, CT
203-591 Waterbury, CT
203-761 Wilton, CT
203-942 Danbury, CT
203-413 Greenwich, CT
203-401 New Haven, CT
203-581 Bridgeport, CT
203-356 Stamford, CT
203-312 Danbury, CT
203-637 Old Greenwich, CT
203-632 Naugatuck, CT
203-386 Bridgeport, CT
203-536 Stamford, CT
203-805 Waterbury, CT
203-677 Wallingford, CT
203-939 Norwalk, CT
203-763 Fairfield, CT
203-214 New Haven, CT
203-726 Bridgeport, CT
203-226 Westport, CT
203-737 New Haven, CT
203-626 Wallingford, CT
203-230 New Haven, CT
203-779 Madison, CT
203-514 Meriden, CT
203-535 New Haven, CT
203-817 Stamford, CT
203-870 Bridgeport, CT
203-526 Bridgeport, CT
203-919 Norwalk, CT
203-756 Waterbury, CT
203-985 New Haven, CT
203-232 Waterbury, CT
203-296 Bridgeport, CT
203-366 Bridgeport, CT
203-993 Bridgeport, CT
203-819 Waterbury, CT
203-883 Stamford, CT
203-568 Waterbury, CT
203-652 New Canaan, CT
203-905 Stamford, CT
203-635 Westport, CT
203-488 Branford, CT
203-987 Greenwich, CT
203-573 Waterbury, CT
203-438 Ridgefield, CT
203-209 Bridgeport, CT
203-379 Meriden, CT
203-553 New Haven, CT
203-925 Huntington, CT
203-537 Meriden, CT
203-949 Wallingford, CT
203-723 Naugatuck, CT
203-608 Meriden, CT
203-855 Norwalk, CT
203-469 New Haven, CT
203-605 New Haven, CT
203-997 Ansonia-Derby, CT
203-881 Seymour, CT
203-943 Norwalk, CT
203-543 Bridgeport, CT
203-674 Stamford, CT
203-627 New Haven, CT
203-517 Stamford, CT
203-550 Stamford, CT
203-712 Huntington, CT
203-760 Bridgeport, CT
203-890 Stamford, CT
203-703 Stamford, CT
203-623 New Haven, CT
203-798 Danbury, CT
203-306 Milford, CT
203-754 Waterbury, CT
203-833 New Haven, CT
203-496 Greenwich, CT
203-395 Bridgeport, CT
203-965 Stamford, CT
203-741 Wallingford, CT
203-400 Trumbull, CT
203-725 Waterbury, CT
203-953 Bridgeport, CT
203-443 Meriden, CT
203-876 Milford, CT
203-877 Milford, CT
203-529 Wilton, CT
203-683 Bridgeport, CT
203-838 Norwalk, CT
203-354 Norwalk, CT
203-350 Madison, CT
203-220 Trumbull, CT
203-705 Stamford, CT
203-964 Stamford, CT
203-624 New Haven, CT
203-933 New Haven, CT
203-857 Norwalk, CT
203-745 New Haven, CT
203-923 Bridgeport, CT
203-528 Waterbury, CT
203-972 New Canaan, CT
203-495 New Haven, CT
203-954 Ansonia-Derby, CT
203-494 New Haven, CT
203-389 New Haven, CT
203-718 Cheshire, CT
203-336 Bridgeport, CT
203-377 Bridgeport, CT
203-846 Norwalk, CT
203-984 Norwalk, CT
203-818 Norwalk, CT
203-903 New Haven, CT
203-600 Meriden, CT
203-387 New Haven, CT
203-730 Danbury, CT
203-466 New Haven, CT
203-352 Stamford, CT
203-682 Westport, CT
203-201 New Haven, CT
203-622 Greenwich, CT
203-799 New Haven, CT
203-328 Stamford, CT
203-448 Danbury, CT
203-547 Stamford, CT
203-200 New Haven, CT
203-208 Branford, CT
203-260 Bridgeport, CT
203-300 Danbury, CT
203-644 Norwalk, CT
203-419 Waterbury, CT
203-758 Waterbury, CT
203-897 Stamford, CT
203-804 New Haven, CT
203-656 Darien, CT
203-365 Bridgeport, CT
203-216 Westport, CT
203-546 Danbury, CT
203-979 Stamford, CT
203-317 Meriden, CT
203-245 Madison, CT
203-512 Danbury, CT
203-506 New Haven, CT
203-242 Huntington, CT
203-966 New Canaan, CT
203-240 Danbury, CT
203-340 Greenwich, CT
203-640 New Haven, CT
203-248 New Haven, CT
203-642 Norwalk, CT
203-874 Milford, CT
203-768 Waterbury, CT
203-935 Meriden, CT
203-338 Bridgeport, CT
203-946 New Haven, CT
203-938 Redding, CT
203-914 Stamford, CT
203-837 Danbury, CT
203-796 Danbury, CT
203-210 Wilton, CT
203-560 Waterbury, CT
203-320 Darien, CT
203-378 Bridgeport, CT
203-442 New Canaan, CT
203-850 New Haven, CT
203-666 Bridgeport, CT
203-549 Bridgeport, CT
203-548 Stamford, CT
203-829 Norwalk, CT
203-824 New Haven, CT
203-457 Guilford, CT
203-822 Norwalk, CT
203-380 Bridgeport, CT
203-487 Stamford, CT
203-559 Darien, CT
203-892 Ansonia-Derby, CT
203-981 Norwalk, CT
203-205 Danbury, CT
203-657 New Haven, CT
203-407 New Haven, CT
203-206 Waterbury, CT
203-915 New Haven, CT
203-231 Ansonia-Derby, CT
203-797 Danbury, CT
203-460 Danbury, CT
203-685 Bridgeport, CT
203-764 New Haven, CT
203-552 Byram, CT
203-428 Stamford, CT
203-363 Stamford, CT
203-501 Danbury, CT
203-720 Naugatuck, CT
203-221 Westport, CT
203-385 Bridgeport, CT
203-735 Ansonia-Derby, CT
203-828 Seymour, CT
203-347 Byram, CT
203-616 Danbury, CT
203-292 Fairfield, CT
203-542 Greenwich, CT
203-449 Bridgeport, CT
203-669 Darien, CT
203-709 Waterbury, CT
203-564 Stamford, CT
203-515 Norwalk, CT
203-579 Bridgeport, CT
203-541 Stamford, CT
203-461 Stamford, CT
203-696 Bridgeport, CT
203-962 Stamford, CT
203-885 Danbury, CT
203-397 New Haven, CT
203-612 Bridgeport, CT
203-580 Byram, CT
203-932 New Haven, CT
203-795 New Haven, CT
203-621 Darien, CT
203-574 Waterbury, CT
203-257 Bridgeport, CT
203-996 New Haven, CT
203-803 Norwalk, CT
203-990 Old Greenwich, CT
203-440 Meriden, CT
203-908 Bridgeport, CT
203-728 Stamford, CT
203-937 New Haven, CT
203-342 Bridgeport, CT
203-518 Waterbury, CT
203-952 Norwalk, CT
203-321 Stamford, CT
203-983 Greenwich, CT
203-910 Waterbury, CT
203-367 Bridgeport, CT
203-446 Ansonia-Derby, CT
203-831 Norwalk, CT
203-252 Stamford, CT
203-948 Danbury, CT
203-243 Bridgeport, CT
203-277 Old Greenwich, CT
203-520 Bridgeport, CT
203-619 New Haven, CT
203-866 Norwalk, CT
203-662 Darien, CT
203-732 Ansonia-Derby, CT
203-909 New Haven, CT
203-630 Meriden, CT
203-847 Norwalk, CT
203-786 New Haven, CT
203-429 Westport, CT
203-791 Danbury, CT
203-917 Danbury, CT
203-792 Danbury, CT
203-280 Darien, CT
203-499 New Haven, CT
203-359 Stamford, CT
203-788 Danbury, CT
203-527 Waterbury, CT
203-864 Bridgeport, CT
203-282 Stamford, CT
203-507 New Haven, CT
203-704 Wolcott, CT
203-743 Danbury, CT
203-606 New Haven, CT
203-324 Stamford, CT
203-787 New Haven, CT
203-739 Danbury, CT
203-930 Greenwich, CT
203-291 Westport, CT
203-364 Newtown, CT
203-489 Greenwich, CT
203-614 Stamford, CT
203-645 New Haven, CT
203-782 New Haven, CT
203-813 Byram, CT
203-936 New Haven, CT
203-382 Bridgeport, CT
203-406 Stamford, CT
203-672 New Haven, CT
203-781 New Haven, CT
203-601 Trumbull, CT
203-620 Darien, CT
203-319 Fairfield, CT
203-888 Seymour, CT
203-590 Trumbull, CT
203-750 Norwalk, CT
203-344 Old Greenwich, CT
203-912 Stamford, CT
203-223 Stamford, CT
203-275 Bridgeport, CT
203-841 Waterbury, CT
203-680 New Haven, CT
203-602 Stamford, CT
203-355 Stamford, CT
203-648 Danbury, CT
203-358 Stamford, CT
203-524 Stamford, CT
203-597 Waterbury, CT
203-823 New Haven, CT
203-814 Bridgeport, CT
203-502 Bridgeport, CT
203-675 New Haven, CT
203-820 Norwalk, CT
203-500 New Haven, CT
203-427 Meriden, CT
203-617 Danbury, CT
203-986 Old Greenwich, CT
203-492 New Haven, CT
203-603 New Haven, CT
203-259 Fairfield, CT
203-582 New Haven, CT
203-357 Stamford, CT
203-234 New Haven, CT
203-353 Stamford, CT
203-309 Darien, CT
203-893 Ansonia-Derby, CT
203-956 Norwalk, CT
203-274 Stamford, CT
203-921 Stamford, CT
203-330 Bridgeport, CT
203-467 New Haven, CT
203-752 New Haven, CT
203-238 Meriden, CT
203-451 Westport, CT
203-961 Stamford, CT
203-256 Fairfield, CT
203-717 Greenwich, CT
203-271 Cheshire, CT
203-301 Milford, CT
203-598 Waterbury, CT
203-676 New Haven, CT
203-204 Guilford, CT
203-455 Bridgeport, CT
203-806 Cheshire, CT
203-228 Waterbury, CT
203-765 New Haven, CT
203-217 Waterbury, CT
203-424 Darien, CT
203-738 Guilford, CT
203-901 New Haven, CT
203-227 Westport, CT
203-435 New Haven, CT
203-872 Cheshire, CT
203-896 Madison, CT
203-862 Greenwich, CT
203-239 New Haven, CT
203-325 Stamford, CT
203-856 Norwalk, CT
203-960 Stamford, CT
203-361 New Haven, CT
203-297 Danbury, CT
203-219 Stamford, CT
203-995 Bridgeport, CT
203-825 Danbury, CT
203-578 Waterbury, CT
203-594 New Canaan, CT
203-800 New Haven, CT
203-326 Stamford, CT
203-426 Newtown, CT
203-302 Greenwich, CT
203-345 Bridgeport, CT
203-978 Stamford, CT
203-830 Danbury, CT
203-539 Stamford, CT
203-821 New Haven, CT
203-988 New Haven, CT
203-924 Huntington, CT
203-610 Bridgeport, CT
203-408 Redding, CT
203-519 Waterbury, CT
203-414 Bridgeport, CT
203-887 New Haven, CT
203-224 Bridgeport, CT
203-994 Danbury, CT
203-540 Bridgeport, CT
203-628 Danbury, CT
203-450 Bridgeport, CT
203-832 Stamford, CT
203-571 Westport, CT
203-641 New Haven, CT
203-251 Stamford, CT
203-323 Stamford, CT
203-504 Stamford, CT
203-589 New Haven, CT
203-229 Norwalk, CT
203-458 Guilford, CT
203-370 New Haven, CT
203-724 Stamford, CT
203-861 Greenwich, CT
203-931 New Haven, CT
203-333 Bridgeport, CT
203-686 Meriden, CT
203-780 New Haven, CT
203-390 New Haven, CT
203-523 Norwalk, CT
203-422 Greenwich, CT
203-963 Norwalk, CT
203-596 Waterbury, CT
203-399 Stamford, CT
203-879 Wolcott, CT
203-509 Waterbury, CT
203-410 New Haven, CT
203-778 Danbury, CT
203-480 Fairfield, CT
203-649 Cheshire, CT
203-595 Stamford, CT
203-262 Woodbury, CT
203-922 Huntington, CT
203-975 Stamford, CT
203-453 Guilford, CT
203-945 Norwalk, CT
203-557 Westport, CT
203-299 Norwalk, CT
203-244 Ridgefield, CT
203-927 New Haven, CT
203-392 New Haven, CT
203-497 New Haven, CT
203-694 Meriden, CT
203-609 Stamford, CT
203-384 Bridgeport, CT
203-710 New Haven, CT
203-854 Norwalk, CT
203-373 Bridgeport, CT
203-575 Waterbury, CT
203-858 Norwalk, CT
203-842 Norwalk, CT
203-225 Huntington, CT
203-477 New Haven, CT
203-293 Westport, CT
203-913 Bridgeport, CT
203-308 Ansonia-Derby, CT
203-233 Waterbury, CT
203-684 New Haven, CT
203-992 Greenwich, CT
203-423 Wilton, CT
203-955 Fairfield, CT
203-708 Stamford, CT
203-731 Danbury, CT
203-584 New Haven, CT
203-465 Waterbury, CT
203-362 Bridgeport, CT
203-304 Newtown, CT
203-334 Bridgeport, CT
203-840 Norwalk, CT
203-679 Wallingford, CT
203-664 Redding, CT
203-722 Norwalk, CT
203-313 Danbury, CT
203-928 New Haven, CT
203-689 Guilford, CT
203-213 Meriden, CT
203-343 Ansonia-Derby, CT
203-944 Huntington, CT
203-459 Trumbull, CT
203-567 Huntington, CT
203-604 Norwalk, CT
203-774 Wallingford, CT
203-237 Meriden, CT
203-372 Bridgeport, CT
203-264 Woodbury, CT
203-989 Stamford, CT
203-867 New Haven, CT
203-757 Waterbury, CT
203-770 Danbury, CT
203-638 Trumbull, CT
203-646 Branford, CT
203-503 New Haven, CT
203-447 Huntington, CT
203-585 Stamford, CT
203-491 Newtown, CT
203-339 Bridgeport, CT
203-468 New Haven, CT
203-971 Greenwich, CT
203-631 Meriden, CT
203-327 Stamford, CT
203-583 Bridgeport, CT
203-697 Wallingford, CT
203-236 Waterbury, CT
203-305 Ansonia-Derby, CT
203-809 New Haven, CT
203-713 Milford, CT
203-719 Stamford, CT
203-751 Ansonia-Derby, CT
203-562 New Haven, CT
203-658 Stamford, CT
203-544 Georgetown, CT
203-436 New Haven, CT
203-733 Danbury, CT
203-771 New Haven, CT
203-470 Danbury, CT
203-479 New Haven, CT
203-650 Bridgeport, CT
203-439 Cheshire, CT
203-318 Madison, CT
203-485 Greenwich, CT
203-393 New Haven, CT
203-266 Woodbury, CT
203-215 New Haven, CT
203-314 New Haven, CT
203-316 Stamford, CT
203-900 Greenwich, CT
203-698 Old Greenwich, CT
203-349 Westport, CT